Journal
POLYMER
Volume 44, Issue 16, Pages 4747-4754Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0032-3861(03)00446-4
Keywords
glass transition temperature; Gibbs-DiMarzio; Sanchez-Lacombe
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A model has been developed to estimate the glass transition temperature of polymer + plasticizer mixtures (up to 30 wt% plasticizer). The model is based on the Sanchez-Lacombe equation of state and the Gibbs-DiMarzio criterion, which states that the entropy of a mixture is zero at the glass transition. The polymers studied included polystyrene and poly(vinyl chloride). The plasticizers studied included a wide range of chemicals from methyl acetate to di-undecyl phthalate. The model qualitatively accounted for the effect of different plasticizers on the mixture glass transition temperature. (C) 2003 Elsevier Science Ltd. All rights reserved.
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