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Smirnov MA, Vorobiov VK, Fedotova VS, Sokolova MP, Bobrova NV, Smirnov NN, Borisov OV. A Polyelectrolyte Colloidal Brush Based on Cellulose: Perspectives for Future Applications. Polymers (Basel) 2023; 15:4526. [PMID: 38231953 PMCID: PMC10708233 DOI: 10.3390/polym15234526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/10/2023] [Accepted: 11/22/2023] [Indexed: 01/19/2024] Open
Abstract
This feature article is devoted to the evaluation of different techniques for producing colloidal polyelectrolyte brushes (CPEBs) based on cellulose nanofibers modified with grafted polyacrylates. The paper also reviews the potential applications of these CPEBs in designing electrode materials and as reinforcing additives. Additionally, we discuss our own perspectives on investigating composites with CPEBs. Herein, polyacrylic acid (PAA) was grafted onto the surface of cellulose nanofibers (CNFs) employing a "grafting from" approach. The effect of the PAA shell on the morphological structure of a composite with polypyrrole (PPy) was investigated. The performance of as-obtained CNF-PAA/PPy as organic electrode material for supercapacitors was examined. Furthermore, this research highlights the ability of CNF-PAA filler to act as an additional crosslinker forming a physical sub-network due to the hydrogen bond interaction inside chemically crosslinked polyacrylamide (PAAm) hydrogels. The enhancement of the mechanical properties of the material with a concomitant decrease in its swelling ratio compared to a pristine PAAm hydrogel was observed. The findings were compared with the recent theoretical foundation pertaining to other similar materials.
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Affiliation(s)
- Michael A. Smirnov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia; (V.K.V.); (V.S.F.); (M.P.S.); (N.V.B.); (N.N.S.)
| | - Vitaly K. Vorobiov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia; (V.K.V.); (V.S.F.); (M.P.S.); (N.V.B.); (N.N.S.)
| | - Veronika S. Fedotova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia; (V.K.V.); (V.S.F.); (M.P.S.); (N.V.B.); (N.N.S.)
| | - Maria P. Sokolova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia; (V.K.V.); (V.S.F.); (M.P.S.); (N.V.B.); (N.N.S.)
| | - Natalya V. Bobrova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia; (V.K.V.); (V.S.F.); (M.P.S.); (N.V.B.); (N.N.S.)
| | - Nikolay N. Smirnov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia; (V.K.V.); (V.S.F.); (M.P.S.); (N.V.B.); (N.N.S.)
| | - Oleg V. Borisov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia; (V.K.V.); (V.S.F.); (M.P.S.); (N.V.B.); (N.N.S.)
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux (IPREM), UMR 5254 CNRS/UPPA, 64053 Pau, France
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Prosvirnina AP, Bugrov AN, Bobrova NV, Sivtsov EV, Nikolaeva AL, Kamalov AM, Sokolova MP, Smirnov MA. Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers. Polymers (Basel) 2023; 15:3547. [PMID: 37688173 PMCID: PMC10490119 DOI: 10.3390/polym15173547] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/18/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Inks for 3D printing were prepared by dispersing bacterial cellulose nanofibers (CNF) functionalized with methacrylate groups in a polymerizable deep eutectic solvent (DES) based on choline chloride and acrylic acid with water as a cosolvent. After 3D printing and UV-curing, the double-network composite gel consisting of chemically and physically crosslinked structures composed from sub-networks of modified CNF and polymerized DES, respectively, was formed. The rheological properties of inks, as well as mechanical and shape memory properties of the 3D-printed gels, were investigated in dynamic and static modes. It was shown that the optimal amount of water allows improvement of the mechanical properties of the composite gel due to the formation of closer contacts between the modified CNF. The addition of 12 wt% water results in an increase in strength and ultimate elongation to 11.9 MPa and 300%, respectively, in comparison with 5.5 MPa and 100% for an anhydrous system. At the same time, the best shape memory properties were found for an anhydrous system: shape fixation and recovery coefficients were 80.0 and 95.8%, respectively.
