Evolution of Structure in a Comb Copolymer–Surfactant Coacervate

The interaction between a double-hydrophilic comb copolymer with the polyanionic backbone poly­[methacrylic acid-stat-poly­(ethylene glycol) methyl ether methacrylate] (PMAA–PEGMA) and the cationic surfactant N-dodecylpyridinium chloride (DPCl) was studied in alkaline aqueous solutions by using a co...

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Bibliographic Details
Published in:Macromolecules 2019-08, Vol.52 (16), p.6303-6310
Main Authors: Fanova, Anastasiia, Janata, Miroslav, Filippov, Sergey K, Šlouf, Miroslav, Netopilík, Miloš, Mariani, Alessandro, Štěpánek, Miroslav
Format: Article
Language:English
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Summary:The interaction between a double-hydrophilic comb copolymer with the polyanionic backbone poly­[methacrylic acid-stat-poly­(ethylene glycol) methyl ether methacrylate] (PMAA–PEGMA) and the cationic surfactant N-dodecylpyridinium chloride (DPCl) was studied in alkaline aqueous solutions by using a combination of light and X-ray scattering techniques, covering 5 orders of magnitude in space (the q vector range from 10–5 to 5 nm–1) and time (from milliseconds to several hours). The results showed that the polyelectrolyte–surfactant (PE–S) complex of PMAA–PEGMA and DPCl forms micrometer-sized coacervate particles containing collapsed PMAA–PEGMA chains with attached and densely packed DPCl micelles. Time-resolved SAXS measurements coupled with a stopped-flow apparatus revealed that the phase separation of the PE–S complex into a coacervate phase occurred in
ISSN:0024-9297
1520-5835
DOI:10.1021/acs.macromol.9b00332