Abstract

The preparation of poly[2,6-(1,4-phenylene)-benzobisimidazole] (PPBI) nanofibers was examined using the crystallization of oligomers during isothermal polymerization of selfpolymerizable 2-(1,4-carbophenoxyphenyl)-5,6- diaminobenzimidazole. The polymerization was carried out at 350 8C at a concentration of 1wt.-% for 6 h in three kinds of solvent. The solvent influenced the morphology of PPBI precipitates significantly, and PPBI nanofiber networks were successfully formed in DBT, of which the width ranged from 30 to 110 nm. Molecules were aligned along the long axis of nanofibers. A fibrillar morphology with molecular orientation is ideal for high performance materials such as reinforcements, non-woven fabrics and so on. The nanofiber networks exhibit the highest thermal stability.

Original languageEnglish
Pages (from-to)2226-2232
Number of pages7
JournalMacromolecular Chemistry and Physics
Volume211
Issue number20
DOIs
Publication statusPublished - Oct 15 2010

Fingerprint

Nanofibers
polymerization
reinforcement
oligomers
precipitates
thermal stability
Polymerization
crystallization
preparation
Nonwoven fabrics
Molecular orientation
Crystallization
Oligomers
Precipitates
molecules
Reinforcement
Thermodynamic stability
Molecules

Keywords

  • Fibers
  • Heteroatom-containing polymers
  • High performance polymers
  • Morphology
  • Phase separation

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Condensed Matter Physics

Cite this

Poly[2,6-(1,4-phenylene)-benzobisimidazole] nanofiber networks. / Gong, Jin; Uchida, Tetsuya; Yamazaki, Shinichi; Kimura, Kunio.

In: Macromolecular Chemistry and Physics, Vol. 211, No. 20, 15.10.2010, p. 2226-2232.

Research output: Contribution to journalArticle

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