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Aliphatic polyester miscibility with polyepichlorohydrin
Author(s) -
Fernandes A. C.,
Barlow J. W.,
Paul D. R.
Publication year - 1984
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.1984.070290606
Subject(s) - polyester , miscibility , crystallinity , materials science , glass transition , amorphous solid , melting point depression , melting point , polymer chemistry , composite material , polymer , chemical engineering , organic chemistry , chemistry , engineering
Based on the behavior of the glass transition for blends of polyepichlorohydrin with various aliphatic polyesters, miscible amorphous phases are formed in all cases when the ratio of aliphatic carbons to ester groups in the repeat unit is less than 10 but more than 2. This observation includes selected polyesters with branched and saturated cyclic units in their structure. Interaction parameters deduced from polyester melting point depression were all negative and showed a minimum within this range of polyester molecular structures. The composition dependence of the observed glass transitions was found to be severely influenced by the presence of polyester crystallinity in the blend when heated through the transition region.