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Affiliation(s)
- Angelina P. Prosvirnina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg 199004, Russia
| | - Alexander N. Bugrov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg 199004, Russia
- Department of Physical Chemistry, Saint Petersburg Electrotechnical University (ETU “LETI”), ul. Professora Popova 5, Saint Petersburg 197022, Russia
| | - Natalya V. Bobrova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg 199004, Russia
| | - Eugene V. Sivtsov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg 199004, Russia
- Saint Petersburg State Institute of Technology, Moskovsky Pr. 24-26/49, Saint Petersburg 190013, Russia
| | - Alexandra L. Nikolaeva
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg 199004, Russia
| | - Almaz M. Kamalov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg 199004, Russia
| | - Maria P. Sokolova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg 199004, Russia
| | - Michael A. Smirnov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy Pr. 31, Saint Petersburg 199004, Russia
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Nikolaeva AL, Bugrov AN, Sokolova MP, Kuntsman IV, Vlasova EN, Ivan'kova EM, Abalov IV, Gofman IV. Synergistic Effect of Metal Oxide and Carbon Nanoparticles on the Thermal and Mechanical Properties of Polyimide Composite Films. Polymers (Basel) 2023; 15:polym15102298. [PMID: 37242873 DOI: 10.3390/polym15102298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
In this paper, we report on novel polyimide (PI) nanocomposites filled with binary mixtures of metal oxide (either TiO2 or ZrO2) nanoparticles and nanocarbon (either carbon nanofibers (CNFs) or functionalized carbon nanotubes (CNTfs)). The structure and morphology of the materials obtained were comprehensively studied. An exhaustive investigation of their thermal and mechanical properties was performed. We revealed a synergistic effect of the nanoconstituents with regard to a number of functional characteristics of the PIs compared with single-filler nanocomposites, including thermal stability, stiffness (below and above glass transition temperature), yield point, and temperature of flowing. Moreover, the possibility of manipulating the properties of the materials by choosing a proper combination of the nanofillers was demonstrated. The results obtained can become a platform in the design of PI-based engineering materials with tailored characteristics capable of operating in extreme conditions.
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Affiliation(s)
- Alexandra L Nikolaeva
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Alexander N Bugrov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
- Department of Physical Chemistry, Saint Petersburg Electrotechnical University (ETU "LETI"), ul. Professora Popova 5, 197022 St. Petersburg, Russia
| | - Maria P Sokolova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Igor V Kuntsman
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Elena N Vlasova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Elena M Ivan'kova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Ivan V Abalov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
| | - Iosif V Gofman
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia
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Fedotova VS, Sokolova MP, Vorobiov VK, Sivtsov EV, Lukasheva NV, Smirnov MA. Water Influence on the Physico-Chemical Properties and 3D Printability of Choline Acrylate-Bacterial Cellulose Inks. Polymers (Basel) 2023; 15:polym15092156. [PMID: 37177302 PMCID: PMC10181127 DOI: 10.3390/polym15092156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
The aim of this work was to study the influence of water as a co-solvent on the interaction between a polymerizable ionic liquid-choline acrylate (ChA)-and bacterial cellulose. Bacterial cellulose dispersed in ChA is a new type of UV-curable biopolymer-based ink that is a prospective material for the 3D printing of green composite ion-gels. Higher cellulose content in inks is beneficial for the ecological and mechanical properties of materials, and leads to increased viscosity and the yield stress of such systems and hampers printability. It was found that the addition of water results in (1) a decrease in the solvent viscosity and yield stress; and (2) a decrease in the stability of dispersion toward phase separation under stress. In this work, an optimal composition in the range of 30-40 wt% water content demonstrating 97-160 Pa of yield stress was found that ensures the printability and stability of inks. The rheological properties of inks and mechanical characteristics (0.7-0.8 MPa strength and 1.1-1.2 MPa Young's modulus) were obtained. The mechanism of influence of the ratio ChA/water on the properties of ink was revealed with atomic force microscopy, wide-angle X-ray diffraction studies of bacterial cellulose after regeneration from solvent, and computer simulation of ChA/water mixtures and their interaction with the cellulose surface.
