Premium
Thermal decomposition of acrylic–SO 2 copolymers
Author(s) -
Tsonis C. P.
Publication year - 1993
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.1993.070490712
Subject(s) - copolymer , acrylonitrile , polymer chemistry , thermal stability , thermal decomposition , glass transition , materials science , monomer , endothermic process , methacrylate , acrylamide , decomposition , polymer , exothermic reaction , chemical engineering , chemistry , organic chemistry , composite material , adsorption , engineering
The oxidative thermal degradation of acrylic–SO 2 copolymers was investigated by TG, DTG, and DTA. Their thermograms show that the copolymers decompose in several reaction stages with different weight loss, accompanied by several exo‐ and endothermic effects. Acrylonitrile–SO 2 and methacrylate–SO 2 copolymers exhibit a two‐stage thermal decomposition, whereas the polysulfones of the acrolein–SO 2 and acrylamide–SO 2 systems decompose in four stages. Both the number of SO 2 units present in the copolymer and the polarity of the pendant group on the organic monomer have some effect on the thermal stability and the glass transition temperature of the polymers. © 1993 John Wiley & Sons, Inc.