VACUUM PHOTOLYSIS OF POLY(PHENYLENE ETHER) AT SHORT AND LONG WAVELENGTHS

被引：10

作者：

RIVATON, A

MOREL, P

机构：

[1] Laboratoire de Photochimie Moléculaire et Macromoléculaire, URA CNRS 433-Ensemble Universitaire des Cézeaux

来源：

POLYMER DEGRADATION AND STABILITY | 1992年 / 35卷 / 02期

关键词：

Benzyl Radicals - Nicolet 20 SX FTIR Spectrophotometer - Phenoxy Radicals - Phenyl Radicals;

D O I：

10.1016/0141-3910(92)90104-D

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The vacuum photolysis of poly(phenylene ether) (PPE) under various types of radiation (254-365 nm) is reported. The photolysis observed in PPE in the solid state is characterized using FTIR analysis as a complement to UV spectroscopy. The primary photolytic process implies scission of the ether bond leading to the formation of phenoxy and phenyl radicals. Subsequently, benzyl radicals are formed. Photolysis products are identified as phenolic and quinone-methide structures and are responsible for yellowing of irradiated films.

引用

页码：131 / 139

页数：9

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