引用本文:
赵根祥, 陈邦杰. 丙烯腈共聚物动态热产物的在位和在线傅里叶红外光谱研究[J]. 应用化学,
1985, 2(2): 57-61.
Citation: Zhao Genxiang, Chen Bangjie. THE IN SITU AND ON LINE FTIR STUDY ON DYNAMIC PYROLYTIC PRODUCTS OF ACRYLONITRLLE COPOLYMERS[J]. Chinese Journal of Applied Chemistry, 1985, 2(2): 57-61.
Citation: Zhao Genxiang, Chen Bangjie. THE IN SITU AND ON LINE FTIR STUDY ON DYNAMIC PYROLYTIC PRODUCTS OF ACRYLONITRLLE COPOLYMERS[J]. Chinese Journal of Applied Chemistry, 1985, 2(2): 57-61.
丙烯腈共聚物动态热产物的在位和在线傅里叶红外光谱研究
摘要:
用在位和在线傅里叶变换红外光谱法研究了丙烯腈(AN)/二丙酮丙烯酰胺(DAA)/丙烯酸甲酯(MA)三元共聚物在氮气中热解时固态和气态产物的动态变化过程。实验结果表明,以300℃下共聚物主要发生先环化后脱氢的反应。在300℃-950℃间,形成的六元环结构继续发生脱氢、脱氮、脱氧以及缩合交联和稠环化,析出HCN、NH3、CH4、CO和CO2等气态产物和形成无定形碳素组元结构的固态残留物。
English
THE IN SITU AND ON LINE FTIR STUDY ON DYNAMIC PYROLYTIC PRODUCTS OF ACRYLONITRLLE COPOLYMERS
Abstract:
By using in-situ and on-line Fourier transform infrared spectroscopic methods (FTIR),the dynamic change of solid and gaseous products of acrylonitrile (AN) /diacetone acr-ylamide (DAA)/methylacrylate(MA) copolymers was monitored durin g its pyrolysis in nitrogen atmosphere. It was found that at lower temperature of pyrolysis (below 300℃) the cyclization,occurred mainly, then the dehydrogenation reactions. The samples wereeventually pyrolyzed at the temperature between 300℃ and 950℃. The gaseous products evolved were HCN, NH3, CH4, CO2, CO etc. and the solid residues were of amor-phous carbonaceous structure.
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