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Related Experiment Video

Updated: Jul 13, 2026

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
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Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes

Published on: December 15, 2015

Nanostructured anisotropic ion-conductive films.

Kenji Kishimoto1, Masafumi Yoshio, Tomohiro Mukai

  • 1Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

Journal of the American Chemical Society
|March 13, 2003
PubMed
Summary

Researchers developed a flexible film with layered nanostructures using a novel liquid-crystalline monomer. This material exhibits two-dimensional ionic conductivity, paving the way for advanced applications.

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Electrochemistry

Background:

  • Developing advanced materials with controlled nanostructures is crucial for novel electronic applications.
  • Ionic conductivity in solid-state materials is essential for next-generation batteries and sensors.
  • Liquid-crystalline monomers offer unique self-assembly properties for creating ordered structures.

Purpose of the Study:

  • To synthesize a flexible, self-standing film with layered nanostructures.
  • To investigate the ionic conductivity properties of the resulting material.
  • To explore the potential of smectic liquid-crystalline monomers in creating ion-conducting materials.

Main Methods:

  • In situ photopolymerization of a novel smectic liquid-crystalline monomer containing a tetra(oxyethylene) moiety.

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  • Formation of a macroscopic complex with lithium salts.
  • Characterization of the film's nanostructure and ionic conductivity.

    • Main Results:

    • A flexible, self-standing film with well-defined layered nanostructures was successfully obtained.
    • The film demonstrated significant two-dimensional ionic conductivity.
    • The tetra(oxyethylene) moiety facilitated complex formation with lithium salts, enabling ionic transport.

    Conclusions:

    • The developed material offers a promising platform for flexible ion-conducting devices.
    • In situ photopolymerization of liquid-crystalline monomers is an effective strategy for creating ordered nanostructured materials.
    • The observed two-dimensional ionic conductivity highlights the potential for applications in solid-state electrolytes.