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Pyrolysis–molecular weight chromatography–vapor‐phase infrared spectrophotometry: An on‐line system for analysis of polymers. III. Thermal decomposition of polysulfones and polystyrene
Author(s) -
Kiran Erdoǧan,
Gillham John K.,
Gipstein Edward
Publication year - 1977
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.1977.070210501
Subject(s) - sulfone , polystyrene , styrene , thermal decomposition , materials science , polymer chemistry , polymer , pyrolysis , copolymer , chemistry , organic chemistry , composite material
The thermal decomposition of poly(butene‐1 sulfone), poly(pentene‐1 sulfone), poly(hexene‐1 sulfone), poly(styrene sulfone), and polystyrene was investigated in helium at a heating rate of 20°C/min using an experimental system which consists of a programmable pyrolyzer, a thermal conductivity detector, a mass chromatograph, and a vapor‐phase infrared spectrophotometer. Poly(butene‐1 sulfone), poly(penetene‐1 sulfone), and poly(hexene‐1 sulfone) displayed two‐step decomposition; the primary products of decomposition at both steps were the comonomers (olefin and SO 2 ). For poly(styrene sulfone), in addition to styrene and SO 2 , products with molecular weights corresponding to dimers of styrene were observed. Decomposition of this polymer was compared with that of polystyrene, which formed mostly monomer.