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Zhao Y, Cui W, Shen Q, Zhao S, Qiu Y, Chen F, Lin J, Fang C, Zhu L. Zwitterionic nanospheres engineered co-polymer composite membrane for precise protein-protein separation via dynamic self-assembly micelle deposition. Colloids Surf B Biointerfaces 2024; 243:114118. [PMID: 39079187 DOI: 10.1016/j.colsurfb.2024.114118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 07/18/2024] [Accepted: 07/20/2024] [Indexed: 09/17/2024]
Abstract
The accurate protein-protein separation is important but technically challenging. Achieving such a precise separation using membrane requires the selective channels with appropriate pore geometry structure and high anti-fouling property. In this study, polyethersulfone-b-poly(sulfobetaine methyl methacrylate) (PES-b-PSBMA) was synthesized and engineered onto polysulfone (PSF) ultrafiltration (UF) membrane to fabricate zwitterionic nanospheres engineered co-polymer (ZN-e-CoP) composite membrane via dynamic self-assembly micelle deposition. On the one hand, self-assembly zwitterionic nanospheres were used as blocks to construct hydrophilic layers with size-dependent sieving channels, endowing ZN-e-CoP composite membranes with enhanced permselectivity and protein-protein separation abilities, meanwhile zwitterionic groups from nanospheres reinforced the structure stability of nanospheres/nanospheres and nanospheres/membrane via multiple intermolecular interactions. On the other hand, zwitterionic nanospheres can induce to produce the hydration layer enveloping themselves by binding water molecules, where hydration layer acts as a protective barrier on the membrane surface, impeding the protein adhesion. Hence, ZN-e-CoP_1a composite membrane exhibited superior separation properties with Lysozyme/Bovine Serum Albumin (BSA) separation factor of 18.1 and 95.4 % rejection against BSA, 10.1 and 2.3 times, respectively, higher these of pristine PSF membrane (1.8 and 42.1 %), without obviously sacrificing water flux. Simultaneously, hydration layer enables the ZN-e-CoP_1a membrane with enhanced anti-fouling performance and durability during the long-term operations. The proposed approach opens new pathways to fabricate excellent anti-fouling membranes for precise protein-protein separation.
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Affiliation(s)
- Yifan Zhao
- Chemistry Department, Zhejiang University, Hangzhou 310027, P. R. China
| | - Wenshuo Cui
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Qin Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China; International Research Center for X Polymers, Zhejiang University, Haining 314400, P. R. China.
| | - Shuzhen Zhao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China; International Research Center for X Polymers, Zhejiang University, Haining 314400, P. R. China
| | - Yayu Qiu
- Chemistry Department, Zhejiang University, Hangzhou 310027, P. R. China
| | - Fang Chen
- Chemistry Department, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jiuyang Lin
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, P. R. China
| | - Chuanjie Fang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China; International Research Center for X Polymers, Zhejiang University, Haining 314400, P. R. China.
| | - Liping Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
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2
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Serkhacheva NS, Prokopov NI, Lysenko EA, Kozhunova EY, Chernikova EV. Modern Trends in Polymerization-Induced Self-Assembly. Polymers (Basel) 2024; 16:1408. [PMID: 38794601 PMCID: PMC11125046 DOI: 10.3390/polym16101408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 05/01/2024] [Accepted: 05/12/2024] [Indexed: 05/26/2024] Open
Abstract
Polymerization-induced self-assembly (PISA) is a powerful and versatile technique for producing colloidal dispersions of block copolymer particles with desired morphologies. Currently, PISA can be carried out in various media, over a wide range of temperatures, and using different mechanisms. This method enables the production of biodegradable objects and particles with various functionalities and stimuli sensitivity. Consequently, PISA offers a broad spectrum of potential commercial applications. The aim of this review is to provide an overview of the current state of rational synthesis of block copolymer particles with diverse morphologies using various PISA techniques and mechanisms. The discussion begins with an examination of the main thermodynamic, kinetic, and structural aspects of block copolymer micellization, followed by an exploration of the key principles of PISA in the formation of gradient and block copolymers. The review also delves into the main mechanisms of PISA implementation and the principles governing particle morphology. Finally, the potential future developments in PISA are considered.
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Affiliation(s)
- Natalia S. Serkhacheva
- Lomonosov Institute of Fine Chemical Technologies, MIREA—Russian Technological University, pr. Vernadskogo, 86, 119571 Moscow, Russia;
| | - Nickolay I. Prokopov
- Lomonosov Institute of Fine Chemical Technologies, MIREA—Russian Technological University, pr. Vernadskogo, 86, 119571 Moscow, Russia;
| | - Evgenii A. Lysenko
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1, bld. 3, 119991 Moscow, Russia; (E.A.L.); (E.Y.K.)
| | - Elena Yu. Kozhunova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1, bld. 3, 119991 Moscow, Russia; (E.A.L.); (E.Y.K.)
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1, bld. 2, 119991 Moscow, Russia
| | - Elena V. Chernikova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1, bld. 3, 119991 Moscow, Russia; (E.A.L.); (E.Y.K.)
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Iliopoulou A, Iatridi Z, Tsitsilianis C. A Remarkable Impact of pH on the Thermo-Responsive Properties of Alginate-Based Composite Hydrogels Incorporating P2VP-PEO Micellar Nanoparticles. Polymers (Basel) 2024; 16:886. [PMID: 38611144 PMCID: PMC11013835 DOI: 10.3390/polym16070886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
A heterograft copolymer with an alginate backbone, hetero-grafted by polymer pendant chains displaying different lower critical solution temperatures (LCSTs), combined with a pH-responsive poly(2-vinyl pyridine)-b-poly(ethylene oxide) (P2VP-b-PEO) diblock copolymer forming micellar nanoparticles, was investigated in aqueous media at various pHs. Due to its thermo-responsive side chains, the copolymer forms hydrogels with a thermo-induced sol-gel transition, above a critical temperature, Tgel (thermo-thickening). However, by lowering the pH of the medium in an acidic regime, a remarkable increase in the elasticity of the formulation was observed. This effect was more pronounced in low temperatures (below Tgel), suggesting secondary physical crosslinking, which induces significant changes in the hydrogel thermo-responsiveness, transforming the sol-gel transition to soft gel-strong gel. Moreover, the onset of thermo-thickening shifted to lower temperatures followed by the broadening of the transition zone, implying intermolecular interactions between the uncharged alginate backbone with the PNIPAM side chains, likely through H-bonding. The shear-thinning behavior of the soft gel in low temperatures provides injectability, which allows potential applications for 3D printing. Furthermore, the heterograft copolymer/nanoparticles composite hydrogel, encapsulating a model hydrophobic drug in the hydrophobic cores of the nanoparticles, was evaluated as a pH-responsive drug delivery system. The presented tunable drug delivery system might be useful for biomedical potential applications.
