Scientific Principles of a New Process for Manufacturing Perfluorinated Polymer Electrolytes for Fuel Cells
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Petroleum Chemistry
ISSN: 0965-5441
, E-ISSN: 1531-8532
|
| Output data |
Year: 2012,
Volume: 52,
Number: 7,
Pages: 453-461
Pages count
: 9
DOI:
10.1134/S0965544112070067
|
| Tags |
copolymerization, fuel cell, latex, perfluorinated sulfonated monomer, polymer electrolyte, proton conductivity, tetrafluoroethylene |
| Authors |
Ivanchev S.S.
1
,
Likhomanov V.S.
1
,
Primachenko O.N.
1
,
Khaikin S.Ya.
1
,
Barabanov V.G.
2
,
Kornilov V.V.
2
,
Odinokov A.S.
2
,
Kulvelis Yu.V.
3
,
Lebedev V.T.
3
,
Trunov V.A.
3
|
| Affiliations |
| 1 |
St. Petersburg Department of the Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, pr. Dobrolyubova 14, St. Petersburg, 197198 Russia
|
| 2 |
Institute of Applied Chemistry, pr. Dobrolyubova 14, St. Petersburg, 197198 Russia
|
| 3 |
Konstantinov Institute of Nuclear Physics, Russian Academy of Sciences, Gatchina, St. Petersburg, 188300 Russia
|
|
A new process for manufacturing a perfluorinated polymer electrolyte for proton-conducting membranes of fuel cells is presented. The process is based on the aqueous emulsion copolymerization of tetrafluoroethylene (TFE) with perfluoro(3,6-dioxa-4-methyl-7-octene)sulfonyl fluoride (FS-141) and characterized by a high productivity, reduced consumption of the expensive sulfonated monomer, and the possibility of controlling the equivalent weight (EW) of the resulting copolymer. The copolymers are characterized by a uniform composition in combination with optimal EW values and afford the synthesis of proton conducting membranes for fuel cells with properties comparable with those of commercial Nafion membranes. A mechanism of the copolymerization of TFE with FS-141 in an aqueous emulsion is proposed and confirmed by kinetic and topochemical data.