Solid-state polycondensation of aromatic polyimide by means of crystallization of oligomers during solution polymerization

Kanji Wakabayashi, Shinichi Yamazaki, Kunio Kimura

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

1 Citation (Scopus)

Abstract

Poly(4,4'-oxydiphenylene pyromelliteimide)(PI(PMDA/DPE)) were prepared from PMDA and DPE as monomers at condition of 0.50% and 280°C in TS10 (mixture of isomers of dibenzyltoluene). Lath-like crystals and particles composed with plate-like crystals were obtained via the crystallization of oligomers during solution polymerization. The products exhibited high crystallinity and high inherent viscosity of 1.17 dig-1. This implies solid-state polymerization effectively progressed in the crystals of oligomer, because the chain ends in the oligomers crystal were advantageously arranged for polycondensation reaction.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages2555
Number of pages1
Volume54
Edition2
Publication statusPublished - 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sep 20 2005Sep 22 2005

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period9/20/059/22/05

Fingerprint

Polycondensation
Oligomers
Polyimides
Crystallization
Polymerization
Crystals
Isomers
Monomers
Viscosity

Keywords

  • Crystallization
  • Kapton
  • Oligomer
  • Phase separation
  • Polyimide
  • Solid-state polymerization

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Solid-state polycondensation of aromatic polyimide by means of crystallization of oligomers during solution polymerization. / Wakabayashi, Kanji; Yamazaki, Shinichi; Kimura, Kunio.

Polymer Preprints, Japan. Vol. 54 2. ed. 2005. p. 2555.

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

Wakabayashi, K, Yamazaki, S & Kimura, K 2005, Solid-state polycondensation of aromatic polyimide by means of crystallization of oligomers during solution polymerization. in Polymer Preprints, Japan. 2 edn, vol. 54, pp. 2555, 54th SPSJ Symposium on Macromolecules, Yamagata, Japan, 9/20/05.
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N2 - Poly(4,4'-oxydiphenylene pyromelliteimide)(PI(PMDA/DPE)) were prepared from PMDA and DPE as monomers at condition of 0.50% and 280°C in TS10 (mixture of isomers of dibenzyltoluene). Lath-like crystals and particles composed with plate-like crystals were obtained via the crystallization of oligomers during solution polymerization. The products exhibited high crystallinity and high inherent viscosity of 1.17 dig-1. This implies solid-state polymerization effectively progressed in the crystals of oligomer, because the chain ends in the oligomers crystal were advantageously arranged for polycondensation reaction.

AB - Poly(4,4'-oxydiphenylene pyromelliteimide)(PI(PMDA/DPE)) were prepared from PMDA and DPE as monomers at condition of 0.50% and 280°C in TS10 (mixture of isomers of dibenzyltoluene). Lath-like crystals and particles composed with plate-like crystals were obtained via the crystallization of oligomers during solution polymerization. The products exhibited high crystallinity and high inherent viscosity of 1.17 dig-1. This implies solid-state polymerization effectively progressed in the crystals of oligomer, because the chain ends in the oligomers crystal were advantageously arranged for polycondensation reaction.

KW - Crystallization

KW - Kapton

KW - Oligomer

KW - Phase separation

KW - Polyimide

KW - Solid-state polymerization

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BT - Polymer Preprints, Japan

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