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 Patrick Runt

Research output: Contribution to journalArticle

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] (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.

Original languageEnglish (US)
Pages (from-to)29-40
Number of pages12
JournalMacromolecular Symposia
Volume198
DOIs
StatePublished - Aug 1 2003

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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