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Jain A, Bhardwaj K, Bansal M. Polymeric Micelles as Drug Delivery System: Recent Advances, Approaches, Applications and Patents. Curr Drug Saf 2024; 19:163-171. [PMID: 37282644 DOI: 10.2174/1574886318666230605120433] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/18/2022] [Accepted: 11/29/2022] [Indexed: 06/08/2023]
Abstract
Administering therapeutics through the oral route is a pervasive and widely approved medication administration approach. However, it has been found that many drugs show low systemic absorption when delivered through this route. Such limitations of oral drug delivery can be overcome by polymeric micelles acting as vehicles. As a result, they improve drug absorption by protecting loaded drug substances from the gastrointestinal system's hostile conditions, allowing controlled drug release at a specific site, extending the time spent in the gut through mucoadhesion, and inhibiting the efflux pump from reducing therapeutic agent accumulation. To promote good oral absorption of a weakly water-soluble medicinal drug, the loaded medicine should be protected from the hostile atmosphere of the GI tract. Polymeric micelles can be stacked with a broad assortment of ineffectively dissolvable medications, improving bioavailability. This review discusses the major mechanism, various types, advantages, and limitations for developing the polymeric micelle system and certain micellar drug delivery system applications. The primary goal of this review is to illustrate how polymeric micelles can be used to deliver poorly water-soluble medications.
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Affiliation(s)
- Anushka Jain
- Department of Pharmacy, Raj Kumar Goel Institute of Technology (Pharmacy), 5-Km. Stone, Delhi-Meerut Road, Ghaziabad, Uttar Pradesh, 201003, India
| | - Kamini Bhardwaj
- Department of Pharmacy, Raj Kumar Goel Institute of Technology (Pharmacy), 5-Km. Stone, Delhi-Meerut Road, Ghaziabad, Uttar Pradesh, 201003, India
| | - Mukesh Bansal
- Department of Pharmacy, Raj Kumar Goel Institute of Technology (Pharmacy), 5-Km. Stone, Delhi-Meerut Road, Ghaziabad, Uttar Pradesh, 201003, India
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McQuade J, Jäkle F. Tris(pyridyl)borates: an emergent class of versatile and robust polydentate ligands for catalysis and materials applications. Dalton Trans 2023; 52:10278-10285. [PMID: 37462446 DOI: 10.1039/d3dt01665j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Tridentate ligands that incorporate pyridyl rather than pyrazolyl groups are emerging as an attractive class of "scorpionate"-type ligands with enhanced electron donation, increased stability, and divergent geometry at the metal centre relative to tris(pyrazolyl)borates originally introduced by Trofimenko. Following our initial reports, the tris(pyridyl)borate (Tpyb) ligand architecture has been adopted by several research groups in pursuit of functional metal complexes that offer new opportunities in catalysis and materials science. While earlier work had been focused on symmetric octahedral complexes, ML2, which are advantageous as highly robust building blocks in materials sciences, recently introduced new ligand designs provide access to heteroleptic metal complexes with vacant sites that lend themselves to applications in catalysis. Signficant progress has also been made in the post-complexation functionalization of these ligands via electrophilic and nucleophilic substitution reactions at the boron centres, opening up new routes for integration of Tpyb complexes with diverse functional materials while also raising interesting mechanistic questions.
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Affiliation(s)
- James McQuade
- Department of Chemistry, Rutgers University Newark, 73 Warren Street, Newark, New Jersey 07102, USA.
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University Newark, 73 Warren Street, Newark, New Jersey 07102, USA.
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6
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Customizing polyelectrolytes through hydrophobic grafting. Adv Colloid Interface Sci 2022; 306:102721. [DOI: 10.1016/j.cis.2022.102721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 06/10/2022] [Accepted: 06/10/2022] [Indexed: 11/22/2022]
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7
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Margossian KO, Brown MU, Emrick T, Muthukumar M. Coacervation in polyzwitterion-polyelectrolyte systems and their potential applications for gastrointestinal drug delivery platforms. Nat Commun 2022; 13:2250. [PMID: 35474060 PMCID: PMC9042848 DOI: 10.1038/s41467-022-29851-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 03/15/2022] [Indexed: 11/15/2022] Open
Abstract
Traditionally, complex coacervation is regarded as a process whereby two oppositely charged polyelectrolytes self-assemble into spherical droplets. Here, we introduce the polyzwitterionic complex, “pZC”, formed by the liquid-liquid phase separation of a polyzwitterion and a polyelectrolyte, and elucidate a mechanism by which such complexes can assemble using theory and experimental evidence. This system exhibits orthogonal phase behavior-it remains intact in acidic conditions, but disassembles as the pH increases, a process governed by the acid-base equilibria of the constituent chains. We relate the observed phase behavior to physiological conditions within the gastrointestinal tract with a simulation of the gastroduodenal junction, and demonstrate using video microscopy the viability of polyzwitterionic coacervates as technologies for the pH-triggered release of cargo. Such a system is envisaged to tackle imminent problems of drug transport via the oral route and serve as a packaging solution to increase uptake efficiency. Coacervation is widely studied as potential drug delivery platform, but formation of coacervates at lower pH ranges, such as found in the gastrointestinal tract, remains challenging. Here, using theory and experimental methods, the authors demonstrate the formation of a polyzwitterionic complex, formed by coacervation of a polyzwitterion and a polyelectrolyte, exhibiting orthogonal phase behavior under physiological low pH conditions.
