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Structure formation and gelation phenomena in solutions of ternary interpolyelectrolyte complexes
Author(s) -
Kabanov V. A.,
Zezin A. B.,
Izumrudov V. A.,
Bronitch T. K.,
Kabanov N. M.,
Listova O. V.
Publication year - 1990
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19900390114
Subject(s) - polyelectrolyte , aqueous solution , methacrylate , polymer chemistry , covalent bond , stoichiometry , ternary operation , chemistry , cationic polymerization , bromide , counterion , chemical engineering , materials science , copolymer , polymer , inorganic chemistry , ion , organic chemistry , computer science , engineering , programming language
The representative of the new family of mechanically reversible gels is described. The gel is formed by mixing of an aqueous solution of non‐stoichiometric interpolyelectrolyte complex of poly (sodium methacrylate) and poly(N‐ethyl‐4‐vinylpyridinium bromide) containing a certain amount of covalent links between oppositely charged polyions, with aqueous solution of poly(potassium vinylsulfate). The gelation mechanism arises to the partial replacement of the electrostatic contacts between the polycation and poly(methacrylate) anion in the original polycomplex with those between the polycation and poly(vinylsulfate) polyanion. The network of the gel is most probably formed by the nodes consisting of covalent links and interpolyelectrolyte double‐strand electrostatic clusters, united by poly(sodium methacrylate) tie‐chains.