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Bakardzhiev P, Forys A, Trzebicka B, Andreeva T, Rangelov S. Unprecedented formation of sterically stabilized phospholipid liposomes of cuboidal morphology. NANOSCALE 2021; 13:15210-15214. [PMID: 34490863 DOI: 10.1039/d1nr02856a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Sterically stabilized phospholipid liposomes of unprecedented cuboid morphology are formed upon introduction in the bilayer membrane of original polymers, based on polyglycidol bearing a lipid-mimetic residue. Strong hydrogen bonding in the polyglycidol sublayers creates attractive forces, which, facilitated by fluidization of the membrane, bring about the flattening of the bilayers and the formation of cuboid vesicles.
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Affiliation(s)
- Pavel Bakardzhiev
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St., Bl. 103-A, 1113 Sofia, Bulgaria.
| | - Aleksander Forys
- Center of Polymer and Carbon Materials, Polish Academy of Sciences, ul. M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Barbara Trzebicka
- Center of Polymer and Carbon Materials, Polish Academy of Sciences, ul. M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Tonya Andreeva
- Faculty of Applied Chemistry, Reutlingen University, Alteburgstraße 150, D-72762 Reutlingen, Germany
| | - Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St., Bl. 103-A, 1113 Sofia, Bulgaria.
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2
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Kalinova R, Valchanova M, Dimitrov I, Turmanova S, Ugrinova I, Petrova M, Vlahova Z, Rangelov S. Functional Polyglycidol-Based Block Copolymers for DNA Complexation. Int J Mol Sci 2021; 22:9606. [PMID: 34502513 PMCID: PMC8431755 DOI: 10.3390/ijms22179606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 01/04/2023] Open
Abstract
Gene therapy is an attractive therapeutic method for the treatment of genetic disorders for which the efficient delivery of nucleic acids into a target cell is critical. The present study is aimed at evaluating the potential of copolymers based on linear polyglycidol to act as carriers of nucleic acids. Functional copolymers with linear polyglycidol as a non-ionic hydrophilic block and a second block bearing amine hydrochloride pendant groups were prepared using previously synthesized poly(allyl glycidyl ether)-b-polyglycidol block copolymers as precursors. The amine functionalities were introduced via highly efficient radical addition of 2-aminoethanethiol hydrochloride to the alkene side groups. The modified copolymers formed loose aggregates with strongly positive surface charge in aqueous media, stabilized by the presence of dodecyl residues at the end of the copolymer structures and the hydrogen-bonding interactions in polyglycidol segments. The copolymer aggregates were able to condense DNA into stable and compact nanosized polyplex particles through electrostatic interactions. The copolymers and the corresponding polyplexes showed low to moderate cytotoxicity on a panel of human cancer cell lines. The cell internalization evaluation demonstrated the capability of the polyplexes to successfully deliver DNA into the cancer cells.
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Affiliation(s)
- Radostina Kalinova
- Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Miroslava Valchanova
- Department of Material Science and Technology, University “Prof. Assen Zlatarov”, 8010 Burgas, Bulgaria; (M.V.); (S.T.)
| | - Ivaylo Dimitrov
- Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Sevdalina Turmanova
- Department of Material Science and Technology, University “Prof. Assen Zlatarov”, 8010 Burgas, Bulgaria; (M.V.); (S.T.)
| | - Iva Ugrinova
- Institute of Molecular Biology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (M.P.); (Z.V.)
| | - Maria Petrova
- Institute of Molecular Biology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (M.P.); (Z.V.)
| | - Zlatina Vlahova
- Institute of Molecular Biology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (M.P.); (Z.V.)
| | - Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
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3
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Valchanova M, Yordanov Y, Tzankova V, Yoncheva K, Turmanova S, Rangelov S. Functional amphiphilic block copolyethers as carriers of caffeic acid phenethyl ester. POLYM INT 2019. [DOI: 10.1002/pi.5898] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Miroslava Valchanova
- Institute of PolymersBulgarian Academy of Sciences Sofia Bulgaria
- Department of Material Science and Technology, University ‘Prof. Assen Zlatarov’ Burgas Bulgaria
| | - Yordan Yordanov
- Department of Pharmacology, Pharmacotherapy and ToxicologyMedical University of Sofia, Faculty of Pharmacy Sofia Bulgaria
| | - Virginia Tzankova
- Department of Pharmacology, Pharmacotherapy and ToxicologyMedical University of Sofia, Faculty of Pharmacy Sofia Bulgaria
| | - Krassimira Yoncheva
- Department of Pharmaceutical Technology and BiopharmaceuticsMedical University of Sofia, Faculty of Pharmacy Sofia Bulgaria
| | - Sevdalina Turmanova
- Department of Material Science and Technology, University ‘Prof. Assen Zlatarov’ Burgas Bulgaria
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Toncheva-Moncheva N, Bakardzhiev P, Rangelov S, Trzebicka B, Forys A, Petrov PD. Linear Amphiphilic Polyglycidol/Poly(ε-caprolactone) Block Copolymers Prepared via “Click” Chemistry-Based Concept. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00366] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Natalia Toncheva-Moncheva
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St. 103A, 1113 Sofia, Bulgaria
| | - Pavel Bakardzhiev
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St. 103A, 1113 Sofia, Bulgaria
| | - Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St. 103A, 1113 Sofia, Bulgaria
| | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Aleksander Forys
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Petar D. Petrov
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St. 103A, 1113 Sofia, Bulgaria
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5
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Trimethoxysilyl end-capped hyperbranched polyglycidol/polycaprolactone copolymers for cell delivery and tissue repair: synthesis, characterisation and aqueous solution properties. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.10.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Stoyanova B, Novakov C, Tsvetanov CB, Rangelov S. Synthesis and Aqueous Solution Properties of Block Copolyethers with Latent Chemical Functionality. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Boyana Stoyanova
- Institute of Polymers; Bulgarian Academy of Sciences; Akad. G. Bonchev Str. 103-A 1113 Sofia Bulgaria
| | - Christo Novakov
- Institute of Polymers; Bulgarian Academy of Sciences; Akad. G. Bonchev Str. 103-A 1113 Sofia Bulgaria
| | - Christo B. Tsvetanov
- Institute of Polymers; Bulgarian Academy of Sciences; Akad. G. Bonchev Str. 103-A 1113 Sofia Bulgaria
| | - Stanislav Rangelov
- Institute of Polymers; Bulgarian Academy of Sciences; Akad. G. Bonchev Str. 103-A 1113 Sofia Bulgaria
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Bakardzhiev P, Momekova D, Edwards K, Konstantinov S, Rangelov S. Novel polyglycidol-lipid conjugates create a stabilizing hydrogen-bonded layer around cholesterol-containing dipalmitoyl phosphatidylcholine liposomes. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.06.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Thomas A, Müller SS, Frey H. Beyond Poly(ethylene glycol): Linear Polyglycerol as a Multifunctional Polyether for Biomedical and Pharmaceutical Applications. Biomacromolecules 2014; 15:1935-54. [DOI: 10.1021/bm5002608] [Citation(s) in RCA: 170] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Anja Thomas
- Institute
of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Sophie S. Müller
- Institute
of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
- Graduate School Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany
| | - Holger Frey
- Institute
of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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Bakardzhiev P, Rangelov S, Trzebicka B, Momekova D, Lalev G, Garamus VM. Nanostructures by self-assembly of polyglycidol-derivatized lipids. RSC Adv 2014. [DOI: 10.1039/c4ra03102d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polyglycidol-derivatized lipids were successfully prepared and their self-assembly in dilute aqueous solution into spherical micelles and lamellar structures was investigated.
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Affiliation(s)
- Pavel Bakardzhiev
- Institute of Polymers
- Bulgarian Academy of Sciences
- 1113 Sofia, Bulgaria
| | | | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials
- Polish Academy of Sciences
- 41-819 Zabrze, Poland
| | - Denitsa Momekova
- Department of Pharmaceutical Technology and Biopharmaceutics
- Faculty of Pharmacy
- Medical University – Sofia
- 1000 Sofia, Bulgaria
| | - Georgi Lalev
- Institute of Polymers
- Bulgarian Academy of Sciences
- 1113 Sofia, Bulgaria
- School of Chemistry
- Cardiff University
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10
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Halacheva SS, Freemont TJ, Saunders BR. pH-responsive physical gels from poly(meth)acrylic acid-containing crosslinked particles: the relationship between structure and mechanical properties. J Mater Chem B 2013; 1:4065-4078. [PMID: 32260959 DOI: 10.1039/c3tb20758g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gels that feature high internal porosity and have both high elasticity and ductility have potential to provide immediate load support and enable subsequent tissue regeneration of damaged soft tissue if combined with cells. Herein, we report results from a recent investigation of novel poly(methyl methacrylate-co-methacrylic acid), (PMMA-MAA) and poly(ethyl acrylate-co-methacrylic acid), (PEA-MAA) biodegradable, pH-sensitive particle gels which are with high porosity, elasticity and ductility. These gels formed at physiological pH range and are potentially injectable. The particles were prepared using solvent evaporation. They were functionalized by crosslinking the MAA groups of the particles via bis-amide formation with either cystamine (CYS) or 3,3'-dithiodipropionic acid dihydrazide (DTP) which simultaneously incorporated reversibility due to the presence of disulphide bonds within the crosslinker. The crosslinked particles were observed by dynamic light scattering to swell appreciably in size upon increasing the pH. Concentrated dispersions formed elastic and ductile physical gels within the physiological pH range. A key finding of this study was that for crosslinked particles of similar composition the formation of considerably more elastic and ductile gels was observed from the most lightly crosslinked particles. Furthermore, compared to the PMMA-MAA/CYS and PEA-MAA/CYS gels, those formed from DTP-crosslinked particles had higher elasticity, thicker pore walls and improved interconnectivity. For the PMMA-MAA/DTP gels an elastic modulus value as high as 100 kPa and a yield strain greater than 100% were observed for a gel containing only 5 wt% of particles. The improved mechanical properties of these new gel-forming dispersions imply that they now have good potential for future application as injectable gels for regenerative medicine.