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Affiliation(s)
- Khatcher O Margossian
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA, 01003, USA.,Rush Medical College, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Marcel U Brown
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA, 01003, USA
| | - Todd Emrick
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA, 01003, USA
| | - Murugappan Muthukumar
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA, 01003, USA.
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8
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Nguyen TL, Ishihara K, Yusa SI. Separated Micelles Formation of pH-Responsive Random and Block Copolymers Containing Phosphorylcholine Groups. Polymers (Basel) 2022; 14:577. [PMID: 35160566 PMCID: PMC8838922 DOI: 10.3390/polym14030577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 11/16/2022] Open
Abstract
The self-assembly of pH-responsive random and block copolymers composed of 2-(N,N-diisopropylamino)ethyl methacrylate and 2-methacryloyloxyethyl phosphorylcholine was investigated in aqueous media. Their pH-responsive behaviors were investigated in aqueous media by dynamic light scattering (DLS) and fluorescence measurements using a pyrene hydrophobic fluorescence probe. In an acidic environment, these copolymers existed as single polymer chains that did not interact with each other. In contrast, upon increasing the pH of the solution above the critical value of ~8, separated micelles were formed in the mixture, which was indicated by bimodal distribution in DLS results with radius of 4.5 and 10.4 nm, corresponding to the random and block copolymer micelles, respectively. Fluorescence resonance energy transfer efficiencies were near to zero in the mixture of the donor labeled block and acceptor labeled random copolymers under both acidic and basic pH. These results demonstrated the coexistence of two distinct micelles.
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Affiliation(s)
- Thi Lien Nguyen
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan;
| | - Kazuhiko Ishihara
- Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan;
| | - Shin-ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan;
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9
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10
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Interactions between an Associative Amphiphilic Block Polyelectrolyte and Surfactants in Water: Effect of Charge Type on Solution Properties and Aggregation. Polymers (Basel) 2021; 13:polym13111729. [PMID: 34070596 PMCID: PMC8197838 DOI: 10.3390/polym13111729] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/21/2021] [Accepted: 05/22/2021] [Indexed: 11/30/2022] Open
Abstract
The study of interactions between polyelectrolytes (PE) and surfactants is of great interest for both fundamental and applied research. These mixtures can represent, for example, models of self-assembly and molecular organization in biological systems, but they are also relevant in industrial applications. Amphiphilic block polyelectrolytes represent an interesting class of PE, but their interactions with surfactants have not been extensively explored so far, most studies being restricted to non-associating PE. In this work, interactions between an anionic amphiphilic triblock polyelectrolyte and different types of surfactants bearing respectively negative, positive and no charge, are investigated via surface tension and solution rheology measurements for the first time. It is evidenced that the surfactants have different effects on viscosity and surface tension, depending on their charge type. Micellization of the surfactant is affected by the presence of the polymer in all cases; shear viscosity of polymer solutions decreases in presence of the same charge or nonionic surfactants, while the opposite charge surfactant causes precipitation. This study highlights the importance of the charge type, and the role of the associating hydrophobic block in the PE structure, on the solution behavior of the mixtures. Moreover, a possible interaction model is proposed, based on the obtained data.
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11
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Murmiliuk A, Filippov SK, Rud O, Košovan P, Tošner Z, Radulescu A, Skandalis A, Pispas S, Šlouf M, Štěpánek M. Reversible multilayered vesicle-like structures with fluid hydrophobic and interpolyelectrolyte layers. J Colloid Interface Sci 2021; 599:313-325. [PMID: 33957424 DOI: 10.1016/j.jcis.2021.04.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/31/2021] [Accepted: 04/12/2021] [Indexed: 10/21/2022]
Abstract
Hydrophobic blocks of amphiphilic block copolymers often form glassy micellar cores at room temperature with a rigid structure that limits their applications as nanocapsules for targeted delivery. Nevertheless, we prepared and analyzed core/shell micelles with a soft core, formed by a self-assembled block copolymer consisting of a hydrophobic block and a polycation block, poly(lauryl acrylate)-block-poly(trimethyl-aminoethyl acrylate) (PLA-QPDMAEA), in aqueous solution. By light and small-angle neutron scattering, by transmission electron microscopy and by fluorescence spectroscopy, we showed that these core/shell micelles are spherical and cylindrical with a fluid-like PLA core and a positively charged outer shell and that they can encapsulate and release hydrophobic solutes. Moreover, after mixing these PLA-QPDMAEA core/shell micelles with another diblock copolymer, consisting of a hydrophilic block and a polyanion block, namely poly(ethylene oxide)-block-poly(methacrylic acid) (PEO-PMAA), we observed the formation of novel vesicle-like multicompartment structures containing both soft hydrophobic and interpolyelectrolyte (IPEC) layers. By combining small-angle neutron scattering with self-consistent field modeling, we confirmed the formation of these complex vesicle-like structures with a swollen PEO core, an IPEC inner layer, a PLA soft layer, an IPEC outer layer and a loose PEO corona. Thus, these multicompartment micelles with fluid and IPEC layers and a hydrophilic corona may be used as nanocapsules with several tunable properties, including the ability to control the thickness of each layer, the charge of the IPEC layers and the stability of the micelles, to deliver both hydrophobic and multivalent solutes.
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Affiliation(s)
- Anastasiia Murmiliuk
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Prague 2, Czech Republic
| | - Sergey K Filippov
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland; Department of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - Oleg Rud
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Prague 2, Czech Republic
| | - Peter Košovan
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Prague 2, Czech Republic
| | - Zdeněk Tošner
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Prague 2, Czech Republic
| | - Aurel Radulescu
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science@MLZ, Lichtenbergstraße 1, D-85747 Garching, Germany
| | - Athanasios Skandalis
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského náméstí 2, Prague 6 162 06, Czech Republic
| | - Miroslav Štěpánek
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Prague 2, Czech Republic.
