Details of structure formation during the induction period of spinodal-type polymer crystallization

Keisuke Kaji, Koji Nishida, Go Matsuba, Toshiji Kanaya, Masayuki Imai

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

An unexpected type of primary crystal nucleation is described, involving spinodal decomposition (SD) type microphase separation due to the orientation fluctuations of rigid segments prior to crystal nucleation. This type of mechanism was found by the present authors about 10 years ago, and recently, it was theoretically revealed by Olmsted et al. to be one of three types of primary crystal nucleation: the well-known homogeneous crystal nucleation directly from the liquid-crystal coexistence domain. which occurs at higher temperatures above the binodal temperature Tb, crystal nucleation after binodal microphase separation between Tb and spinodal temperature Ts, and that after SD below Ts. The detailed experimental results for the spinodal-type crystal nucleation, especially the temperature dependence of characteristic wavelength in SD, are explained as well.

Original languageEnglish
Pages (from-to)709-715
Number of pages7
JournalJournal of Macromolecular Science - Physics
Volume42 B
Issue number3-4 SPEC.
Publication statusPublished - 2003 May 1
Externally publishedYes

Keywords

  • Characteristic wavelength
  • Glass crystallization
  • Melt crystallization
  • Primary crystal nucleation
  • Spinodal decomposition

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Polymers and Plastics
  • Materials Chemistry

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