Crystallization and structure formation in polymer blends with strong intermolecular interactions: Blends of poly(ethylene oxide) and styrene-hydroxystyrene copolymers

Jaedong Cho; Ruijian Xu; Fengji Yeh; Benjamin S. Hsiao; James Runt

doi:10.1002/masy.200350804

Crystallization and structure formation in polymer blends with strong intermolecular interactions: Blends of poly(ethylene oxide) and styrene-hydroxystyrene copolymers

Jaedong Cho, Ruijian Xu, Fengji Yeh, Benjamin S. Hsiao, James Runt

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Time-resolved synchrotron wide- and small-angle X-ray scattering experiments were used to investigate crystallization behavior and microstructure development of a nearly monodisperse poly(ethylene oxide) [PEO] (M_w = 53,500), and its melt-miscible blends with two fractionated styrene - hydroxystyrene random copolymers [SHS]. PEO crystallization rates decrease significantly in the presence of the melt-miscible SHS copolymers. All low and high molecular weight SHS blends exhibit a crystallization process at relatively short times characterized by large Avrami exponents (n), followed by a dominant process with n near that of neat PEO. A model for the crystallization of these blends is proposed.

Original language	English (US)
Pages (from-to)	29-40
Number of pages	12
Journal	Macromolecular Symposia
Volume	198
DOIs	https://doi.org/10.1002/masy.200350804
State	Published - Aug 2003

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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abstract = "Time-resolved synchrotron wide- and small-angle X-ray scattering experiments were used to investigate crystallization behavior and microstructure development of a nearly monodisperse poly(ethylene oxide) [PEO] (Mw = 53,500), and its melt-miscible blends with two fractionated styrene - hydroxystyrene random copolymers [SHS]. PEO crystallization rates decrease significantly in the presence of the melt-miscible SHS copolymers. All low and high molecular weight SHS blends exhibit a crystallization process at relatively short times characterized by large Avrami exponents (n), followed by a dominant process with n near that of neat PEO. A model for the crystallization of these blends is proposed.",

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T2 - Blends of poly(ethylene oxide) and styrene-hydroxystyrene copolymers

AU - Cho, Jaedong

AU - Xu, Ruijian

AU - Yeh, Fengji

AU - Hsiao, Benjamin S.

AU - Runt, James

PY - 2003/8

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AB - Time-resolved synchrotron wide- and small-angle X-ray scattering experiments were used to investigate crystallization behavior and microstructure development of a nearly monodisperse poly(ethylene oxide) [PEO] (Mw = 53,500), and its melt-miscible blends with two fractionated styrene - hydroxystyrene random copolymers [SHS]. PEO crystallization rates decrease significantly in the presence of the melt-miscible SHS copolymers. All low and high molecular weight SHS blends exhibit a crystallization process at relatively short times characterized by large Avrami exponents (n), followed by a dominant process with n near that of neat PEO. A model for the crystallization of these blends is proposed.

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Crystallization and structure formation in polymer blends with strong intermolecular interactions: Blends of poly(ethylene oxide) and styrene-hydroxystyrene copolymers

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