Article

High Ionic Conductivity of Transparent Film of Hydroxyapatite and Poly(vinyl alcohol) Nanocomposite

  1. Yoshiro Tajitsu1,*,
  2. Kazuyuki Fukuda2,
  3. Tosiyuku Takaki2

Article first published online: 21 JUL 2008

DOI: 10.1002/masy.200850803

Issue

Macromolecular Symposia

Macromolecular Symposia

Special Issue: Advanced Polymer Materials for Photonics and Electronics

Volume 268, Issue 1, pages 14–18, July 2008

Additional Information

How to Cite

Tajitsu, Y., Fukuda, K. and Takaki, T. (2008), High Ionic Conductivity of Transparent Film of Hydroxyapatite and Poly(vinyl alcohol) Nanocomposite. Macromol. Symp., 268: 14–18. doi: 10.1002/masy.200850803

Author Information

  1. 1

    Graduate School of Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan

  2. 2

    Material Science Laboratory, Mitsui Chemicals, Inc., Chiba, Japan

*Graduate School of Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.

Publication History

  1. Issue published online: 21 JUL 2008
  2. Article first published online: 21 JUL 2008

Funded by

  • Ministry of Education, Culture, Sports, Science and Technology. Grant Number: 18550112

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

Get PDF (232K)

Keywords:

  • films;
  • hydroxyapatite;
  • Ionic conductivity;
  • nanocomposite

Abstract

Summary: Hydroxyapatite (HAp)-polyvinyl alcohol (PVA) nanocomposite film containing Li+ was designed as a solid polymer electrolyte. A composite was prepared by reacting Ca(OH)2 with H3PO4 in the presence of PVA which is denatured in order to have the carboxyl group, and a LiN(CF3SO2)2 was added. HAp particles were commonly formed in the shape of spindles (long axis ca. 80 nm and short axis ca. 25 nm). The obtained nanocomposite film, in which HAp particles were dispersed uniformly, is transparent, flexible and drawable. Its ionic conductivity is about 10−3 S/m at room temperature. This value is very large. This high ionic conductivity is considerable on the basis of the dynamic percolation theory.

Get PDF (232K)