Blends of poly(ethylene terephthalate) and a polyarylate before and after transesterification | Zendy

Kimura Masao | Zendy; Salee Gideon | Zendy; Porter Rogers S. | Zendy

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Blends of poly(ethylene terephthalate) and a polyarylate before and after transesterification

Author(s) -

Kimura Masao,

Salee Gideon,

Porter Rogers S.

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.1984.070290517

Subject(s) - copolyester , transesterification , crystallinity , materials science , ethylene , poly ethylene , phase (matter) , copolymer , polymer blend , polymer chemistry , amorphous solid , polymer , chemical engineering , composite material , polyester , organic chemistry , chemistry , methanol , catalysis , engineering

Blends of poly(ethylene terephthalate) (PET) and a copolyester of bisphenol A–terephthaloylisophthaloyl (PAr) (2:1:1) have been studied both before and after transesterification. The physical blends exhibit phase separation in their amorphous states: a pure PET phase and a mixed PAr‐rich phase. In spite of this phase separation, PET crystallinity in blends, normalized to PET fraction, surprisingly goes through a maximum at 25% PAr content. The transesterfied copolymers are noncrystallizable and exhibit a single T g between those of starting polymers, PET and PAr.

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