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Fractional Crystallization and Phase Segregation in Binary Miscible Poly(butylene succinate)/Poly(ethylene oxide) Crystalline Blends: Effect of Crystallization Temperature
Author(s) -
Pan Pengju,
Zhao Li,
Yang Jinjun,
Inoue Yoshio
Publication year - 2013
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201200006
Subject(s) - crystallization , materials science , supercooling , phase (matter) , chemical engineering , amorphous solid , kinetics , ethylene oxide , poly ethylene , morphology (biology) , polymer chemistry , crystallography , thermodynamics , ethylene , polymer , composite material , copolymer , organic chemistry , chemistry , physics , catalysis , quantum mechanics , engineering , genetics , biology
Abstract The effects of crystallization temperature of PBS ( T IC,PBS ) on the fractional crystallization, phase segregation, and crystalline morphology of PEO in their miscible crystalline/crystalline blends are investigated. The crystallization kinetics and phase segregation of PEO are considerably influenced by T IC,PBS . A higher T IC,PBS results in the crystallization of PEO at an extremely large degree of supercooling and may facilitate the segregation of PEO within the interlamellar regions of PBS. At a high T IC,PBS (e.g., 95 °C), the long period, thickness of amorphous and crystalline layers of PBS increase upon blending with PEO. The T IC,PBS dependence of phase segregation of the PEO component is discussed from a thermodynamic as well as a kinetic perspective.