Magnetic-field-induced alignment of syndiotactic polystyrene

Naofumi Naga, Yoshie Saito, Keiichi Noguchi, Kohki Takahashi, Kazuo Watanabe, Masafumi Yamato

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Magnetic-field-induced alignment of syndiotactic polystyrene (sPS) is reported here. Isothermal crystallization of sPS samples from several annealing temperatures was conducted in a 2 or 10 T magnetic field. The isothermal crystallization of low-molecular-weight sPS samples from the annealing temperature, which induced self-seeding, achieved effective alignment of the polymer chains. Azimuthal scans of the samples crystallized in the magnetic field revealed that the b-axis of the β-phase unit cell was aligned parallel to the magnetic field. A low sPS molecular weight and a high magnetic field were effective for a high degree of alignment. Stepwise crystallization from the annealing temperature also induced effective alignment of the sPS.

Original languageEnglish
Pages (from-to)709-714
Number of pages6
JournalPolymer Journal
Volume48
Issue number6
DOIs
Publication statusPublished - 2016 Jun 1

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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    Naga, N., Saito, Y., Noguchi, K., Takahashi, K., Watanabe, K., & Yamato, M. (2016). Magnetic-field-induced alignment of syndiotactic polystyrene. Polymer Journal, 48(6), 709-714. https://doi.org/10.1038/pj.2016.21