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Pyrolysis of polyacrylonitrile and related polymers—II: The effect of sample preparation on the thermal behaviour of polyacrylonitrile

✍ Scribed by N. Grassie; R. McGuchan

Book ID
107753226
Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
734 KB
Volume
7
Category
Article
ISSN
0014-3057

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Pyrolysis of polyacrylonitrile and relat
Pyrolysis of polyacrylonitrile and related polymers—I. Thermal analysis of polyacrylonitrile
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AbstraetmThe thermal degradation of polyacrylonitrile has been studied using the techniques of thermogravimetry, differential thermal analysis and thermal volatilization analysis. The influence of experimental conditions on the results is examined. The very sharp exothermic reaction below 300 ° is a

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Al~traet--The thermal behaviour of polyacrylonitrile studied by DTA and TG is shown to be greatly influenced by the presence of various types of additive. Pure PAN exhibits a very sharp exotherm at about 260 °, caused by the oligomerization of nitrile groups. This reaction can be initiated at much l

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Comparison of the thermal behaviour of polyacrylonitrile with that of a-substituted polymers (polymethacrylonitrile, poly(a-phenyl acrylonitrile), poly(a-chloroacrylonitril¢) and poly(vinylidene cyanide)) shows that there is much less tendency for oligomerization of the nitrile groups in the substit