丙烯腈和偏氯乙烯共聚物的裂解研究The Py-GC-MS Research of the Copolymer of Acrylonitrile and Vinylidene Chloride
袁莹,来金凤,李文刚
YUAN Ying,LAI Jin-feng,LI Wen-gang
摘要(Abstract)：
丙烯腈(AN)和偏氯乙烯(VDC)的共聚物是一种优质的阻燃假发材料。通过裂解气相色谱-质谱联用仪,对AN-VDC共聚物分别在280℃、350℃、450℃、550℃和750℃下的裂解产物进行分析,并研究了共聚物的降解机制。试验结果表明:低温裂解产物主要是氯化氢(HCl),高温裂解产物主要是含AN单元的短链段或环状结构。从裂解产物可知,AN-VDC共聚物结构较为复杂,不仅存在AN-VDC的无规共聚物和交替共聚物,还存在AN均聚物。
Acrylonitrile(AN)-vinylidene chloride(VDC) copolymer is a kind of high quality flame-resistingmaterials for wig. In this paper, the GC-MS made in Japan was used to analysis the products, which werepyrolysis products from the AN-VDC copolymer at the temperatures of 280 ℃, 350 ℃, 450 ℃, 550 ℃ and750 ℃, respectively. The degradation mechanism of the AN-VDC copolymer was also studied. Experimen-tal results showed that the low temperature pyrolysis products were mainly hydrogen chloride(HCl), and thehigh temperature pyrolysis products were mainly short chain segments with AN units or cyclic structures.The structures of AN-VDC copolymer were complex. They included the AN-VDC random copolymer, theAN-VDC alternating copolymers and the AN homopolymer.
关键词(KeyWords)：
丙烯腈;偏氯乙烯;共聚物;降解机制
acrylonitrile,vinylidene chloride,copolymer,degradation mechanism
基金项目(Foundation):
作者(Author):
袁莹,来金凤,李文刚
YUAN Ying,LAI Jin-feng,LI Wen-gang
DOI: 10.16090/j.cnki.hcxw.2014.03.001
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