Citation: ZHAO Genxiang, CHEN Bangjie. STUDY ON THE GASEOUS PRODUCTS OF HIGH TEMPERATURE PYROLYSIS OF ACRYLONITRILE POLYMERS BY ON-LINE FTIR METHOD[J]. Chinese Journal of Polymer Science, ;1987, 5(2): 87-94. shu

STUDY ON THE GASEOUS PRODUCTS OF HIGH TEMPERATURE PYROLYSIS OF ACRYLONITRILE POLYMERS BY ON-LINE FTIR METHOD

Received Date: 12 June 1984

The gaseous products of high temperature pyrolysis (300℃ to 960℃) of aerylonitrile polymers were measured continuously under nitrogen atmosphere by on-line Fourier Transform Infrared Spectroscopic method (FTIR). From the variations of characteristic peaks it was found that the nitrogen of macromolecules evolved were mainly in the form of hydrogen cyanide and ammonia. During the pyrolysis amorphous carbonaceous element was formed, and crosslinked to form network structure. Three kinds of samples were used for comparison.The experimental results show that the gaseous products of volatile small molecules were HCN,NH3,CH4,C2H6 and cyanide.CO and CO2 were formed when copolymers of PAN were thermally pyrolyzed.
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