Refractive index engineering of polymer by dispersing nanoparticles

Masamichi Tokutake, Kyoji Komatsu, Okihiro Sugihara, Toshikuni Kaino, Nobuyuki Kambe

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)


To control refractive indices of polymer for optical waveguides, TiO 2 nanoparticles were introduced to transparent epoxy resin. The surface of TiO 2 nanoparticles was treated by silane coupling agent: 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane. After mixing the surface-treated TiO 2 nanoparticles with diglycidyl ether of bisphenol A, the epoxy groups were crosslinked with the phthalic anhydride. SEM images suggested that TiO 2 nanoparticles were uniformly dispersed in the polymer matrix. Refractive index of nanocomposites was linearly increased with an increase in TiO 2 nanoparticles content. Refractive index of obtained nanocomposites went up to 1.77.

Original languageEnglish
Number of pages2
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sep 202005 Sep 22


Other54th SPSJ Symposium on Macromolecules


  • Hybrid material
  • Refractive index
  • TiO nanoparticle

ASJC Scopus subject areas

  • Engineering(all)


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