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12
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Structural control in micelles of alkyl acrylate-acrylate copolymers via alkyl chain length and block length. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04663-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
AbstractAmphiphilic copolymers with poly (alkyl acrylate) as hydrophobic and poly (acrylic acid) (AA) as hydrophilic block have been synthesised. The alkyl chain was varied from butyl to dodecyl, thereby varying systematically the polarity of the hydrophobic block whose length was between 35 and 70, while the PAA block had ~ 100 units. Such relatively short amphiphiles should equilibrate quickly in aqueous solution, and their corresponding self-assembly properties were characterised by means of critical micelle concentration (cmc) determination. Detailed information regarding the aggregate structures was obtained by static light scattering (SLS) and small angle neutron scattering (SANS). This could be correlated with the molecular architecture of the copolymers and the degree of ionisation of the PAA block. Generally, it is found that the aggregation numbers become smaller upon fully charging the PAA head group and only for dodecyl acrylate really well-defined micellar aggregates are formed. This means that the extent of hydrophobicity of the alkyl acrylate block and its length determine in a clear fashion the propensity for micelle formation and the mass and aggregation number of the formed micelles.
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13
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Abetz V, Kremer K, Müller M, Reiter G. Functional Macromolecular Systems: Kinetic Pathways to Obtain Tailored Structures. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800334] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Volker Abetz
- Institute of Polymer Research; Helmholtz-Zentrum Geesthacht Max-Planck-Straße 1 21502 Geesthacht Germany
- Institute of Physical Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Kurt Kremer
- Polymer Theory; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Marcus Müller
- Institute for Theoretical Physics; Georg-August University of Göttingen; Friedrich-Hund-Platz 1 37077 Göttingen Germany
| | - Günter Reiter
- Institute of Physics; Albert-Ludwigs-University of Freiburg; Hermann-Herder-Str. 3 79104 Freiburg Germany
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14
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Jiang Y, Lodge TP, Reineke TM. Packaging pDNA by Polymeric ABC Micelles Simultaneously Achieves Colloidal Stability and Structural Control. J Am Chem Soc 2018; 140:11101-11111. [DOI: 10.1021/jacs.8b06309] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yaming Jiang
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
| | - Timothy P. Lodge
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Theresa M. Reineke
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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15
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Self-assembly of rarely polymer-grafted nanoparticles in dilute solutions and on a surface: From non-spherical vesicles to graphene-like sheets. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.03.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Chrysostomou V, Pispas S. Stimuli-responsive amphiphilic PDMAEMA-b
-PLMA copolymers and their cationic and zwitterionic analogs. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28931] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Varvara Chrysostomou
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave; Athens 11635 Greece
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave; Athens 11635 Greece
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17
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Hydrophobically modified polyacrylates (hmPAAs) with long alkyl chains – Self-assembly in aqueous solution. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Atanase L, Desbrieres J, Riess G. Micellization of synthetic and polysaccharides-based graft copolymers in aqueous media. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.06.001] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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19
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Lysenko EA, Bilan RS, Chelushkin PS. Block-copolymer micelles with a interpolyelectrolyte crown. POLYMER SCIENCE SERIES C 2017. [DOI: 10.1134/s1811238217010076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Jiang Y, Sprouse D, Laaser JE, Dhande Y, Reineke TM, Lodge TP. Complexation of Linear DNA and Poly(styrenesulfonate) with Cationic Copolymer Micelles: Effect of Polyanion Flexibility. J Phys Chem B 2017; 121:6708-6720. [DOI: 10.1021/acs.jpcb.7b03732] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yaming Jiang
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota 55455, United States
| | - Dustin Sprouse
- Department
of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Jennifer E. Laaser
- Department
of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Yogesh Dhande
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota 55455, United States
| | - Theresa M. Reineke
- Department
of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Timothy P. Lodge
- Department of Chemical Engineering & Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, Minnesota 55455, United States
- Department
of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
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21
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Polyelectrolyte behavior of copolymers of 2-deoxy-2-methacrylamido- d -glucose with cationic comonomers in water and dimethylsulfoxide solutions. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.07.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Wasserman AM, Motyakin MV, Barashkova II, Wasserman LA, Yasina LL. Spin probes in micellar and polymer self-associating systems. Russ Chem Bull 2016. [DOI: 10.1007/s11172-015-1155-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Lu Y, Ballauff M. Spherical polyelectrolyte brushes as nanoreactors for the generation of metallic and oxidic nanoparticles: Synthesis and application in catalysis. Prog Polym Sci 2016. [DOI: 10.1016/j.progpolymsci.2016.03.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Huang T, Cui Z, Ding Y, Lu X, Cai Y. The use of electrostatic association for rapid RAFT synthesis of histamine polyelectrolyte in aqueous solutions at and below 25 °C. Polym Chem 2016. [DOI: 10.1039/c5py01524c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrostatic association for rapid and quantitative synthesis of well-defined polyelectrolytes in dilute aqueous solutions at and below 25 °C.
