ON THE THERMOLYSIS OF POLY(CHLOROALKYL METHACRYLATES) AND POLY(CHLOROALKYL ACRYLATES) .3. THE INFLUENCE OF SIMULTANEOUS UV IRRADIATION

Authors
SONG J FRITZ PM FISCHER CH SCHNABEL W
Citation
J. Song et al., ON THE THERMOLYSIS OF POLY(CHLOROALKYL METHACRYLATES) AND POLY(CHLOROALKYL ACRYLATES) .3. THE INFLUENCE OF SIMULTANEOUS UV IRRADIATION, Polymer degradation and stability, 43(2), 1994, pp. 177-185
Citations number
9
Categorie Soggetti
Polymer Sciences
Journal title
Polymer degradation and stability → ACNP
ISSN journal
01413910
Volume
43
Issue
2
Year of publication
1994
Pages
177 - 185
Database
ISI
SICI code
0141-3910(1994)43:2<177:OTTOPM>2.0.ZU;2-6
Abstract
Upon-irradiation of PMCMA, PDCMA and PTCMA at ambient temperature with light of lambda = 253.7 nm, PMCMA and PDCMA undergo main-chain scissi on predominantly whereas PTCMA is intermolecularly crosslinked. A new absorption band with a maximum around 280 nm is formed in all cases. T his band is attributed to aldehyde groups generated in pendant groups. Under the influence of UV light the thermal degradation, overwhelming ly by depolymerization, commences at lower temperatures (at about 350 K) than in the dark (at about 440 K).