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Multi-block sulfonated poly(phenylene) copolymer proton exchange membranes

Patent ·
OSTI ID:1037756

Improved multi-block sulfonated poly(phenylene) copolymer compositions, methods of making the same, and their use as proton exchange membranes (PEM) in hydrogen fuel cells, direct methanol fuel cells, in electrode casting solutions and electrodes. The multi-block architecture has defined, controllable hydrophobic and hydrophilic segments. These improved membranes have better ion transport (proton conductivity) and water swelling properties.

Research Organization:
Sandia National Laboratories
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,110,636
Application Number:
12/425,413
OSTI ID:
1037756
Country of Publication:
United States
Language:
English

References (4)

Ionomeric Poly(phenylene) Prepared by Diels−Alder Polymerization:  Synthesis and Physical Properties of a Novel Polyelectrolyte journal June 2005
Chemistry of Cyclopentadienones journal June 1965
Transport in sulfonated poly(phenylene)s: Proton conductivity, permeability, and the state of water journal May 2006
Solid‐state synthesis of highly conducting polyphenylene from crystalline oligomers journal October 1980