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International Journal of Chemical Engineering
Volume 2012, Article ID 835378, 11 pages
Research Article

Ion-Exchange Membranes Based on Polynorbornenes with Fluorinated Imide Side Chain Groups

1Facultad de Química, Universidad Nacional Autónoma de México, CU, Coyoacán, 04510 México, DF, Mexico
2Facultad de Ingeniería, Universidad Autónoma del Carmen, Avenida Central S/N Esq. con Fracc. Mundo Maya, 24115 Ciudad del Carmen, CAM, Mexico
3Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, CU, Apartado Postal 70-360, Coyoacán, 04510 México, DF, Mexico
4Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain

Received 3 February 2012; Revised 11 April 2012; Accepted 15 April 2012

Academic Editor: Seung Hyeon Moon

Copyright © 2012 Arlette A. Santiago et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The electrochemical characteristics of cation-exchange membranes based on polynorbornenes with fluorinated and sulfonated dicarboximide side chain groups were reported. This study was extended to a block copolymer containing structural units with phenyl and 4-oxybenzenesulfonic acid, 2,3,5,6-tetrafluorophenyl moieties replacing the hydrogen atom of the dicarboximide group. A thorough study on the electrochemical characteristics of the membranes involving electromotive forces of concentration cells and proton conductivity is reported. The proton permselectivity of the membranes is also discussed.