Development of a novel preparation method for highly porous heat-resistant rigid polymer network films and evaluation of their properties

Tetsuya Uchida, Ryo Ikeda, Tomoaki Suzuk, Ryotaro Nakayama

Research output: Contribution to journalArticle

Abstract

A rigid polymer network of poly(p-phenylene benzobisoxazole) (PBO) has excellent mechanical properties and thermal stability. Many nano voids exist within the network. However, a PBO network cannot be formed into films or fibers. Generally, PBO networks are prepared by one-step polycondensation in polyphosphoric acid. In this study, we have prepared a PBO network by a two-step method involving polymerization of a PBO network precursor (pre-PBO network) in N-methyl-2-pyrrolidone followed by thermal cyclization. Heat-resistant porous PBO network films have been successfully obtained by this two-step method. The properties of the PBO network films have been evaluated.

Original languageEnglish
Pages (from-to)163-167
Number of pages5
JournalJournal of Photopolymer Science and Technology
Volume28
Issue number2
DOIs
Publication statusPublished - Aug 19 2015

Keywords

  • Film
  • Network polymer
  • Poly(p-phenylene benzobisoxazole)
  • Polycondensation
  • Rigid polymer

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Organic Chemistry

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