Fabrication of polymeric particles composed of two-dimensionally self-assembled nanoparticles by use of a microporous film as a template

Koichi Tamaki, Sachiko Matsushita, Masatsugu Shimomura

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Development of new self-organized preparation method of non-spherical nano or microparticles against the surface tension is a challenging and attractive field in material science. Already our research group has reported fabrication of several kinds of honeycomb-patterned microporous polymer films ("honeycomb films") by the "self-organization" process. By use of the honeycomb films, non-spherical particles composed of a particle array assembled the polymeric spherical nanoparticles were also prepared by self-organization processes. The preparation steps of the nanoparticles-assembled particles were: (1) formation of the two-dimensional single-layered arrays of polymeric spherical nanoparticles in each micropore of a honeycomb film by means of self-assembly of the nanoparticles, (2) connection of the all contacting nanoparticles in each micropore, then (3) peeling of the nanoparticles-interconnected particles from the honeycomb-nanoparticles composite structure. Number of the nanoparticles introduced into a micropore depended on the ratio of diameter of the honeycomb micropore to that of the nanoparticles. In the prepared non-spherical particle, alignment of the spherical nanoparticles was copied from that of the two-dimensional array of the nanoparticles assembled in the honeycomb micropore.

Original languageEnglish
Pages (from-to)630-635
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume313-314
DOIs
Publication statusPublished - 2008 Feb 1
Externally publishedYes

Keywords

  • Fluorescent particles
  • Honeycomb-patterned microporous films
  • Nanometer-sized particles
  • Self-organization process

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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