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The preparation and properties of zinc coordination complexes of poly(4‐vinylpyridine‐co‐ n ‐butyl methacrylate) copolymers
Author(s) -
Jacovic Mihailo S.,
Perovic Ivan,
MacKnight William J.,
Lenz Robert W.
Publication year - 1988
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.1988.070350406
Subject(s) - copolymer , polymer chemistry , zinc , methacrylate , glass transition , polymer , transition metal , metal , molar ratio , materials science , chemistry , catalysis , organic chemistry
Two poly(4‐vinylpyridine‐co‐ n ‐butyl methacrylate) copolymers containing 14.2 and 30.0 mol% of 4‐vinylpyridine residues were prepared by free radical copolymerization reactions. Insoluble complexes were obtained for each copolymer by reaction with zinc chloride. The coordination complexes obtained had a molar ratio of 4‐vinylpyridine residues to zinc atoms close to 2 in both cases. The rheological behavior of each of these complexes has been compared to that of the corresponding metal‐free copolymers, which were recovered by decomplexation. The metal complexed polymers exhibited much higher glass transition temperatures and much longer high temperature relaxation times than the corresponding uncomplexed copolymers.