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Affiliation(s)
- Tao Huang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design & Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Zhigang Cui
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design & Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Yi Ding
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design & Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Xinhua Lu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design & Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Yuanli Cai
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Suzhou Key Laboratory of Macromolecular Design & Precision Synthesis
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
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25
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Self-Assembly of Amphiphilic Block Copolymers in Selective Solvents. FLUORESCENCE STUDIES OF POLYMER CONTAINING SYSTEMS 2016. [DOI: 10.1007/978-3-319-26788-3_2] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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26
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George S, Champagne-Hartley R, Deeter G, Campbell D, Reck B, Urban D, Cunningham M. Amphiphilic Block Copolymers as Stabilizers in Emulsion Polymerization: Effects of the Stabilizing Block Molecular Weight Dispersity on Stabilization Performance. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01853] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sean George
- Department
of Chemical Engineering, Queen’s University, Kingston, ON, Canada K7L 3N6
| | | | - Gary Deeter
- BASF Corporation, Wyandotte, Michigan 48192, United States
| | - Dave Campbell
- BASF Corporation, Wyandotte, Michigan 48192, United States
| | | | | | - Michael Cunningham
- Department
of Chemical Engineering, Queen’s University, Kingston, ON, Canada K7L 3N6
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27
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Riemer S, Prévost S, Dzionara M, Appavou MS, Schweins R, Gradzielski M. Aggregation behaviour of hydrophobically modified polyacrylate – Variation of alkyl chain length. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.06.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Taresco V, Gontrani L, Crisante F, Francolini I, Martinelli A, D’Ilario L, Bordi F, Piozzi A. Self-Assembly of Catecholic Moiety-Containing Cationic Random Acrylic Copolymers. J Phys Chem B 2015; 119:8369-79. [DOI: 10.1021/acs.jpcb.5b05022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vincenzo Taresco
- Department of Chemistry and ‡Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Lorenzo Gontrani
- Department of Chemistry and ‡Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Fernanda Crisante
- Department of Chemistry and ‡Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Iolanda Francolini
- Department of Chemistry and ‡Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Andrea Martinelli
- Department of Chemistry and ‡Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Lucio D’Ilario
- Department of Chemistry and ‡Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Federico Bordi
- Department of Chemistry and ‡Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Antonella Piozzi
- Department of Chemistry and ‡Department of Physics, Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
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29
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Papagiannopoulos A, Karayianni M, Mountrichas G, Pispas S, Radulescu A. Micellar and fractal aggregates formed by two triblock terpolymers with different arrangements of one charged, one neutral hydrophilic and one hydrophobic block. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Shumyantseva VV, Sigolaeva LV, Agafonova LE, Bulko TV, Pergushov DV, Schacher FH, Archakov AI. Facilitated biosensing via direct electron transfer of myoglobin integrated into diblock copolymer/multi-walled carbon nanotube nanocomposites. J Mater Chem B 2015; 3:5467-5477. [DOI: 10.1039/c5tb00442j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sequential drop-casting of a MWCNTs suspension and a amphiphilic copolymer micellar solution onto an electrode results in a favorable nanocomposite for integration of myoglobin, showing facilitated direct electron transfer.
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Affiliation(s)
| | | | | | | | | | - Felix H. Schacher
- Institute of Organic and Macromolecular Chemistry
- Friedrich-Schiller-University Jena
- D-07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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31
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Álvarez-Paino M, Muñoz-Bonilla A, López-Fabal F, Gómez-Garcés JL, Heuts JPA, Fernández-García M. Functional surfaces obtained from emulsion polymerization using antimicrobial glycosylated block copolymers as surfactants. Polym Chem 2015. [DOI: 10.1039/c5py00776c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Antimicrobial surfaces were obtained from latex particles stabilized with amphiphilic block copolymer surfactants containing both quaternary ammonium and carbohydrate groups.
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Affiliation(s)
- Marta Álvarez-Paino
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)
- 28006 Madrid
- Spain
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
| | - Alexandra Muñoz-Bonilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)
- 28006 Madrid
- Spain
- Departamento de Química Física Aplicada
- Facultad de Ciencias
| | | | | | - Johan P. A. Heuts
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
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32
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Vyhnalkova R, Müller AHE, Eisenberg A. Control of morphology and corona composition in aggregates of mixtures of PS-b-PAA and PS-b-P4VP diblock copolymers: effects of solvent, water content, and mixture composition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13152-13163. [PMID: 25196970 DOI: 10.1021/la5028527] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The morphologies and corona compositions in aggregates of mixtures of PS-b-PAA and PS-b-P4VP diblock copolymers are influenced by controllable assembly parameters such as water content, block copolymer molar ratios, and solvent effects as well as the hydrophilic block lengths and block length ratios. All these factors can affect the morphology of the aggregates as well as their corona composition, the latter especially in vesicles, where two interfaces are involved. The morphologies and corona compositions of the aggregates were investigated by transmission electron microscopy and electrophoretic mobility, respectively. They depend, to a large extent, on the solubility of P4VP and PAA in the given organic solvent (e.g., DMF, THF, or dioxane), which influences the coil dimensions of the hydrophilic chains. The water content affects both the size and the shape of the block copolymer aggregates as well as the corona composition. Water acts as a precipitant for the hydrophobic block in the common solvent and, therefore, its progressive addition to the solution changes the interaction parameter with the hydrophobic block. The block copolymer molar ratio has an effect on both the morphology and the corona composition of the aggregates. With increasing PS-b-P4VP content in the mixture, the morphology transforms gradually from large compound micelles (LCMs), through coexistence of LCMs and small spherical micelles (SSMs), and eventually to vesicles. As expected, the corona composition of the aggregates is also affected by the block copolymer molar ratio, and changes progressively from pure PAA to a mixture of PAA and P4VP and to pure P4VP with increasing PS-b-P4VP content. It is clear that the use of mixtures of the soluble chains offers the opportunity of fine-tuning the corona composition in block copolymer aggregates under assembly conditions.
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Affiliation(s)
- Renata Vyhnalkova
- Department of Chemistry, McGill University , Otto Maass Building, 801 Sherbrooke St. W., Montréal, Québec H3A 2K6, Canada
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33
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Savoji MT, Strandman S, Zhu XX. Invertible vesicles and micelles formed by dually-responsive diblock random copolymers in aqueous solutions. SOFT MATTER 2014; 10:5886-5893. [PMID: 25017923 DOI: 10.1039/c4sm01049c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Dually responsive diblock random copolymers poly(nPA0.8-co-DEAEMA0.2)-block-poly(nPA0.8-co-EA0.2) were made from N-n-propylacrylamide (nPA), 2-(diethylamino)ethyl methacrylate (DEAEMA) and N-ethylacrylamide (EA) via reversible addition-fragmentation chain transfer (RAFT) polymerization. Copolymers of different block length ratios, poly(nPA28-co-DEAEMA7)-block-poly(nPA29-co-EA7) (P1) and poly(nPA28-co-DEAEMA7)-block-poly(nPA70-co-EA18) (P2), self-assemble into vesicles and micelles, responding to external stimuli in aqueous solutions, and both show "schizophrenic" inversion behavior when the pH and temperature are varied. The relative lengths of the two blocks are shown to affect the self-assembly of amphiphilic diblock copolymers. P1 has a similar length for both blocks and forms spherical vesicles with the first block poly(nPA29-co-EA7) as the membrane inner layer at pH 7 and 37 °C (above the cloud point of the more hydrophobic block, CP1), while spherical micelle-like aggregates are obtained at pH 10 and 25 °C (above CP1) with the second block poly(nPA28-co-DEAEMA7) as the core. In comparison, P2 has a different block length ratio (1 : 3, thus a much longer second block) and forms spherical micelles above CP1 at both pH 7 (the second block as the core) and pH 10 (the first block as the core). Further aggregation was observed by heating the polymer solution above the cloud point of the more hydrophilic block (CP2). The variation of the length and chemical composition of the blocks allows the tuning of the responsiveness of the block copolymers toward both pH and temperature and determines the formation of either micelles or vesicles during the aggregation.