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Affiliation(s)
- Veronika S Fedotova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
| | - Maria P Sokolova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
| | - Vitaly K Vorobiov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
| | - Eugene V Sivtsov
- Saint Petersburg State Institute of Technology, Moskovsky Prospekt 24-26/49, 190013 St. Petersburg, Russia
| | - Natalia V Lukasheva
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
| | - Michael A Smirnov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
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Fedotova VS, Sokolova MP, Vorobiov VK, Sivtsov EV, Ribeiro MCC, Smirnov MA. Synthesis and Physicochemical Properties of Acrylate Anion Based Ionic Liquids. Polymers (Basel) 2022; 14:polym14235148. [PMID: 36501542 PMCID: PMC9736722 DOI: 10.3390/polym14235148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/16/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022] Open
Abstract
Two polymerizable ionic liquids (or monomeric ionic liquids, mILs) namely 1-butyl-3-methylimidazolium and choline acrylates ([C4mim]A and ChA, respectively) were synthesized using the modified Fukumoto method from corresponding chlorides. The chemical structure of the prepared mILs was confirmed with FTIR and NMR study. Investigation of the thermal properties with DSC demonstrates that both mILs have a Tg temperature of about 180 K and a melting point around 310 K. It was shown that the temperature dependence of FTIR confirm the Tg to be below 200. Both mILs exhibited non-Newtonian shear thinning rheological behavior at shear rates >4 s−1. It was shown that [C4mim]A is able to dissolve bacterial cellulose (BC) leading to a decrease in its degree of polymerization and recrystallisation upon regeneration with water; although in the ChA, the crystalline structure and nanofibrous morphology of BC was preserved. It was demonstrated that the thixotropic and rheological properties of cellulose dispersion in ChA at room temperature makes this system a prospective ink for 3D printing with subsequent UV-curing. The 3D printed filaments based on ChA, containing 2 wt% of BC, and 1% of N,N′-methylenebisacrylamide after radical polymerization induced with 1% 2-hydroxy-2-methylpropiophenone, demonstrated Young’s modulus 7.1 ± 1.0 MPa with 1.2 ± 0.1 MPa and 40 ± 5% of strength and ultimate elongation, respectively.
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Affiliation(s)
- Veronika S. Fedotova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
| | - Maria P. Sokolova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
- Correspondence: (M.P.S.); (M.A.S.)
| | - Vitaliy K. Vorobiov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
| | - Eugene V. Sivtsov
- Saint Petersburg State Institute of Technology, Moskovsky Prospekt 24-26/49, 190013 St. Petersburg, Russia
| | - Mauro C. C. Ribeiro
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo 05513-970, Brazil
| | - Michael A. Smirnov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russia
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, Peterhof, 198504 St. Petersburg, Russia
- Correspondence: (M.P.S.); (M.A.S.)
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Nikolaeva AL, Bugrov AN, Sokolova MP, Ivan’kova EM, Abalov IV, Vlasova EN, Gofman IV. Metal Oxide Nanoparticles: An Effective Tool to Modify the Functional Properties of Thermally Stable Polyimide Films. Polymers (Basel) 2022; 14:polym14132580. [PMID: 35808624 PMCID: PMC9269602 DOI: 10.3390/polym14132580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 11/16/2022] Open
Abstract
A series of polyimide/metal oxide (either ZrO2 or TiO2) nanocomposite films were fabricated based on two polymer matrices. The prepared films were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray diffraction analysis (XRD), and their thermal and mechanical properties were investigated with the use of thermogravimetric (TGA), differential thermal analysis (DTA), and thermomechanical analysis (TMA). We have found out that functional properties of the obtained materials are determined by a number of factors, not only the type, size, surface functionality, and concentration of the nanofiller, but also the chemical structure of the matrix polyimide. We have demonstrated some trends in the thermal and mechanical behavior of the materials depending on these features. The data could be of great interest in the areas where new materials with improved functional characteristics are needed.
