A covalent organic/inorganic hybrid proton exchange polymeric membrane: Synthesis and characterization

M. Luisa Di Vona*, Debora Marani, Alessandra D'Epifanio, Enrico Traversa, Marcella Trombetta, Silvia Licoccia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

76 Scopus citations


Commercial polyetheretherketone (Victrex PEEK) was sulfonated up to 90% degree of sulfonation (DS), then reacted with SiCl4 to obtain a hybrid polymer. The product was characterized by 29Si NMR and ATR/FTIR spectroscopies demonstrating the formation of covalent bonds between the organic and inorganic components. No dispersed inorganic silicon was present in the product as evidenced by the lack of any resonance at δ<-100 ppm. Despite the high DS the physicochemical properties of the hybrid were suitable for the preparation of membranes exhibiting high and stable conductivity values (10-2 S/cm), hence suitable for application as ion exchange membrane.

Original languageEnglish (US)
Pages (from-to)1754-1758
Number of pages5
Issue number6
StatePublished - Feb 24 2005
Externally publishedYes

Bibliographical note

Funding Information:
Thanks are due to Ms Cadia D'Ottavi for her valuable technical assistance and to Dr Marco Grotti (University of Genova) for performing Elemental Analysis. The financial support of MIUR (FISR) is acknowledged.


  • Organic/inorganic hybrid polymer
  • Polyetheretherketone (PEEK)
  • Proton exchange membrane

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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