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Characterization of cationic water‐soluble polyacrylamides
Author(s) -
Vu Can,
Cabestany Jean
Publication year - 1991
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1991.070421101
Subject(s) - copolymer , cationic polymerization , polymer , polymer chemistry , acrylamide , nuclear magnetic resonance spectroscopy , emulsion polymerization , materials science , spectroscopy , polymerization , chemistry , organic chemistry , physics , quantum mechanics
Copolymers of poly(acrylamide‐ co ‐acryloyloxyethyltrimethylammonium chloride or AM–CMA) and poly(acrylamide‐ co ‐methacryloyloxyethyltrimethylammonium chloride or AM–CMA) prepared by inverse emulsion polymerization were characterized by different analytical techniques. The chemical composition of the copolymers was estimated by elemental analysis and by nuclear magnetic resonance spectroscopy (NMR). NMR spectroscopy and computer simulation were further used for investigating the polymers' sequence distribution. The poly(AM–CMA) copolymers are chemically more homogeneous than are the poly(AM–CMA). The configurational propagation of dyads and triads for the homopolymers obeys Bernouilli's statistics. For the copolymers, the chemical sequences distribution is governed by Markov's first‐order statistics.