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Preparation of Two-Layer Anion-Exchange Poly(ethersulfone) Based Membrane: Effect of Surface Modification
Authors: Zárybnická Lucie | Stranska Eliska | Machotová Jana | Lencova Gabriela
Year: 2016
Type of publication: článek v odborném periodiku
Name of source: International Journal of Polymer Science
Publisher name: Hindawi Publishing Corporation
Place: NEW YORK
Page from-to: "8213694-1"-"8213694-8"
Titles:
Language Name Abstract Keywords
cze Příprava dvouvrstvé anion-výměnné membrány na bázi polyethersulfonu: vliv povrchové modifikace Tato práce se týká povrchové modifikace komerční mikrofiltrační membrány na bázi poly(ethersulfonu) pomocí techniky “graft” polymerace. Povrchová vrstva tvořená kopolymerem na bázi styrene divinylbenzenu a 4-vinylbenzylchloridu byla kovalentně navázána na nosič z poly(ethersulfonu) s cílem zlepšit elektrochemické vlastnosti membrán. Membrány byly testovány z hlediska obsahu vody, iontovýměnné kapacity, specifického odporu, permselektivity, FT-IR spektroskopie a SEM analýzy. Membrána z poly(ethersulfonu); povrchová modifikace; graft polymerace
eng Preparation of Two-Layer Anion-Exchange Poly(ethersulfone) Based Membrane: Effect of Surface Modification The present work deals with the surface modification of a commercial microfiltration poly(ethersulfone) membrane by graft polymerization technique. Poly(styrene-co-divinylbenzene-co-4-vinylbenzylchloride) surface layer was covalently attached onto the poly(ethersulfone) support layer to improve the membrane electrochemical properties. Followed by amination, a two-layer anion-exchange membrane was prepared. The effect of surface layer treatment using the extraction in various solvents on membrane morphological and electrochemical characteristics was studied. The membranes were tested from the point of view of water content, ion-exchange capacity, specific resistance, permselectivity, FT-IR spectroscopy, and SEM analysis. It was found that the two-layer anion-exchange membranes after the extraction using tetrahydrofuran or toluene exhibited smooth and porous surface layer, which resulted in improved ion-exchange capacity, electrical resistance, and permselectivity of the membranes. graft-polymerization; transport-properties; plasma treatment; fuel-cells; nanoparticles; selectivity; monovalent

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