COMPOSITIONAL HETEROGENEITY OF ETHYLENE OXIDE-BUTYLENE TEREPHTHALATE SEGMENTED COPOLYMER*

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COMPOSITIONAL HETEROGENEITY OF ETHYLENE OXIDE-BUTYLENE TEREPHTHALATE SEGMENTED COPOLYMER*

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- COMPOSITIONAL HETEROGENEITY OF ETHYLENE OXIDE-BUTYLENE TEREPHTHALATE SEGMENTED COPOLYMER*
- Vol. 17, Issue 3, Pages: 271-280(1999)
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- Published：20 June 1999
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COMPOSITIONAL HETEROGENEITY OF ETHYLENE OXIDE-BUTYLENE TEREPHTHALATE SEGMENTED COPOLYMER*[J]. 1999, 17(3): 271-280.
DOI：

COMPOSITIONAL HETEROGENEITY OF ETHYLENE OXIDE-BUTYLENE TEREPHTHALATE SEGMENTED COPOLYMER*[J]. 1999, 17(3): 271-280. DOI：

摘要

A series of ethylene oxide-butylene terephthalate (EOBT) segmented copolymers with differentsoft segment length and hard segment content were synthesized. The compositional heterogeneity was studiedby solvent extraction. The results show that the compositional heterogeneity increases when soft segmentlength and hard segment content increase. The compositional heterogeneity is also reflected in thecrystallization behavior and morphology of soft and hard segment in EOBT segmented copolymer. The more composition behavior and morphology of soft and hard segment in EOBT segmented copolymer.The more compositional heterogeneous the EOBT segmented copolymer is

the more different the morphology and the crystallization behavior between separated fractions.Compared with ethylene oxide-ethylene terephthalate (EOET) segmented copolymer

compositional heterogeneity in EOBT segmented copolymer is weaker.But the compositional heterogeneity in EOBT segmented copolymer with long soft segment and high hard segment content is still obvious.

Abstract

the more different the morphology and the crystallization behavior between separated fractions.Compared with ethylene oxide-ethylene terephthalate (EOET) segmented copolymer

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