Nanospace-Mediated Self-Organization of Nanoparticles in Flexible Porous Polymer Templates

Yoshiyuki Kuroda, Itaru Muto, Atsushi Shimojima, Hiroaki Wada, Kazuyuki Kuroda

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Self-organization is a fundamental process for the construction of complex hierarchically ordered nanostructures, which are widespread in biological systems. However, precise control of size, shape, and surface properties is required for self-organization of nanoparticles. Here, we demonstrate a novel self-organization phenomenon mediated by flexible nanospaces in templates. Inorganic nanoparticles (e.g., silica, zirconia, and titania) are deposited in porous polymer thin films with randomly distributed pores on the surface, leaving a partially filled nanospace in each pore. Heating at temperatures beyond the glass transition temperature of the template leads to self-organization of the inorganic nanoparticles into one-dimensional chainlike networks. The self-organization is mediated by the deformation and fusion of the residual nanospaces, and it can be rationally controlled by sequential heat treatments. These results show that a nanospace, defined by the nonexistence of matter, interacts indirectly with matter and can be used as a component of self-organization systems.

Original languageEnglish
Pages (from-to)9137-9143
Number of pages7
JournalLangmuir
Volume33
Issue number36
DOIs
Publication statusPublished - 2017 Sep 12

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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