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Solubility parameters of polymers from swelling measurements at 60°C
Author(s) -
Chee K. K.
Publication year - 1995
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.1995.070581117
Subject(s) - swelling , natural rubber , polymer , solubility , polystyrene , hildebrand solubility parameter , materials science , polymer chemistry , polyethylene , low density polyethylene , methyl methacrylate , flory–huggins solution theory , thermodynamics , composite material , chemistry , copolymer , physics
Abstract The swelling behavior of the networks of natural rubber, an epoxidized natural rubber, low‐density polyethylene, polystyrene, and poly(methyl methacrylate) are studied in six classes of solvents at 60°C. The data of the swelling coefficient are successfully treated by a modified version of the empirical equation proposed by Gee, as to determine the solubility parameter of a polymer, δ 2 . It is found that increasing the temperature would decrease the δ 2 's of these polymers with a common rate of 0.02 (J/mL) 1/2 /K. A semiempirical model is proposed to rationalize the present finding satisfactorily. © 1995 John Wiley & Sons, Inc.