Journal
POLYMER
Volume 50, Issue 15, Pages 3411-3421Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2009.06.011
Keywords
Fuel cells; Phosphonic acid-containing polymers; ATRP
Categories
Funding
- Bundesministerium fur Bildung und Forschung (BMBF), Germany [03SF0309A]
- European project AUTOBRANE
Ask authors/readers for more resources
The synthesis of various block copolymers containing phosphonic acid moieties is described. Poly(styrene)/ PDEVBP AB block copolymers were obtained by atom transfer radical polymerization (ATRP) of diethyl p-vinylbenzyl phosphonate (PDEVBP). Subsequently, BAB block copolymers with tailored architecture composed of the phosphonated monomer and poly(ether ether ketone) were obtained by a combination of polycondensation chemistry and ATRP. The quantitative deprotection of the ethyl phosphonates led to the corresponding free phosphonic acids, which can be applied as polymer electrolyte membranes for fuel cells. In addition, all materials showed high thermal stability. The proton conductivity properties of the ionomers were investigated. The phosphonic acid-containing (co)polymers exhibited a linear increase of the conductivity with the temperature with a maximum value of 4.5 x 10(-4) S/cm in anhydrous conditions. (C) 2009 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available