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Affiliation(s)
- Mohammad T Savoji
- Department of Chemistry, Université de Montréal, CP 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada
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34
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Roy SG, De P. pH responsive polymers with amino acids in the side chains and their potential applications. J Appl Polym Sci 2014. [DOI: 10.1002/app.41084] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Saswati Ghosh Roy
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur-741252 Nadia, West Bengal India
| | - Priyadarsi De
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur-741252 Nadia, West Bengal India
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35
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Rymarczyk-Machał M, Szafraniec J, Zapotoczny S, Nowakowska M. Photoactive graft amphiphilic polyelectrolyte: Facile synthesis, intramolecular aggregation and photosensitizing activity. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.03.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Vyhnalkova R, Müller AHE, Eisenberg A. Control of corona composition and morphology in aggregates of mixtures of PS-b-PAA and PS-b-P4VP diblock copolymers: effects of pH and block length. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:5031-5040. [PMID: 24725167 DOI: 10.1021/la500712b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The corona compositions and morphologies in aggregates of mixtures of amphiphilic polystyrene-block-poly(acrylic acid) (PS-b-PAA) and polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) diblock copolymers are influenced by controllable assembly parameters such as the hydrophilic block length and solution pH. The morphologies and corona compositions of the aggregates were investigated by transmission electron microscopy and electrophoretic mobility, respectively. When mineral acids or bases are present during aggregate formation, they can exert a strong influence on the corona composition. Morphology changes were also seen with changing pH, as well as changes in corona composition, specifically for vesicles. Because of complications introduced by the presence of ions, the general hypothesis that the external corona of the vesicles is composed of the longer chains, while the shorter chains form the inner corona, which is valid only in mixtures containing only nonionic chains without any additives (no acids or bases) or within a well-defined narrow pH range. In addition to the numerical block lengths and the pH, the solubility of the hydrophilic blocks can also influence the morphology and as well as the interfacial composition of vesicles; as the numerically longer chains become less soluble, they can contract and move to the interior, while the numerically shorter but more soluble chains go to the external corona. A remarkable morphological feature of the pH continuum is that for some compositions vesicles are observed in four distinct pH regions, separated by pH ranges in which other morphologies dominate. The effect of pH and microion content on coil dimensions of the PVP and PAA chains in the block copolymers is most likely responsible for the observed behavior.
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Affiliation(s)
- Renata Vyhnalkova
- Department of Chemistry, McGill University , Otto Maass Building, 801 Sherbrooke Street West, Montréal, Québec, Canada H3A 2K6
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37
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Sigolaeva LV, Günther U, Pergushov DV, Gladyr SY, Kurochkin IN, Schacher FH. Sequential pH-Dependent Adsorption of Ionic Amphiphilic Diblock Copolymer Micelles and Choline Oxidase Onto Conductive Substrates: Toward the Design of Biosensors. Macromol Biosci 2014; 14:1039-51. [DOI: 10.1002/mabi.201300580] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 02/24/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Larisa V. Sigolaeva
- Department of Chemistry; Lomonosov Moscow State University; 119991 Moscow Russia
| | - Ulrike Günther
- Institute of Organic and Macromolecular Chemistry; Friedrich-Schiller-University Jena; D-07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich-Schiller-University Jena; D-07743 Jena Germany
| | - Dmitry V. Pergushov
- Department of Chemistry; Lomonosov Moscow State University; 119991 Moscow Russia
| | - Snezhana Yu. Gladyr
- Department of Chemistry; Lomonosov Moscow State University; 119991 Moscow Russia
| | - Ilya N. Kurochkin
- Department of Chemistry; Lomonosov Moscow State University; 119991 Moscow Russia
| | - Felix H. Schacher
- Institute of Organic and Macromolecular Chemistry; Friedrich-Schiller-University Jena; D-07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich-Schiller-University Jena; D-07743 Jena Germany
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38
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Teng W, Huang Z, Chen Y, Wang L, Wang Q, Huang H. pVEGF-loaded lipopolysaccharide-amine nanopolymersomes for therapeutic angiogenesis. NANOTECHNOLOGY 2014; 25:065702. [PMID: 24434195 DOI: 10.1088/0957-4484/25/6/065702] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Therapeutic angiogenesis via gene delivery is promising for tissue survival and regeneration after injury or ischemia. A stable, safe and efficient gene vector is essential for successful angiogenesis. We have demonstrated that our newly developed lipopolysaccharide-amine nanopolymersomes (LNPs) have higher than 95% transfection efficiency when delivering pEGFP into mesenchymal stem cells (MSCs). To explore their clinical potential in therapeutic angiogenesis, in this study, we studied their toxicity, storage stability, protection ability to genes and efficacy to deliver therapeutic genes of pVEGF in MSCs and zebrafish. The results show that LNPs can condense pVEGF to form pVEGF-loaded nanopolymersomes (VNPs), and protect pVEGF against DNase digestion in 6 h. Both LNPs and VNPs have low toxicity to MSCs, erythrocytes and zebrafish embryos. LNPs are stable at 4 °C for at least two years with unchanged size and transfection efficiency. MSCs transfected by VNPs continuously synthesize VEGF for at least four days under control, with a peak (21.25 ng ml(-1)) ∼35-fold greater than that for the untreated group. VNPs induce significant and dose-dependent angiogenesis in zebrafish without causing death, deformity or delay in growth and development, and the induced maximal vessel area of subintestinal vessel plexus is 2.5-fold higher than that for the untreated group. Our study suggests that VNP has high potential in therapeutic angiogenesis.
