Surface free energies and dispersion state of silsesquioxane nanofiller in polymer hybrid thin films

Nao Hosaka, Hideyuki Otsuka, Naoya Torikai, Atsushi Takahara

Research output: Contribution to conferencePaper

Abstract

Surface free energy of a nanofiller is an important factor to control the property of polymer nanohybrid materials. In this study, cyclopentyl substituted polyhedral oligomeric silsesquioxane (CpPOSS) was used as a nanofiller. CpPOSS model surface was prepared on a silicon substrate by immobilization of cyclopentyltrimethoxysilane on a silicon substrate, and the surface free energies of the POSS model surfaces were evaluated from static contact angle measurements. In addition, the dispersion structure of CpPOSS in polystyrene (PS) thin films is discussed. Neutron reflectivity measurement revealed that CpPOSS segregated to the film surface because CpPOSS has lower surface energy than PS. CpPOSS also segregated to the film-substrate interface. The dispersion state of CpPOSS in the films, which can change the morphology and enrgetics of the films, seems to contribute to the thermal stability of the films.

Original languageEnglish
Number of pages1
Publication statusPublished - Oct 18 2006
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: May 24 2006May 26 2006

Other

Other55th SPSJ Annual Meeting
CountryJapan
CityNagoya
Period5/24/065/26/06

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Hosaka, N., Otsuka, H., Torikai, N., & Takahara, A. (2006). Surface free energies and dispersion state of silsesquioxane nanofiller in polymer hybrid thin films. Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan.