Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1297596 | Solid State Ionics | 2011 | 4 Pages |
Abstract
MF-4SC membranes containing a 1-30% grafted carbon phase (CPh) were produced by radiation induced polymerization of polyvinyliden chloride (PVDC) with following dehydrochlorination of the grafted polymer. It was shown that the different CPh-distribution in the modified membranes (in the surface layer or in volume) was realized by grafting PVDC into the starting MF-4SC samples with different chemical structures. Water uptake, proton conductivity, water diffusion, methanol- and hydrogen permeability of modified membranes were investigated by different methods as a function of the CPh-content. It was shown that these characteristics depend on the CPh-distribution in the modified membranes. Nearby 1.5 times reduction of methanol permeability was obtained when the CPh-phase surface layers were formed.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Emil F. Abdrashitov, Veslav Ch. Bokun, Yury A. Dobrovolsky, Dina A. Kritskaya, Evgeny A. Sanginov, Ardalion N. Ponomarev,