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

被引：3
|
作者：
SONG, J
FRITZ, PM
FISCHER, CH
SCHNABEL, W
机构：
[1] Hahn-Meitner-Institut Berlin GmbH, D-14109 Berlin, Bereich S
来源：
POLYMER DEGRADATION AND STABILITY | 1994年 / 43卷 / 02期
关键词：
D O I：
10.1016/0141-3910(94)90067-1
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Upon-irradiation of PMCMA, PDCMA and PTCMA at ambient temperature with light of lambda = 253.7 nm, PMCMA and PDCMA undergo main-chain scission predominantly whereas PTCMA is intermolecularly crosslinked. A new absorption band with a maximum around 280 nm is formed in all cases. This band is attributed to aldehyde groups generated in pendant groups. Under the influence of UV light the thermal degradation, overwhelmingly by depolymerization, commences at lower temperatures (at about 350 K) than in the dark (at about 440 K).
引用
收藏
页码：177 / 185
页数：9
相关论文
共 50 条
12345