Chain conformation in the induction period of crystallization of poly(ethylene terephthalate)

M. Imai, K. Kaji, T. Kanaya, Y. Sakai

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The change of chain conformation during the induction period of crystallization of poly(ethylene terephthalate) (PET) has been studied by means of a deuterium-labelling technique with small-angle neutron scattering. The scattering function of a single chain was analyzed based on the worm-like chain model. The stiffness of PET chains increased in the early stage of the induction period. According to the isotropic-nematic transition theory proposed by Doi et al., this increase of the chain stiffness induces the parallel ordering of polymer segments due to the excluded-volume effect. This orientational ordering may play an important role in the growth process of the density fluctuations observed in the induction period of crystallization.

Original languageEnglish
Pages (from-to)718-720
Number of pages3
JournalPhysica B: Physics of Condensed Matter
Volume213-214
Issue numberC
DOIs
Publication statusPublished - 1995 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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