ISSN:
0959-8103
Keywords:
radiation
;
grafting
;
vinyl monomers
;
fluorinated polymers
;
cationic membranes
;
acrylic acid
;
methacrylic acid
;
poly(tetrafluoroethylene-perfluoropropylvinyl ether)
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Cationic membranes were prepared by direct radiation grafting of acrylic acid (AAc) and methacrylic acid (MAA) onto poly(tetrafluoroethylene-perfluoropropylvinyl ether) (PFA) films, followed by alkaline treatment to confer ionic character in the graft copolymer. The addition of inhibitor such as Mohr's salt, FeCl3 and CuCl2 was used to achieve the complete inhibition of homopolymerization of the monomer. The dependence of the grafting rate on AAc and MAA concentration was found to be of the order of 1.3 and 0.62, respectively. Investigation of the mechanical properties, electrical conductivity, dimensional change and swelling behaviour of the grafted films revealed that such a copolymer could be acceptable in practical use as a cation-exchange membrane.
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
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