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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. shu

THE IN SITU AND ON LINE FTIR STUDY ON DYNAMIC PYROLYTIC PRODUCTS OF ACRYLONITRLLE COPOLYMERS

1.
Shanxi Institute of Coal Chemistry, Academia Sinica

Received Date: 24 May 1984
Available Online: 22 December 1984

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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