Fractional Crystallization Kinetics of Poly(ethylene oxide) in Its Blends with Poly(butylene succinate): Molecular Weight Effects | Zendy

Pan Pengju | Zendy; Zhao Li | Zendy; Inoue Yoshio | Zendy

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Fractional Crystallization Kinetics of Poly(ethylene oxide) in Its Blends with Poly(butylene succinate): Molecular Weight Effects

Author(s) -

Pan Pengju,

Zhao Li,

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.201200185

Subject(s) - crystallization , materials science , kinetics , ethylene oxide , chemical engineering , phase (matter) , oxide , polymer chemistry , poly ethylene , ethylene , composite material , copolymer , polymer , organic chemistry , chemistry , catalysis , physics , quantum mechanics , engineering , metallurgy

The fractional crystallization kinetics and phase behavior of PEO with different molecular weights (MWs) in its miscible crystalline/crystalline blends with PBS are studied. Both fractional crystallization kinetics and phase segregation of PEO in PBS/PEO blends are dramatically influenced by its MW. PEO with a medium MW (20 kDa) shows a significant fractional crystallization in the blends with PBS crystallized at a high T IC,PBS , which, however, is dramatically depressed in the blends with a very low or high MW of PEO. This indicates that the PEO component with a medium MW is more ready to segregate into the interlamellar region of PBS crystals than those with a very low or high MW. The MW‐dependent fractional crystallization kinetics and phase segregation of PEO component in the PBS/PEO blends are discussed.

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