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Thermal analysis of compounded poly(vinyl chloride)
Author(s) -
Dunn P.,
Ennis B. C.
Publication year - 1970
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.1970.070140210
Subject(s) - vinyl chloride , plasticizer , thermal decomposition , materials science , thermal stability , phthalate , endothermic process , isothermal process , polymer chemistry , polyvinyl chloride , polymer , ferric , chloride , vinyl polymer , zinc , oxide , chemical engineering , chemistry , organic chemistry , composite material , polymerization , thermodynamics , copolymer , adsorption , metallurgy , physics , engineering
Differential thermal analysis of mixtures of poly(vinyl chloride) and dioctyl phthalate shows a compound endothermic peak due to decomposition of both polymer and plasticizer. The thermal behavior of other plasticizers is similarly affected in the presence of poly(vinyl chloride). The addition of zinc oxide or ferric oxide decreases the thermal stability of the mixture and, under isothermal conditions, a resultant induction period allows the estimation of an activation energy for the dehydrochlorination of poly‐(vinyl chloride) and of the relative effectiveness of thermal stabilizer systems.