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Affiliation(s)
- Alexandra L. Nikolaeva
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.N.B.); (M.P.S.); (E.M.I.); (I.V.A.); (E.N.V.); (I.V.G.)
- Correspondence:
| | - Alexander N. Bugrov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.N.B.); (M.P.S.); (E.M.I.); (I.V.A.); (E.N.V.); (I.V.G.)
- Department of Physical Chemistry, Saint Petersburg Electrotechnical University (ETU “LETI”), ul. Professora Popova 5, 197022 St. Petersburg, Russia
| | - Maria P. Sokolova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.N.B.); (M.P.S.); (E.M.I.); (I.V.A.); (E.N.V.); (I.V.G.)
| | - Elena M. Ivan’kova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.N.B.); (M.P.S.); (E.M.I.); (I.V.A.); (E.N.V.); (I.V.G.)
| | - Ivan V. Abalov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.N.B.); (M.P.S.); (E.M.I.); (I.V.A.); (E.N.V.); (I.V.G.)
| | - Elena N. Vlasova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.N.B.); (M.P.S.); (E.M.I.); (I.V.A.); (E.N.V.); (I.V.G.)
| | - Iosif V. Gofman
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 St. Petersburg, Russia; (A.N.B.); (M.P.S.); (E.M.I.); (I.V.A.); (E.N.V.); (I.V.G.)
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Smirnov MA, Fedotova VS, Sokolova MP, Nikolaeva AL, Elokhovsky VY, Karttunen M. Polymerizable Choline- and Imidazolium-Based Ionic Liquids Reinforced with Bacterial Cellulose for 3D-Printing. Polymers (Basel) 2021; 13:3044. [PMID: 34577946 PMCID: PMC8471885 DOI: 10.3390/polym13183044] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/04/2021] [Accepted: 09/06/2021] [Indexed: 11/23/2022] Open
Abstract
In this work, a novel approach is demonstrated for 3D-printing of bacterial cellulose (BC) reinforced UV-curable ion gels using two-component solvents based on 1-butyl-3-methylimidazolium chloride or choline chloride combined with acrylic acid. Preservation of cellulose's crystalline and nanofibrous structure is demonstrated using wide-angle X-ray diffraction (WAXD) and atomic force microscopy (AFM). Rheological measurements reveal that cholinium-based systems, in comparison with imidazolium-based ones, are characterised with lower viscosity at low shear rates and improved stability against phase separation at high shear rates. Grafting of poly(acrylic acid) onto the surfaces of cellulose nanofibers during UV-induced polymerization of acrylic acid results in higher elongation at break for choline chloride-based compositions: 175% in comparison with 94% for imidazolium-based systems as well as enhanced mechanical properties in compression mode. As a result, cholinium-based BC ion gels containing acrylic acid can be considered as more suitable for 3D-printing of objects with improved mechanical properties due to increased dispersion stability and filler/matrix interaction.
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Affiliation(s)
- Michael A. Smirnov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi pr. 31, 199004 St. Petersburg, Russia; (V.S.F.); (M.P.S.); (A.L.N.); (V.Y.E.)
- Institute of Chemistry, Saint Petersburg State University, Universitetsky pr. 26, Peterhof, 198504 St. Petersburg, Russia
| | - Veronika S. Fedotova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi pr. 31, 199004 St. Petersburg, Russia; (V.S.F.); (M.P.S.); (A.L.N.); (V.Y.E.)