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Affiliation(s)
- Silvia S Halacheva
- University of Manchester, Materials Science Centre, Grosvenor Street, Manchester, M1 7HS, UK.
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Štěpánek M, Hajduová J, Procházka K, Šlouf M, Nebesářová J, Mountrichas G, Mantzaridis C, Pispas S. Association of poly(4-hydroxystyrene)-block-poly(ethylene oxide) in aqueous solutions: block copolymer nanoparticles with intermixed blocks. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:307-13. [PMID: 22107340 DOI: 10.1021/la203946s] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Association behavior of diblock copolymer poly(4-hydroxystyrene)-block-poly(ethylene oxide) (PHOS-PEO) in aqueous solutions and solutions in water/tetrahydrofuran mixtures was studied by static, dynamic, and electrophoretic light scattering, (1)H NMR spectroscopy, transmission electron microscopy, and cryogenic field-emission scanning electron microscopy. It was found that, in alkaline aqueous solutions, PHOS-PEO can form compact spherical nanoparticles whose size depends on the preparation protocol. Instead of a core/shell structure with segregated blocks, the PHOS-PEO nanoparticles have intermixed PHOS and PEO blocks due to hydrogen bond interaction between -OH groups of PHOS and oxygen atoms of PEO and are stabilized electrostatically by a fraction of ionized PHOS units on the surface.
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Affiliation(s)
- Miroslav Štěpánek
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, 12840 Prague 2, Czech Republic.
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Halacheva S, Price GJ, Garamus VM. Effects of Temperature and Polymer Composition upon the Aqueous Solution Properties of Comblike Linear Poly(ethylene imine)/Poly(2-ethyl-2-oxazoline)-Based Polymers. Macromolecules 2011. [DOI: 10.1021/ma2012859] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Silvia Halacheva
- Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, United Kingdom
| | - Gareth J. Price
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Vasil M. Garamus
- Helmholtz-Zentrum Geesthacht: Zentrum für Material und Küstenforschung GmbH, Max Planck Strasse 1, D-21502, Geesthacht, Germany
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Halacheva S, Rangelov S, Tsvetanov C, Garamus VM. Aqueous Solution Properties of Polyglycidol-Based Analogues of Pluronic Copolymers. Influence of the Poly(propylene oxide) Block Molar Mass. Macromolecules 2009. [DOI: 10.1021/ma902150t] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Silvia Halacheva
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria
- Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, U.K
| | - Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria
| | - Christo Tsvetanov
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria
| | - Vasil M. Garamus
- GKSS Research Centre, Max Planck Strasse 1, D-21502 Geesthacht, Germany
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Rangelov S, Halacheva S, Garamus VM, Almgren M. Structural Polymorphism Exhibited by Polyglycidol-Based Analogues to Pluronic Copolymers in Aqueous Solution. Macromolecules 2008. [DOI: 10.1021/ma801238x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria, Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom, GKSS Research Centre, Max-Planck Strasse 1, D-21502 Geesthacht, Germany, and Department of Physical and Analytical Chemistry, University of Uppsala, Uppsala, Sweden
| | - Silvia Halacheva
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria, Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom, GKSS Research Centre, Max-Planck Strasse 1, D-21502 Geesthacht, Germany, and Department of Physical and Analytical Chemistry, University of Uppsala, Uppsala, Sweden
| | - Vasil M. Garamus
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria, Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom, GKSS Research Centre, Max-Planck Strasse 1, D-21502 Geesthacht, Germany, and Department of Physical and Analytical Chemistry, University of Uppsala, Uppsala, Sweden
| | - Mats Almgren
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria, Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom, GKSS Research Centre, Max-Planck Strasse 1, D-21502 Geesthacht, Germany, and Department of Physical and Analytical Chemistry, University of Uppsala, Uppsala, Sweden
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Halacheva S, Rangelov S, Tsvetanov C. Synthesis of Polyglycidol-Based Analogues to Pluronic L121−F127 Copolymers. Self-Assembly, Thermodynamics, Turbidimetric, and Rheological Studies. Macromolecules 2008. [DOI: 10.1021/ma801086b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Silvia Halacheva
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria, and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
| | - Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria, and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
| | - Christo Tsvetanov
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103-A, 1113 Sofia, Bulgaria, and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
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16
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Sosnowski S. Selective cleavage of acetal bonds in copolymers with polylactide block. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22993] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Halacheva S, Rangelov S, Tsvetanov C. Rheology of Aqueous Solutions of Polyglycidol-Based Analogues to Pluronic Block Copolymers. J Phys Chem B 2008; 112:1899-905. [DOI: 10.1021/jp0742463] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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