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.
Bibliographical noteFunding 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