Anomalous polyimide nanoparticles prepared from blending of unlike polymers

Gufan Zhao; Takayuki Ishizaka; Hitoshi Kasai; Masatoshi Hasegawa; Hachiro Nakanishi; Hidetoshi Oikawa

doi:10.1080/15421400902938951

Anomalous polyimide nanoparticles prepared from blending of unlike polymers

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

Polymer Hybrid Materials Research Center

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Anomalous polyimide (PI) nanoparticles with controllable morphology, i.e., porous hollow structures, hollow structures, or bowl-like structures, were fabricated by blending a second polymer with poly(amic acid) (PAA, the precursor of PI) through the reprecipitation method and subsequent imidization. The phase separation between PAA and the porogen induced the formation of various hollow PI nano-particles. The hollow morphology was mainly affected by the compatibility/ interaction between PAA and the porogen. Hollow PI nanoparticles with superficial pores (ca. 30 nm), smooth surface, or holes in their surfaces can be obtained by selecting a suitable porogen, respectively.

Original language	English
Pages (from-to)	9-17
Number of pages	9
Journal	Molecular crystals and liquid crystals
Volume	504
Issue number	1
DOIs	https://doi.org/10.1080/15421400902938951
Publication status	Published - 2009 Jan 1

Keywords

Bowl-like nanoparticles
Hollow nanoparticles
Polyimide
Polymer blend
Porous hollow nanoparticles
Reprecipitation method

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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abstract = "Anomalous polyimide (PI) nanoparticles with controllable morphology, i.e., porous hollow structures, hollow structures, or bowl-like structures, were fabricated by blending a second polymer with poly(amic acid) (PAA, the precursor of PI) through the reprecipitation method and subsequent imidization. The phase separation between PAA and the porogen induced the formation of various hollow PI nano-particles. The hollow morphology was mainly affected by the compatibility/ interaction between PAA and the porogen. Hollow PI nanoparticles with superficial pores (ca. 30 nm), smooth surface, or holes in their surfaces can be obtained by selecting a suitable porogen, respectively.",

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AU - Zhao, Gufan

AU - Ishizaka, Takayuki

AU - Kasai, Hitoshi

AU - Hasegawa, Masatoshi

AU - Nakanishi, Hachiro

AU - Oikawa, Hidetoshi

PY - 2009/1/1

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Anomalous polyimide nanoparticles prepared from blending of unlike polymers

Abstract

Keywords

ASJC Scopus subject areas

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