- Institute of Chemistry, Saint Petersburg State University, Universitetsky pr. 26, Peterhof, 198504 St. Petersburg, Russia
| | - Maria P. Sokolova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi pr. 31, 199004 St. Petersburg, Russia; (V.S.F.); (M.P.S.); (A.L.N.); (V.Y.E.)
| | - Alexandra L. Nikolaeva
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi pr. 31, 199004 St. Petersburg, Russia; (V.S.F.); (M.P.S.); (A.L.N.); (V.Y.E.)
| | - Vladimir Yu. Elokhovsky
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi pr. 31, 199004 St. Petersburg, Russia; (V.S.F.); (M.P.S.); (A.L.N.); (V.Y.E.)
| | - Mikko Karttunen
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi pr. 31, 199004 St. Petersburg, Russia; (V.S.F.); (M.P.S.); (A.L.N.); (V.Y.E.)
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, ON N6A 5B7, Canada
- Department of Physics and Astronomy, The University of Western Ontario, 1151 Richmond Street, London, ON N6A 5B7, Canada
- The Centre of Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151 Richmond Street, London, ON N6A 5B7, Canada
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Vorobiov VK, Bugrov AN, Kasatkin IA, Bolshakov SA, Sokolova MP, Smirnov NN, Smirnov MA. Effect of α-Fe2O3 nanoparticles on the mechanism of charge storage in polypyrrole-based hydrogel. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03216-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Smirnov MA, Nikolaeva AL, Vorobiov VK, Bobrova NV, Abalov IV, Smirnov AV, Sokolova MP. Ionic Conductivity and Structure of Chitosan Films Modified with Lactic Acid-Choline Chloride NADES. Polymers (Basel) 2020; 12:E350. [PMID: 32041166 PMCID: PMC7077437 DOI: 10.3390/polym12020350] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/31/2020] [Accepted: 02/02/2020] [Indexed: 01/06/2023] Open
Abstract
The natural deep eutectic solvent (NADES) based on choline chloride (ChCl) and lactic acid (LA) was used for the preparation of chitosan (CS) films by the solution casting method. The content of NADES in films was from 0 to 82 wt%. The impact of NADES on the morphology and crystalline structure of films was investigated using scanning electron microscopy as well as wide-angle and small-angle X-ray scattering. The experimental results allow to propose CS chains swelling in NADES. FTIR spectroscopy confirms the interactions between CS and NADES components via the formation of hydrogen and ion bonds. The thermal properties of the composite films were studied by simultaneous thermogravimetric and differential thermal analysis. Thermomechanical analysis demonstrated appearance of two transitions at temperatures between -23 and -5 °C and 54-102 °C depending on NADES content. It was found that electrical conductivity of film with 82 wt% of NADES reaches 1.7 mS/cm. The influence of the composition and structure of films on the charge carriers concentration and their mobility is discussed.
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Affiliation(s)
- Mikhail A. Smirnov
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Alexandra L. Nikolaeva
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Vitaly K. Vorobiov
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Natalia V. Bobrova
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Ivan V. Abalov
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Alexander V. Smirnov
- Physics and Technology Faculty, ITMO University, Kronverskii prosp. 49, Saint Petersburg 197101, Russia;
| | - Maria P. Sokolova
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
- Saint Petersburg State University, Institute of Chemistry, Universitetskaya nab. 7-9, Saint Petersburg 198504, Russia
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Sokolova MP, Bugrov AN, Smirnov MA, Smirnov AV, Lahderanta E, Svetlichnyi VM, Toikka AM. Effect of Domain Structure of Segmented Poly(urethane-imide) Membranes with Polycaprolactone Soft Blocks on Dehydration of n-Propanol via Pervaporation. Polymers (Basel) 2018; 10:E1222. [PMID: 30961147 PMCID: PMC6290592 DOI: 10.3390/polym10111222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 11/16/2022] Open
Abstract
Segmented poly(urethane-imide)s (PUIs) were synthesized by polyaddition reaction and applied for preparation of membranes. Tolylene-2,4-diisocyanate, pyromellitic dianhydride, and m-phenylenediamine for chain extension were used to form hard aromatic blocks. Polycaprolactone diols with molecular weights equal to 530 and 2000 g mol-1 were chosen as soft segments. The effect of the length of soft segments on the structure, morphology, and transport properties of segmented poly(urethane-imide) membranes were studied using atomic force microscopy, small-angle and wide-angle X-ray scattering, and pervaporation experiments. It was found that a copolymer with a shorter soft segment (530 g mol-1) consists of soft domains in a hard matrix, while the introduction of polycaprolactone blocks with higher molecular weight (2000 g mol-1) leads to the formation of hard domains in a soft matrix. Additionally, the introduction of hard segments prevents crystallization of polycaprolactone. Transport properties of membranes based on segmented PUIs containing soft segments of different length were tested for pervaporation of a model mixture of propanol/water with 20 wt % H₂O content. It was found that a membrane based on segmented PUIs containing longer soft segments demonstrates higher flux (8.8 kg μm m-2 h-1) and selectivity (179) toward water in comparison with results for pure polycaprolactone reported in literature. The membrane based on segmented PUIs with 530 g mol-1 soft segment has a lower flux (5.1 kg μm m-2 h-1) and higher selectivity (437).
