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Phase behavior studies of polyarylate/copolyester blends by thermal and dynamic mechanical analysis
Author(s) -
Golovoy A.,
Cheung M.F.
Publication year - 1989
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.760290202
Subject(s) - copolyester , materials science , differential scanning calorimetry , dynamic mechanical analysis , glass transition , transesterification , melting point , composite material , polymer , ethylene , thermal analysis , phase (matter) , thermal , polymer chemistry , polyester , thermodynamics , organic chemistry , chemistry , catalysis , physics
The phase behavior of polyarylate blends with a copolyester based on poly(1,4‐cyclohexanedimethylene/ethylene terephthalate) was studied by differential scanning calorimetry and dynamic mechanical analysis. A single glass‐transition temperature was observed over the entire composition range. Up to 30% weight polyarylate, the copolyester crystallized readily and its melting point did not change with blend composition. This indicates that transesterification, if it occurred, was negligible. The thermal and dynamic results also suggest a weak polymer‐polymer interaction in this system.