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Thermal degradation of polymers. XXIII. Vacuum pyrolysis of poly(p-N,N-diethylaminostyrene); the products volatile at pyrolysis temperature, liquid or gaseous at room temperature

โœ Scribed by T. S. Ellis; R. H. Still

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
465 KB
Volume
23
Category
Article
ISSN
0021-8995

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โœฆ Synopsis

The products obtained on vacuum pyrolysis of poly(p-N,N-diethylaminostyrene) are described. The effect of sample molecular weight and pyrolysis temperature are compared with that observed for polystyrene degraded under identical conditions. The liquid products were separated using gas-liquid chromatography and identified using Kovat's retention index and mass spectrometry. Significant differences were found between the products arising from the two polymers which are discussed in terms of mechanisms involving N-alkyl and N-aryl bond scission and the subsequent reactions of the generated radicals. Comparative quantitative studies are descrihed and discussed.

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๐Ÿ“œ SIMILAR VOLUMES

Thermal degradation of polymers. XXIV. V
Thermal degradation of polymers. XXIV. Vacuum pyrolysis of poly(p-N,N-diethylaminostyrene); the residue and the fraction volatile at pyrolysis temperature, involatile at room temperature
โœ T. S. Ellis; R. H. Still ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 498 KB

Comparative studies were made of the residue and the fraction volatile a t pyrolysis temperature, involatile a t ambient temperature obtained from polystyrene and poly(p-N,N-diethylaminostyrene) degraded under identical conditions. Poly(p-N,N-diethylaminostyrene) yielded a crosslinked glassy residue