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Affiliation(s)
- Maria P Sokolova
- Department of Chemical Thermodynamics & Kinetics, Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg 198504, Russia.
- Department of Physics, Lappeenranta University of Technology, Skinnarilankatu 34, 53850 Lappeenranta, Finland.
| | - Alexander N Bugrov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
- Department of Physical Chemistry, Saint Petersburg Electrotechnical University "LETI", ul. Professora Popova 5, Saint Petersburg 197376, Russian.
| | - Michael A Smirnov
- Department of Chemical Thermodynamics & Kinetics, Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg 198504, Russia.
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
| | - Alexander V Smirnov
- Faculty of Physics and Engineering, ITMO University, Kronverskiy pr. 49, Saint Petersburg 197101, Russia.
| | - Erkki Lahderanta
- Department of Physics, Lappeenranta University of Technology, Skinnarilankatu 34, 53850 Lappeenranta, Finland.
| | - Valentin M Svetlichnyi
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
| | - Alexander M Toikka
- Department of Chemical Thermodynamics & Kinetics, Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg 198504, Russia.
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Sokolova MP, Smirnov MA, Samarov AA, Bobrova NV, Vorobiov VK, Popova EN, Filippova E, Geydt P, Lahderanta E, Toikka AM. Plasticizing of chitosan films with deep eutectic mixture of malonic acid and choline chloride. Carbohydr Polym 2018; 197:548-557. [PMID: 30007646 DOI: 10.1016/j.carbpol.2018.06.037] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/06/2018] [Accepted: 06/06/2018] [Indexed: 01/27/2023]
Abstract
Chitosan (CS) films containing deep eutectic solvent (DES) based on malonic acid (MA) and choline chloride (ChCl) were successfully prepared by solution casting method by using DES content ranging from 0 to 82 wt%. A strong interaction of CS with the components of DES was demonstrated by analyses of water sorption isotherms, atomic force microscopy and FTIR results. The plasticizing effect of the MA and ChCl mixture on the CS matrix was shown by static bulk mechanical measurements, thermal analysis and quantitative nanomechanical mapping (QNM). Elongation at break increased from 3 to 62% at increase of DES content from 0 to 67 wt%, while further increase of DES content led to the decreasing of maximal elongation. Introduction of DES into CS films led to the appearance of glass transition temperature in the region +2 - -2.3 °C. QNM results indicated homogeneity of the films containing up to 75 wt% of DES.
