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Dendronised polymer architectures for fuel cell membranes

In English

Författare

  • Mads M. Nielsen
  • Ivaylo Dimitrov
  • Shogo Takamuku
  • Patric Jannasch
  • Katja Jankova
  • Søren Hvilsted

Summary, in English

Multi-step synthetic pathways to low-ion exchange capacity (IEC) polysulfone (PSU) with sulfonic acid functionalized aliphatic dendrons and sulfonated comb-type PSU structures are developed and investigated in a comparative study as non-fluorinated proton exchange membrane (PEM) candidates. In each case the side chains are synthesized and introduced in their sulfonated form onto an azide-functionalized PSU via click chemistry. Three degrees of substitution of each architecture were prepared in order to evaluate the dependence on number of sulfonated side chains. Solution cast membranes were evaluated as PEMs for use in fuel cells by proton conductivity measurements, and in the case of dendronized architectures: thermal stability. The proposed synthetic strategy facilitates exploration of a non-fluorous system with various flexible side chains where IEC is tunable by the degree of substitution.

Publiceringsår

2013

Språk

Engelska

Sidor

342-354

Publikation/Tidskrift/Serie

Fuel Cells

Volym

13

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

John Wiley & Sons Inc.

Ämne

  • Chemical Sciences

Nyckelord

  • Click Chemistry
  • Fuel Cells
  • Polysulfone
  • Proton Conductivity
  • Sulfonic Acid

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1615-6854