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Phenomenological study on sol–gel transition of linear low density polyethylene in organic solvents
Author(s) -
Okabe Masaru,
Isayama Munetoshi,
Matsuda Hideomi
Publication year - 1985
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.1985.070301220
Subject(s) - decalin , comonomer , polymer , materials science , linear low density polyethylene , polymer chemistry , thermodynamics , low density polyethylene , polyethylene , copolymer , glass transition , tetralin , chemical engineering , chemistry , organic chemistry , composite material , catalysis , physics , engineering
Solutions of linear low density polyethylenes in organic solvents formed thermoreversible gels on cooling. Gel‐melting temperatures of the polymers in tetralin, decalin, and o ‐xylene were measured. They increased slowly with increasing polymer concentration. Experimental data were analyzed by the thermodynamic theory of Takahashi, Nakamura, and Kagawa, which is derived for the gel‐melting temperature of a crystalline linear copolymer gel. A plot of the gel‐melting temperature by the theory depended considerably on the kind of comonomer of the polymer.