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Thermal analysis of the glass transition of plasticized poly(vinyl chloride)
Author(s) -
Beirnes Kimberley J.,
Burns Charles M.
Publication year - 1986
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.1986.070310815
Subject(s) - adipate , phthalate , differential scanning calorimetry , glass transition , vinyl chloride , plasticizer , materials science , polymer chemistry , thermal analysis , polyvinyl chloride , dynamic mechanical analysis , thermal , chemical engineering , polymer , composite material , thermodynamics , copolymer , physics , engineering
Abstract Earlier studies by differential scanning calorimetry showed anomalous behavior of T g with varying amounts of dioctyl phthalate, while by dynamic mechanical analysis 2 T g 's were found over a limited concentration range. In this study, two adjacent T g 's were found over the complete range of concentrations of dioctyl phthalate or dioctyl adipate, changing in relative contributions over the range. The results are shown to be consistent with the earlier work and to fit the Couchman model more closely than other models tested.