Influence of diene content on the photodegradation of ethylene-propylene-diene (EPDM) Elastomers

被引：2

作者：

Botelho, G. ^{[1
]}

Queiros, A. ^{[1
]}

Silva, M. A. ^{[1
]}

Conceicao, J. ^{[1
]}

机构：

[1] Univ Minho, Ctr Quim, P-4710057 Braga, Portugal

来源：

ADVANCED MATERIALS FORUM III, PTS 1 AND 2 | 2006年 / 514-516卷

关键词：

photodegradation; EPDM; dicyclopentadiene;

D O I：

10.4028/www.scientific.net/MSF.514-516.877

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The photodegradation of EPDM based on dicyclopentadiene was followed by FTIR spectroscopy and the main photo-oxidation products were identified by derivatization reactions. It could be found that the photodegradation is initiated at the diene with formation of alpha,beta-unsaturated carbonyl compounds and is then propagated to the ethylene-propylene segments. The propagation reactions are accelerated and, hence, the rate of photodegradation increases with the diene content.

引用

页码：877 / 881

页数：5

共 7 条

[1] Enhancement of the thermooxidative degradability of polystyrene by chemical modification [J].