Proton conducting nano hybrid membranes synthesized from temperature tolerant polydimethylsiloxane (PDMS) polymers

Je Deok Kim, Itaru Honma

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Flexible and temperature tolerant nano-hybrid membranes consisting of zirconium (titanium) oxides and polydimethysiloxane (PDMS) with the different molecular mass of 4500 and 600 have been synthesized by sol-gel processes. The membrane of zirconium/PDMS=2 (in molar) showed enhanced thermal stability and flexibility up to 300°C due to the presence of cross-linkable inorganic nano-phase in the hybrid macromolecular matrix. The membrane becomes proton conducting polymer electrolyte when doped with 12-phosphotungstic acid (PWA). The proton conducting properties of the hybrid membranes with various PWA concentration were measured in the temperature range from room temperature to 150°C under saturated humidity conditions. A maximum conductivity of 2×10-2 S/cm was obtained at 150°C when the PDMS/zirconium oxides hybrid matrix was changed to gel state due to the higher water activity at elevated temperatures.

Original languageEnglish
Pages (from-to)255-260
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume788
DOIs
Publication statusPublished - 2003
Externally publishedYes
EventContinuous Nanophase and Nanostructured Materials - Boston, MA., United States
Duration: 2003 Dec 12003 Dec 5

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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