KINETICS OF THERMAL-DEGRADATION OF A COPOLYMER OF VINYLIDENE CYANIDE WITH CYANOVINYLACETATE

被引：3
|
作者：
RAIHANE, M [1 ]
LALEQUE, N [1 ]
BOINON, B [1 ]
机构：
[1] UNIV ST ETIENNE, FAC TECH SCI, CHIM ORGAN & MACROMOLEC LAB, F-42023 ST ETIENNE 2, FRANCE
来源：
THERMOCHIMICA ACTA | 1995年 / 265卷
关键词：
GC-MS; KINETICS; THERMAL DEGRADATION; TGA; VINYLIDENE CYANIDE CYANOVINYLACETATE COPOLYMER;
D O I：
10.1016/0040-6031(95)02289-E
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The kinetics of the thermal degradation of a copolymer of vinylidene cyanide and cyanovinylacetate has been investigated by thermogravimetric analysis and GC-MS coupling,The volatile compounds evolved are chiefly ethanoic acid and CVA monomer in minor amounts. A kinetic model of an elimination reaction, with a strongly autocatalytic character, allows a very good fit of the experimental data with the theoretical curves. The kinetic law is d alpha/dt = k(alpha + C)(A - alpha) where A and C are constants for every temperature. The activation energy has been found to be 129.3 kJ mol(-1) and the pre-exponential factor is 1.3 x 10(12) min(-1).
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页码：1 / 13
页数：13
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