Crosslinked organic/inorganic hybrid proton exchange polymeric membranes

Maria Luisa Di Vona*, Debora Marani, Cadia D'Ottavi, Marcella Trombetta, Enrico Traversa, Isabelle Beurroies, Philippe Knauth, Silvia Licoccia

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

A general, efficient and experimentally simple method for the synthesis of covalently crosslinked class II hybrid polymers based on PolyEtherEtherKetone (PEEK) with a high degree of sulfonation (DS = 0.8) was performed. The synthetic strategy foreseen two steps: the first one, direct sulfonation, led to the introduction of sulfonic acid groups and to the formation of sulfone bridges among repeat units. The second step, lithiation and silylation, led to the formation of covalent bonds between the organic backbone and Si(OH) 3 moieties. The materials were characterized by !H NMR Spectroscopy, ATR/FTIR Spectroscopy, Thermogravimetric Analysis (TGA) and Mass Spectrometry. Preliminary proton conduction measurements in dry conditions were performed. The introduction of silicon groups in the system improved thermal stability.

Original languageEnglish (US)
Pages (from-to)67-73
Number of pages7
JournalMaterials Research Society Symposium Proceedings
Volume885
StatePublished - Aug 23 2006
Event2005 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 28 2005Dec 1 2005

ASJC Scopus subject areas

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

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