Synthesis and self-association in aqueous media of poly(ethylene oxide)/poly(ethyl glycidyl carbamate) amphiphilic block copolymers

New temperature sensitive AB, ABA, and BAB amphiphilic block copolymers consisting of hydrophilic poly(ethylene oxide) and hydrophobic poly(ethyl glycidyl carbamate) blocks were synthesized by anionic polymerization followed by chemical modification reactions. The self-association of the block copol...

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Bibliographic Details
Published in:Polymer (Guilford) 2006-06, Vol.47 (14), p.4905-4915
Main Authors: Dimitrov, Philip, Utrata-Wesołek, Alicja, Rangelov, Stanislav, Wałach, Wojciech, Trzebicka, Barbara, Dworak, Andrzej
Format: Article
Language:English
Subjects:
Amphiphilic block copolymers
Anionic polymerization
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polyethers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:New temperature sensitive AB, ABA, and BAB amphiphilic block copolymers consisting of hydrophilic poly(ethylene oxide) and hydrophobic poly(ethyl glycidyl carbamate) blocks were synthesized by anionic polymerization followed by chemical modification reactions. The self-association of the block copolymers in aqueous media was studied by UV–vis spectroscopy and dynamic and static light scattering. The obtained block copolymers spontaneously form micelles in aqueous media. The critical micellization concentration varied from 0.5 to 4g/L depending on the copolymer architecture and composition. The influence of the temperature upon the self-association of the block copolymers was investigated. The increase of temperature did not affect the value of the critical micellization concentration, but led to the formation of better defined micelles with narrow size distribution.
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2006.05.030