Sulfonation of PIM-1 - Towards Highly Oxygen Permeable Binders for Fuel Cell Application

Title
Sulfonation of PIM-1 - Towards Highly Oxygen Permeable Binders for Fuel Cell Application
Authors
김병각헨켄스마이어디억김형준장종현남석우임태훈
Keywords
sulfonation; electrode binder; PIM; polymer of intrinsic microporosity; polymer electrolyte fuel cell (PEFC)
Issue Date
2014-01
Publisher
Macromolecular research
Citation
VOL 22, NO 1, 92-98
Abstract
The development of alternative, non-fluorinated membranes for polymer electrolyte membrane fuel cells necessitates the co-development of a non-fluorinated electrode catalyst binder to ensure compatibility between membrane and electrode. However, most hydrocarbon based polymers have lower gas permeability than perfluorinated Nafion. In this work we tried to obtain a sulfonated, non-fluorinated binder based on PIM-1 (polymer of intrinsic microporosity 1) which has up to 2000 times higher permeability than Nafion. However, sulfonation was not straightforward and often led to degradative side reactions. Sulfonated polymers were too brittle to give stable membranes and the highest experimental IEC was 1.03 meq/g, significantly lower than the theoretical IEC of 3.2 meq/g (2 sulfonic acid groups per repeat unit).
URI
http://pubs.kist.re.kr/handle/201004/46987
ISSN
15985032
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE