Mechanism of Peroxide Crosslinking of EPDM Rubber

被引：0

作者：

van Duin, M. ^{[1
]}

Peters, R. ^{[1
]}

Orza, R. ^{[1
]}

Chechik, V. ^{[1
]}

机构：

[1] DSM Elastomers, NL-6160 BC Geleen, Netherlands

来源：

KGK-KAUTSCHUK GUMMI KUNSTSTOFFE | 2009年 / 62卷 / 09期

关键词：

EPDM; Peroxide; Crosslinking; Structure; Mechanism; MOLECULAR-WEIGHT MODEL; GAS-CHROMATOGRAPHY; MASS-SPECTROMETRY; EFFICIENCY;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The results of three experimental studies, i.e. GC-MS of peroxide-crosslinked alkene/alkane mixtures, C-13 NMR of peroxide-cured, C-13-labeled ENB-EPDM and EPR of peroxide curing of EPDM, are combined, yielding a more accurate description of the mechanism of peroxide cure of EPDM. Both alkyl and allyl macro-radicals are formed via H-abstraction from the EPM main chain and the residual diene unsaturation, respectively. Combination of these macro-radicals yields alkyl/alkyl, alkyl/allyl and allyl/allyl crosslinks and addition of these macro-radicals to the residual diene unsaturation yields alkyl/alkene and allyl/alkene crosslinks.

引用

页码：458 / 462

页数：5

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