Open AccessProton Exchange Membranes by Radiation-Induced Graft Copolymerization of Monomers into Teflon-FEP Films
Author(s) -
Bhuvanesh Gupta,
Guenther G. Scherer
Publication year - 1994
Publication title -
chimia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.387
H-Index - 55
eISSN - 2673-2424
pISSN - 0009-4293
DOI - 10.2533/chimia.1994.127
Subject(s) - copolymer , membrane , grafting , monomer , acrylic acid , styrene , polymer chemistry , proton , materials science , chemical engineering , radiation , chemistry , polymer , composite material , biochemistry , physics , quantum mechanics , engineering
A state-of-the-art in radiation-induced graft copolymerization of styrene and acrylic acid monomers into Teflon-FEP films is presented with a view to develop proton exchange membranes for various applications. This process offers an easy control over the composition of a membrane by careful variation in radiation dose, dose rate, monomer concentration, and temperature of the grafting reaction. By varying the nature and the amount of the grafted content, it is possible to achieve a membrane with desired physico-chemical properties. In this paper, a correlation among the degree of grafting, structural changes, and properties of graft copolymer membranes is discussed.