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Elasticity of polymer gels: Effect of solvent quality on the shear modulus of poly(vinyl acetate) networks
Author(s) -
Horkay Ferenc,
Zrinyi Miklós,
Geissler Erik,
Hecht AnneMarie
Publication year - 1990
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19900400120
Subject(s) - shear modulus , materials science , swelling , bulk modulus , thermodynamics , composite material , vinyl acetate , polymer , elastic modulus , solvent , vinyl alcohol , modulus , elasticity (physics) , shear (geology) , polymer chemistry , chemistry , organic chemistry , physics , copolymer
The dependence of the shear modulus and of the swelling equilibrium concentration of polyvinylacetate gel homologues in equilibrium with excess isopropyl alcohol is investigated in the temperature range 30≤T≤70°C. At the theta temperature (T=52°C) the volume elastic modulus was also determined and compared with the shear modulus. The results are interpreted in terms of a free‐energy function derived on the basis of the network unfolding hypothesis.