A novel sulfonated dendritic polymer as the acidic component in proton conducting membranes

Research output: Contribution to journalArticle

Abstract

The present study involves the synthesis of sulfonated poly(3-ethyl-3-(hydroxymethyl)oxetane), sPTMPO, by end-capping the hydroxy-groups in the PTMPO with 1,4-butane sultone. A series of the polymer with different degrees of substitution was investigated. Furthermore, the subsequent use of the sulfonated PTMPO as the acidic component in proton conducting membranes was explored. The membranes were prepared by either a) mixing the partly sulfonated PTMPO with hexamethoxymethyl melamine (HMMM) to form cross-links by ether formation between the methylol groups on HMMM and the remaining hydroxyl groups on the hyperbranched polyether or b) using the sulfonated polyether in conjunction with a pyridine functionalised polysulfone, PSU-pyridine, to produce acid–base blend membranes. Membrane properties such as proton conductivity, water uptake and mechanical properties are discussed.

Details

Authors
  • P Gode
  • A Hult
  • Patric Jannasch
  • M Johansson
  • Lina Karlsson
  • G Lindbergh
  • E Malmström
  • D Sandquist
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Chemical Sciences

Keywords

  • Polymer electrolyte membrane, Hyperbranched, Dendritic, Water uptake, Polysulfone, Conductivity, Fuel cell, PEFC, Blend membranes, PEM
Original languageEnglish
Pages (from-to)787-794
JournalSolid State Ionics
Volume177
Issue number7-8
Publication statusPublished - 2006
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041), Department of Chemistry (011001220)