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Affiliation(s)
- Maria P Sokolova
- Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg, 198504, Russia; Lappeenranta University of Technology, Department of Physics, Skinnarilankatu 34, Lappeenranta, 53850, Finland.
| | - Michael A Smirnov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg, 199004, Russia; ITMO University, Saint Petersburg, 197101, Russia.
| | - Artemiy A Samarov
- Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg, 198504, Russia.
| | - Natalya V Bobrova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg, 199004, Russia.
| | | | - Elena N Popova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg, 199004, Russia.
| | - Elizaveta Filippova
- Lappeenranta University of Technology, Department of Physics, Skinnarilankatu 34, Lappeenranta, 53850, Finland.
| | - Pavel Geydt
- Lappeenranta University of Technology, Department of Physics, Skinnarilankatu 34, Lappeenranta, 53850, Finland.
| | - Erkki Lahderanta
- Lappeenranta University of Technology, Department of Physics, Skinnarilankatu 34, Lappeenranta, 53850, Finland.
| | - Alexander M Toikka
- Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg, 198504, Russia.
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Sokolova MP, Smirnov MA, Bugrov AN, Geydt P, Popova EN, Lahderanta E, Svetlichnyi VM, Toikka AM. Structure of Composite Based on Polyheteroarylene Matrix and ZrO₂ Nanostars Investigated by Quantitative Nanomechanical Mapping. Polymers (Basel) 2017; 9:E268. [PMID: 30970946 PMCID: PMC6431885 DOI: 10.3390/polym9070268] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/30/2017] [Accepted: 07/02/2017] [Indexed: 12/21/2022] Open
Abstract
It is known that structure of the interface between inorganic nanoparticles and polymers significantly influences properties of a polymer⁻inorganic composite. At the same time, amount of experimental researches on the structure and properties of material near the inorganic-polymer interface is low. In this work, we report for the first time the investigation of nanomechanical properties and maps of adhesion of material near the inorganic-polymer interface for the polyheteroarylene nanocomposites based on semi-crystalline poly[4,4'-bis (4″-aminophenoxy)diphenyl]imide 1,3-bis (3',4-dicarboxyphenoxy) benzene, modified by ZrO₂ nanostars. Experiments were conducted using quantitative nanomechanical mapping (QNM) mode of atomic force microscopy (AFM) at the surface areas where holes were formed after falling out of inorganic particles. It was found that adhesion of AFM cantilever to the polymer surface is higher inside the hole than outside. This can be attributed to the presence of polar groups near ZrO₂ nanoparticle. QNM measurements revealed that polymer matrix has increased rigidity in the vicinity of the nanoparticles. Influence of ZrO₂ nanoparticles on the structure and thermal properties of semi-crystalline polyheteroarylene matrix was studied with wide-angle X-ray scattering, scanning electron microscopy, and differential scanning calorimetry.
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Affiliation(s)
- Maria P Sokolova
- Department of Chemical Thermodynamics & Kinetics, Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg 198504, Russia.
- Laboratory of Physics, Lappeenranta University of Technology, Skinnarilankatu 34, 53850 Lappeenranta, Finland.
| | - Michael A Smirnov
- Department of Chemical Thermodynamics & Kinetics, Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg 198504, Russia.
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
| | - Alexander N Bugrov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
- Department of Physical Chemistry, Saint Petersburg Electrotechnical University "LETI", ul. Professora Popova 5, St. Petersburg 197376, Russian.
| | - Pavel Geydt
- Laboratory of Physics, Lappeenranta University of Technology, Skinnarilankatu 34, 53850 Lappeenranta, Finland.
| | - Elena N Popova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
| | - Erkki Lahderanta
- Laboratory of Physics, Lappeenranta University of Technology, Skinnarilankatu 34, 53850 Lappeenranta, Finland.
| | - Valentin M Svetlichnyi
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia.
| | - Alexander M Toikka
- Department of Chemical Thermodynamics & Kinetics, Saint Petersburg State University, Universitetsky pr. 26, Peterhof, Saint Petersburg 198504, Russia.
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Penkova AV, Acquah SF, Sokolova MP, Dmitrenko ME, Toikka AM. Polyvinyl alcohol membranes modified by low-hydroxylated fullerenol C60(OH)12. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.05.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sokolova MP. [The migration phases of ascariasis as one of the causes of pneumonia accompanied by eosinophilia]. Pediatriia 1965; 44:55-8. [PMID: 5873951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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