| 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 |
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| 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,1985,0(2):57-61. |
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| 作者姓名： | 赵根祥 陈邦杰 |
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| 作者单位： | 中国科学院山西煤炭化学研究所 |
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| 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。
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| 收稿时间： | 1984-05-24 |
| 修稿时间： | 1984-12-22 |
THE IN SITU AND ON LINE FTIR STUDY ON DYNAMIC PYROLYTIC PRODUCTS OF ACRYLONITRLLE COPOLYMERS |
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| 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,1985,0(2):57-61. |
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| Authors: | Zhao Genxiang Chen Bangjie |
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| Institution: | Shanxi Institute of Coal Chemistry, Academia Sinica |
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| 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 acrylamide (DAA)/methylacrylate(MA) copolymers was monitored durin g its pyrolysis innitrogen atmosphere. It was found that at lower temperature of pyrolysis (below 300℃) the cyclization,occurred mainly, then the dehydrogenation reactions. The samples were eventually 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 amorphous carbonaceous structure. |
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