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Affiliation(s)
- Wei Teng
- Hospital of Stomatology, Institute of Stomatological Research, Guanghua School of Stomatology,Sun Yat-sen University, Guangdong 510600, People's Republic of China
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39
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Guo L, Jiang Y, Chen S, Qiu T, Li X. Self-Assembly of Poly(methacrylic acid)-b-poly(butyl acrylate) Amphiphilic Block Copolymers in Methanol via RAFT Polymerization and during Film Formation for Wrinkly Surface Pattern. Macromolecules 2013. [DOI: 10.1021/ma402167d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Longhai Guo
- College of Materials Science
and Engineering, State Key Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, Beijing Engineering Research Center of Synthesis
and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yongjing Jiang
- College of Materials Science
and Engineering, State Key Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, Beijing Engineering Research Center of Synthesis
and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Siyu Chen
- College of Materials Science
and Engineering, State Key Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, Beijing Engineering Research Center of Synthesis
and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Teng Qiu
- College of Materials Science
and Engineering, State Key Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, Beijing Engineering Research Center of Synthesis
and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xiaoyu Li
- College of Materials Science
and Engineering, State Key Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers,
Ministry of Education, Beijing Engineering Research Center of Synthesis
and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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40
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Aggregation behavior of polystyrene-based amphiphilic diblock copolymers in organic media. Polym J 2013. [DOI: 10.1038/pj.2013.80] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Osawa K, Imae T, Ujihara M, Harada A, Ochi K, Ishihara K, Yusa SI. Preparation of amphiphilic diblock copolymers with pendant hydrophilic phosphorylcholine and hydrophobic dendron groups and their self-association behavior in water. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26921] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kazuki Osawa
- Department of Materials Science and Chemistry; University of Hyogo; 2167 Shosha Himeji Hyogo 671-2280 Japan
| | - Toyoko Imae
- Graduate Institute of Applied Science and Technology and Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Masaki Ujihara
- Graduate Institute of Applied Science and Technology and Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Atsushi Harada
- Department of Applied Chemistry, Graduate School of Engineering; Osaka Prefecture University; 1-1 Gakuen-cho, Naka-ku, Sakai Osaka 599-8531 Japan
| | - Kanako Ochi
- Department of Applied Chemistry, Graduate School of Engineering; Osaka Prefecture University; 1-1 Gakuen-cho, Naka-ku, Sakai Osaka 599-8531 Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering and Department of Bioengineering, School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Shin-ichi Yusa
- Department of Materials Science and Chemistry; University of Hyogo; 2167 Shosha Himeji Hyogo 671-2280 Japan
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42
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Tan Q, Shu X, Yi J, Zhang HL. Electric field-induced stretch of pyrene-labeled diblock weak polyelectrolyte in dilute solution monitored by steady-state fluorescence. J Appl Polym Sci 2013. [DOI: 10.1002/app.38758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Aarne N, Laine J, Hänninen T, Rantanen V, Seitsonen J, Ruokolainen J, Kontturi E. Controlled hydrophobic functionalization of natural fibers through self-assembly of amphiphilic diblock copolymer micelles. CHEMSUSCHEM 2013; 6:1203-1208. [PMID: 23687082 DOI: 10.1002/cssc.201300218] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Indexed: 06/02/2023]
Abstract
The functionalization of natural fibers is an important task that has recently received considerable attention. We investigated the formation of a hydrophobic layer from amphiphilic diblock copolymer micelles [polystyrene-block-poly(N-methyl-4-vinyl pyridinium iodide)] on natural fibers and on a model surface (mica). A series of micelles were prepared. The micelles were characterized by using cryoscopic TEM and light scattering, and their hydrophobization capability was studied through contact angle measurements, water adsorption, and Raman imaging. Mild heat treatment (130 °C) was used to increase the hydrophobization capability of the micelles. The results showed that the micelles could not hydrophobize a model surface, but could render the natural fibers water repellent both with and without heat treatment. This effect was systematically studied by varying the composition of the constituent blocks. The results showed that the micelle size (and the molecular weight of the constituent diblock copolymers) was the most important parameter, whereas the cationic (hydrophilic) part played only a minor role. We hypothesized that the hydrophobization effect could be attributed to a combination of the micelle size and the shrinkage of the natural fibers upon drying. The shrinking caused the roughness to increase on the fiber surface, which resulted in a rearrangement of the self- assembled layer in the wet state. Consequently, the fibers became hydrophobic through the roughness effects at multiple length scales. Mild heat treatment melted the micelle core and decreased the minimum size necessary for hydrophobization.
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Affiliation(s)
- Niko Aarne
- Department of Forest Products Technology, School of Chemical Technology, Aalto University, Aalto, Finland
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Rumyantsev AM, Kramarenko EY. Effect of ion pair formation on the structure of polymer micelles with ionic amphiphilic coronae. J Chem Phys 2013; 138:204904. [DOI: 10.1063/1.4807005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Atta AM. Surface-active amphiphilic poly[(2-acrylamido-2-methylpropanesulfonic acid)-co
-(N
-isopropylacrylamide)] nanoparticles as stabilizer in aqueous emulsion polymerization. POLYM INT 2013. [DOI: 10.1002/pi.4537] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ayman M Atta
- King Saud University; Chemistry department, College of science; PO Box 2455 Riyadh - 11451 Saudi Arabia
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Advanced Functional Structures Based on Interpolyelectrolyte Complexes. ADVANCES IN POLYMER SCIENCE 2013. [DOI: 10.1007/12_2012_182] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Micellization of pH-stimulable poly(2-vinylpyridine)-b-poly(ethylene oxide) copolymers and their complexation with anionic surfactants. J Colloid Interface Sci 2013; 395:190-7. [PMID: 23390984 DOI: 10.1016/j.jcis.2012.12.058] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Revised: 12/22/2012] [Accepted: 12/24/2012] [Indexed: 01/15/2023]
Abstract
The micellization behavior was examined for a series of 3 pH-stimulable poly(2-vinylpyridine)-b-poly(ethylene oxide) (P2VP-b-PEO) copolymers, with a constant composition of 67.5±1.5wt% PEO and increasing molecular weight. The micellar characteristics were determined by dynamic, static and electrophoretic light scattering, fluorescence spectroscopy, as well as by (1)H NMR in the pH range of 2-7 and in the presence or in the absence of the anionic surfactant sodium dodecylsulfate (SDS). In the absence of SDS, two pH regimes were investigated. For the pH range below 5, the micellar characteristics, such as C.M.C., particle size and zeta potential, were determined. For the first time, it could be shown that the micellization range could be extended to low pH values for relatively high copolymer concentrations. Above pH 5, correlations between the molecular characteristics and the aggregation number as well as the hydrodynamic diameter were established. A fair agreement could be demonstrated with the theoretical predictions for star-like micelles having a P2VP core and a PEO corona. Another original aspect of these double hydrophilic copolymers is their complex formation by electrostatic interaction between the protonated P2VP and SDS. At low pH and low copolymer concentrations, where only protonated unimers are present, the SDS induces the micellization at a given neutralization degree (DN). The process of complex formation was analyzed as a function of DN and pH by DLS, fluorescence spectroscopy, zeta potential measurements and by (1)H NMR, this last technique providing information on the mobility of the P2VP/SDS micellar core. A model for the micelle formation mechanism was suggested.
