Morphology control of aromatic polyimide by using reaction-induced phase separation of oligomers

Kanji Wakabayashi, Shinichi Yamazaki, Kunio Kimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We had reported that lozenge-shaped crystals and microspheres of poly(p-phenylene pyromelliteimide) were prepared by means of reaction-induced phase separation of oligomers during solution polymerization. These morphologies could be controlled on the basis of the miscibility between solvent and oligomers. In this paper, we investigated on the morphology control of Kapton by using the phase separation of oligomer during polymerization. Microspheres of Kapton were obtained in an aromatic solvent at a concentration of 3.0 wt/vol%. In contrast to this, lath-like crystals and spheres composed of plate-like crystals were obtained at a concentration of 0.5 wt/vol%. These products exhibited high crystallinity and possessed high heat-resistance. Influences of solvent and polymerization temperature on the morphology were also presented.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages599
Number of pages1
Volume54
Edition1
Publication statusPublished - 2005
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: May 25 2005May 27 2005

Other

Other54th SPSJ Annual Meeting 2005
CountryJapan
CityYokohama
Period5/25/055/27/05

Fingerprint

Oligomers
Polyimides
Phase separation
Polymerization
Microspheres
Crystals
Heat resistance
Solubility
Temperature

Keywords

  • Morphology
  • Phase separation
  • Polyimide

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Morphology control of aromatic polyimide by using reaction-induced phase separation of oligomers. / Wakabayashi, Kanji; Yamazaki, Shinichi; Kimura, Kunio.

Polymer Preprints, Japan. Vol. 54 1. ed. 2005. p. 599.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wakabayashi, K, Yamazaki, S & Kimura, K 2005, Morphology control of aromatic polyimide by using reaction-induced phase separation of oligomers. in Polymer Preprints, Japan. 1 edn, vol. 54, pp. 599, 54th SPSJ Annual Meeting 2005, Yokohama, Japan, 5/25/05.
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