Abstract

New class of hybrid composite was synthesized via sol-gel process with the combination of poly(vinyl alcohol) (PVA), TEOS, 3- glycidyloxypropyltrimethoxysilane (GPTMS) reacted with the cross-linking agent glutaraldehyde. The composites demonstrated a maximum high proton conductivity of 1.7 × 10 - 2 S cm -1 at 140 °C and a relative humidity of 50% RH. The swelling ratio was calculated in dry and wet conditions, and the composites were found capable of swelling. The structural formation of the composites was studied by techniques such as FTIR, TGA and impedance spectroscopy, and it was concluded that these PVA-SiO 2/GPTMS/GA composite membranes exhibited excellent thermal, mechanical and conductivity properties.

Original languageEnglish
Pages (from-to)88-91
Number of pages4
JournalMaterials Letters
Volume81
DOIs
Publication statusPublished - Aug 15 2012

Fingerprint

hybrid composites
Composite membranes
Polymers
membranes
composite materials
Composite materials
polymers
swelling
Swelling
conductivity
Proton conductivity
Glutaral
sol-gel processes
Sol-gel process
humidity
Atmospheric humidity
alcohols
Alcohols
thermodynamic properties
Spectroscopy

Keywords

  • 3-glycidyloxypropyltrimethoxysilane
  • Poly(vinylalcohol)
  • Proton conductivity
  • TEOS

ASJC Scopus subject areas

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

Cite this

Characterization of hybrid composite membrane based polymer/precursor/ SiO 2 . / Thanganathan, Uma; Nishina, Yuta; Kimura, Kunio; Hayakawa, Satoshi; Bobba, Rambabu.

In: Materials Letters, Vol. 81, 15.08.2012, p. 88-91.

Research output: Contribution to journalArticle

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