Premium
The glass transition of compatible blends
Author(s) -
Couchman P. R.
Publication year - 1987
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760270903
Subject(s) - thermodynamics , enthalpy , glass transition , materials science , entropy (arrow of time) , statistical physics , mixing (physics) , physics , polymer , composite material , quantum mechanics
In a thermodynamic model of the glass transition, general but circular relations for the compositional variation of the glass‐transition temperature, T g , can be derived from the entropy, the volume, and the enthalpy. The circumstances necessary for each of these to reduce to predictive relations are stated. Of these relations, that derived from the entropy should be the most general because of the expected rather wide applicability of the random mixing assumption, with which it is associated. The entropic theory is used to account for several aspects of the compositional variation of T g , including problems not of solutions per se.