Sulphonated poly(ether ether ketone): Synthesis and characterisation
Source abstract
Abstract
Abstract The paper describes the sulphonation of commercially available poly(ether ether ketone) PEEK (GATONETM, Gharda Chemicals Limited, India and VICTREX®, ICI Limited, UK) by using concentrated sulphuric acid. The concentration of GATONE in conc. H2SO4 was varied from 4‐10% (w/v) whereas in VICTREX® the concentration was 4% (w/v). The temperature was varied from 35‐55°C and the duration of reaction was 3‐7 h. Structural characterisation of sulphonated polymers was done by elemental analysis, FT‐IR and 1H‐NMR spectroscopy. On the basis of elemental analysis, the extent of sulphonation of GATONE was found to be 57‐75%. The extent of sulphonation as determined by 1H‐NMR in case of GATONE was in the range of 53‐80% and for VICTREX 58‐87%. Thermal analysis, proton conductivity and water uptake of these samples were also studied. Proton conductivity of the films was comparable to the perflourinated polymer (Nafion).
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Research context
OpenAlex topics: Fuel Cells and Related Materials · Hydraulic and Pneumatic Systems · Membrane-based Ion Separation Techniques
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References (20)
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