PHOTOCROSSLINKABLE VINYLAMINE COPOLYMERS .1. SYNTHESIS AND PHOTOSENSITIVITY OF CINNAMOYLATED POLYVINYLAMINE

Citation
A. Elachari et X. Coqueret, PHOTOCROSSLINKABLE VINYLAMINE COPOLYMERS .1. SYNTHESIS AND PHOTOSENSITIVITY OF CINNAMOYLATED POLYVINYLAMINE, Journal of polymer science. Part A, Polymer chemistry, 35(12), 1997, pp. 2513-2520
Citations number
24
Categorie Soggetti
Polymer Sciences
ISSN journal
0887624X
Volume
35
Issue
12
Year of publication
1997
Pages
2513 - 2520
Database
ISI
SICI code
0887-624X(1997)35:12<2513:PVC.SA>2.0.ZU;2-Y
Abstract
Vinylamine copolymers prepared by the Hofmann reaction were functional ized by amidification with cinnamoyl chloride. The resulting photosens itive polymers, which are the nitrogen analogues of poly(vinylcinnamat e), can be prepared with various contents of cinnamamide side groups. The polymers exhibit a marked hydrophilicity and undergo efficient cro sslinking upon exposure to 250-300 nm UV light. The sensitivity S expr essed in cm(2).J(-1) was shown to be higher for a given conf ent, tau, in cinnamamide groups expressed in mol.g(-1) when the residual vinyl amine units are in the ammonium form. The dependence of S upon tau was of the second order for the free base form of the photopolymers, but a higher order with S approximately proportional to tau(3) for the hyd rochloride form of the photosensitive polymers. (C) 1997 John Wiley & Sons, Inc.