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

doi:10.2494/photopolymer.28.163

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 journal › Article › peer-review

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 language	English
Pages (from-to)	163-167
Number of pages	5
Journal	Journal of Photopolymer Science and Technology
Volume	28
Issue number	2
DOIs	https://doi.org/10.2494/photopolymer.28.163 https://doi.org/10.2494/photopolymer.28.779
Publication status	Published - 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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title = "Development of a novel preparation method for highly porous heat-resistant rigid polymer network films and evaluation of their properties",

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.",

keywords = "Film, Network polymer, Poly(p-phenylene benzobisoxazole), Polycondensation, Rigid polymer",

author = "Tetsuya Uchida and Ryo Ikeda and Tomoaki Suzuk and Ryotaro Nakayama",

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AB - 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.

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