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Influence of curing agent concentration and curing temperatures on the thermostability of styrene–acrylonitrile–acrylamide–trimethylolpropane trimethacrylate copolymer systems
Author(s) -
Zeldin Arkady N.,
Kukacka Lawrence E.,
Fontana Jack J.,
Carciello Neal R.,
Reams Walter
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.1979.070240213
Subject(s) - thermogravimetric analysis , acrylonitrile , copolymer , curing (chemistry) , materials science , thermal stability , polymer chemistry , monomer , acrylamide , polymer , styrene , chemical engineering , composite material , engineering
Thermogravimetric (TGA) and infrared (IR) analyses were used to determine the thermal stability of a polymer system consisting of styrene–acrylonitrile–acrylamide–trimethylolpropane trimethacrylate. This study indicates that increases in curing temperature and the use of two initiators with different activities decreases the percentages of unreacted monomers. This increases the thermal stability of the polymer. To prove this, dynamic and isothermal TGA were used. The change in typical functional groups found by IR spectra also confirms this observation.