PHOTOPOLYMERIZATION OF STYRENE AND METHYL-METHACRYLATE WITH POLY(METHYLPHENYLSILANE) AS PHOTOINITIATOR

Authors
CHANG TC CHIU YS CHEN HB HO SY
Citation
Tc. Chang et al., PHOTOPOLYMERIZATION OF STYRENE AND METHYL-METHACRYLATE WITH POLY(METHYLPHENYLSILANE) AS PHOTOINITIATOR, Journal of the Chinese Chemical Society, 41(6), 1994, pp. 843-848
Citations number
29
Categorie Soggetti
Chemistry
Journal title
Journal of the Chinese Chemical Society → ACNP
ISSN journal
00094536
Volume
41
Issue
6
Year of publication
1994
Pages
843 - 848
Database
ISI
SICI code
0009-4536(1994)41:6<843:POSAMW>2.0.ZU;2-C
Abstract
The rate of photochemical polymerization of styrene (St) and methyl me thacrylate (MMA) with polymethylphenylsilane (PMPS) as initiator were measured. Polymethylphenylsilane is photodegraded to form silyl radica ls that may initiate polymerization of St and MMA. The kinetic orders of polymerization reactions of initiator PMPS in St and in MMA systems are 0.49 and 0.29, respectively. The rate coefficients k(p) and k(t) are 38.1 and 0.71 x 10(7) Lmol(-1)s(-1) in the St/PMPS system and 249. 5 and 6.71 x 10(7) Lmol(-1)s(-1) in the MMA/PMPS system. A polymerizat ion reaction mechanism is proposed.