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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
Author(s) -
Ellis T. S.,
Still R. H.
Publication year - 1979
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1979.070231004
Subject(s) - pyrolysis , polystyrene , polymer , bond cleavage , mass spectrometry , radical , chemistry , degradation (telecommunications) , alkyl , gas chromatography , analytical chemistry (journal) , polymer chemistry , organic chemistry , materials science , chromatography , catalysis , telecommunications , computer science
Abstract 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 described and discussed.