Synthesis of 3-alkylated-1-vinyl-2-pyrrolidones and preliminary kinetic studies of their photopolymerizations

Citation
La. White et al., Synthesis of 3-alkylated-1-vinyl-2-pyrrolidones and preliminary kinetic studies of their photopolymerizations, POLYMER, 40(23), 1999, pp. 6597-6605
Citations number
8
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
40
Issue
23
Year of publication
1999
Pages
6597 - 6605
Database
ISI
SICI code
0032-3861(199911)40:23<6597:SO3APK>2.0.ZU;2-M
Abstract
1,6-Bis-3-(vinyl-3-2-pyrrolidonyl)hexane (BNVP) was synthesized for use as a crosslinker in the photopolymerization of 1-vinyl-2-pyrrolidone (NVP). A model compound, 3-hexyl-1-vinyl-2-pyrrolidone (HNVP), was also synthesized for use as a model comonomer in the kinetic studies of NVP copolymerization . Copolymerizations with NVP and low feed ratios of HNVP indicate that ally l substitution in the 3-position on the pyrrolidone ring does not affect ra dical reactivity of the monomer. However, the comonomer containing this hex yl side chain acted as an internal plasticizer for the NVP polymers, loweri ng the T-g and reducing the effect of autoacceleration on the photopolymeri zation process. The crosslinked polymers exhibited gel-like swelling in wat er. The crosslinker limited the mobility of the polymer chains early in the polymerization and induced earlier onset of the Tromsdorff effect. (C) 199 9 Elsevier Science Ltd. All rights reserved.