Morphology control and characterization of porous polyimide nanoparticles

Gufan Zhao, Takayuki Ishizaka, Hitoshi Kasai, Hidetoshi Oikawa, Hachiro Nakanishi

Research output: Contribution to conferencePaperpeer-review


Porous polyimide (PI) nanoparticles have been successfully prepared by the incorporation of a second polymer as the template into poly(amic acid) (PAA, precursor of PI) via the reprecipitation method. First, porous PAA nanoparticles were generated by the injection of mixed PAA-template solution into cyclohexane. Then PAA was converted to PI by two-step imidization without morphology transformation. The morphology of porous PI nanoparticles, which had superficial pores in the range of 30-100 nm, was affected by the miscibility of PAA and template. The formation mechanism was also discussed.

Original languageEnglish
Number of pages1
Publication statusPublished - 2006
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: 2006 May 242006 May 26


Conference55th SPSJ Annual Meeting


  • Morphology control
  • Polyimide
  • Porous nanoparticle
  • Reprecipitation


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