THERMOLYSIS OF ALTERNATING ETHYLENE CARBON-MONOXIDE COPOLYMER

被引：20
|
作者：
CHIEN, JCW
ZHAO, AX
机构：
[1] Department of Polymer Science and Engineering, Materials Research Laboratories, University of Massachusetts, Amherst
来源：
POLYMER DEGRADATION AND STABILITY | 1993年 / 40卷 / 02期
关键词：
D O I：
10.1016/0141-3910(93)90213-3
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Alternating ethylene-carbon monoxide copolymer was thermolyzed by flash pyrolysis gas chromatography mass spectrometry and the pyrolyzates identified. Main chain scission produces four to ten times more [GRAPHICS] than [GRAPHICS] Intramolecular H-shifts produce the vinyl alkyl ketone series; intermolecular H abstraction forms crosslinks; intramolecular cyclization and dehydration leaves 20-30% carbonaceous residues. The alternating copolymer is stable up to 325-degrees-C; the activation energy for thermolysis increases with the extent of the degradation due to crosslinking and aromatization.
引用
收藏
页码：257 / 261
页数：5
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