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Proton conducting polysulfone ionomers carrying sulfoaryloxybenzoyl side chains

In English

Författare

Summary, in English

Novel proton conducting ionomers have been prepared by attaching pendant sulfonated aromatic side chains to polysulfone. Lithiated polysulfone was first reacted with 4-fluorobenzoic acid chloride to introduce 4-fluorobenzoyl side chains to the polymer main chain. Next, the activated fluoro groups were replaced by 4-sulfophenoxy or 7-sulfo-2-naphthoxy in a potassium carbonate-mediated nucleophilic substitution reaction. This reaction proceeded under full conversion and the degree of substitution was easily controlled by the degree of lithiation in the first step. Membranes based on ionomers carrying one sulfophenoxybenzoyl unit per polymer repeat unit reached a proton conductivity exceeding 30 mS center dot cm(-1) at 120 degrees C under immersed conditions.

Publiceringsår

2005

Språk

Engelska

Sidor

1464-1468

Publikation/Tidskrift/Serie

Macromolecular Rapid Communications

Volym

26

Issue

18

Dokumenttyp

Artikel i tidskrift

Förlag

John Wiley & Sons Inc.

Ämne

  • Chemical Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1022-1336