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Esterolytic activity of vinylimidazole–vinylpyrrolidinone copolymers
Author(s) -
Kopple Kenneth D.
Publication year - 1968
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1968.360061005
Subject(s) - chemistry , imidazole , copolymer , hydrolysis , reactivity (psychology) , catalysis , substrate (aquarium) , polymer , polymer chemistry , side chain , organic chemistry , medicine , oceanography , alternative medicine , pathology , geology
Copolymers of vinylimidazoles and vinylpyrrolidinone, dilute in imidazole residues, have been prepared; their reactivity in the hydrolysis of p ‐nitrophenyl acetate has been examined. The catalytic activity of imidazole residues in these copolymers is comparable to that of nonpolyineric imidazoles of the same basicity, and no kinetic effects of preassociation of polymer with substrate ester of p ‐nitrophenol were detected. It is suggested that although polyvinylpyrrolidinone probably does bind these substances, they are sequestered from the catalytic, side chains.