Crosslinked Organic/Inorganic Hybrid Proton Exchange Polymeric Membranes

M.L. Di Vona, Debora Marani, Cadia D’Ottavi, Marcella Trombetta, Enrico Traversa, I. Beurroies, Philippe Knauth, Silvia Licoccia

Research output: Contribution to journalConference articleResearchpeer-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 1H 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
Article number0885-A02-05
JournalMaterials Research Society Symposium Proceedings
Volume885E
Number of pages7
ISSN0272-9172
Publication statusPublished - 2006
Externally publishedYes
Event2005 Material Research Society Fall Meeting & Exhibit - Boston, MA, United States
Duration: 27 Nov 20052 Dec 2005

Conference

Conference2005 Material Research Society Fall Meeting & Exhibit
Country/TerritoryUnited States
CityBoston, MA
Period27/11/200502/12/2005

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