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 | |
| 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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Cite this
Uchida, T., Ikeda, R., Suzuk, T., & Nakayama, R. (2015). Development of a novel preparation method for highly porous heat-resistant rigid polymer network films and evaluation of their properties. Journal of Photopolymer Science and Technology, 28(2), 163-167. https://doi.org/10.2494/photopolymer.28.163, https://doi.org/10.2494/photopolymer.28.779