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Lysenko EA, Kulebyakina AI, Chelushkin PS, Rumyantsev AM, Kramarenko EY, Zezin AB. Polymer micelles with hydrophobic core and ionic amphiphilic corona. 1. Statistical distribution of charged and nonpolar units in corona. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:17108-17117. [PMID: 23137284 DOI: 10.1021/la3026039] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Polymer micelles with hydrophobic polystyrene (PS) core and ionic amphiphilic corona from charged N-ethyl-4-vinylpyridinium bromide (EVP) and uncharged 4-vinylpyridine (4VP) units spontaneously self-assembled from PS-block-poly(4VP-stat-EVP) macromolecules in mixed dimethylformamide/methanol/water solvent. The fraction of statistically distributed EVP units in corona-forming block is β = [EVP]/([EVP]+[4VP]) = 0.3-1. Micelles were transferred into water via dialysis technique, and pH was adjusted to 9, where 4VP is insoluble. Structural characteristics of micelles were investigated both experimentally and theoretically as a function of corona composition β. Methods of dynamic and static light scattering, electrophoretic mobility measurements, sedimentation velocity, transmission electron microscopy, and UV spectrophotometry were applied. All micelles possessed spherical morphology. The aggregation number, structure, and electrophoretic mobility of micelles changed in a jumplike manner near β ~ 0.6-0.75. Below and above this region, micelle characteristics were constant or insignificantly changed upon β. Theoretical dependencies for micelle aggregation number, corona dimensions, and fraction of small counterions outside corona versus β were derived via minimization the micelle free energy, taking into account surface, volume, electrostatic, and elastic contributions of chain units and translational entropy of mobile counterions. Theoretical estimations also point onto a sharp structural transition at a certain corona composition. The abrupt reorganization of micelle structure at β ~ 0.6-0.75 entails dramatic changes in micelle dispersion stability in the presence of NaCl or in the presence of oppositely charged polymeric (sodium polymethacrylate) or amphiphilic (sodium dodecyl sulfate) complexing agents.
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Affiliation(s)
- Evgeny A Lysenko
- Chair of Polymer Sciences, Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia.
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Lysenko EA, Kulebyakina AI, Chelushkin PS, Rumyantsev AM, Kramarenko EY, Zezin AB. Polymer micelles with hydrophobic core and ionic amphiphilic corona. 2. Starlike distribution of charged and nonpolar blocks in corona. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12663-12670. [PMID: 22846072 DOI: 10.1021/la302606a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Mixed polymer micelles with hydrophobic polystyrene (PS) core and ionic amphiphilic poly(4-vinylpyridine)/poly(N-ethyl-4-vinylpyridinium bromide) corona (P4VP/PEVP) spontaneously self-assembled from mixtures of PS-b-PEVP and PS-b-P4VP macromolecules in dimethylformamide/methanol/water selective solvent. The fraction of PEVP units in corona was β = [PEVP]/([PEVP] + [P4VP]) = 0.05-1.0. Micelles were transferred into pure water via dialysis technique and pH was adjusted to 9, where P4VP blocks are insoluble. Structural characteristics of micelles as a function of corona composition β were investigated. Methods of dynamic and static light scattering, electrophoretic mobility measurements, sedimentation velocity, transmission electron microscopy, and UV spectrophotometry were applied. Spherical morphology with core (PS)-shell (P4VP)-corona (PEVP) organization was postulated. Micelles demonstrated a remarkable inflection in structural characteristics near β ~ 0.5-0.7. Above this region, aggregation number (m), core and corona radii of mixed micelles coincided with those of individual PS-b-PEVP micelles. When β decreased below 0.5, dramatic growth of aggregation number was observed, accompanied by growth in micelle size and stretching PEVP chains. At β below 0.2, dispersions of mixed micelles were unstable and easily precipitated upon addition of NaCl. Scaling relationships between micelle characteristics and β were obtained via minimization the micelle free energy, taking into account electrostatic, osmotic, volume, and surface contributions. Theoretical estimations predicted dramatic influence of β on aggregation number, m ~ β(-3). This result is in general agreement with experimental data and confirms the correctness of the core-shell-corona model. The inflection in micelle characteristics entails drastic changes in micelle dispersion stability in the presence of oppositely charged polymeric (sodium polymethacrylate) or amphiphilic (sodium dodecyl sulfate) complexing agents.
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Affiliation(s)
- Evgeny A Lysenko
- Chair of Polymer Sciences, Department of Chemistry, MV Lomonosov Moscow State University, Moscow 119991, Russia.
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Mori H, Endo T. Amino-Acid-Based Block Copolymers by RAFT Polymerization. Macromol Rapid Commun 2012; 33:1090-107. [DOI: 10.1002/marc.201100887] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 02/19/2012] [Indexed: 12/21/2022]
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