Crosslinking on ageing of elastomers: I. Photoageing of EPDM monitored by gel, swelling and DSC measurements

被引：50

作者：

Baba, M ^{[1
]}

Gardette, JL ^{[1
]}

Lacoste, J ^{[1
]}

机构：

[1] Univ Blaise Pascal, ENS Chim Clermont Ferrand, Photochim Mol & Macromol Lab, CNRS,UMR 6505, F-63177 Clermont Ferrand, France

来源：

POLYMER DEGRADATION AND STABILITY | 1999年 / 63卷 / 01期

关键词：

D O I：

10.1016/S0141-3910(98)00080-9

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 crosslinking reactions occurring during the photo-oxidation of EPDM have been examined by measuring changes in gel fraction, degree of swelling and freezing point by Differential Scanning Calorimetry. The correlation with the variation of the carbonyl index showed that the crosslinking process was very efficient (similar to that obtained by peroxide vulcanization) and occurred at the very early stages of the photo-oxidation. Gel fraction measurements showed that chain scissions were detected as soon as the formation of oxidation photoproducts could be observed by infrared analysis of the oxidied polymer. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：121 / 126

页数：6

共 17 条

[1] PHOTO-OXIDATION OF ELASTOMERIC MATERIALS .1. PHOTOOXIDATION OF POLYBUTADIENES [J].