Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 148, Issue 3, Pages 548-553Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2014.08.003
Keywords
Polymers; Nanostructures; ESCA; AFM; FTIR
Categories
Funding
- Polish NCN [UM02011/01/N/ST5/03288]
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Dielectric barrier discharge plasma was used to modify track etched poly(ethylene terephthalate) membranes followed by grafting of poly(acrylic acid) and copolymers of acrylic acid and di(ethylene glycol)methyl ether methacrylate. The evaluation by IR and XPS spectroscopies showed that both polymers were successfully grafted to the porous membranes. Determination of permeate fluxes pointed the membranes to have excellent responses to pH changes when grafting yield was not so high. When grafting exceeded 0.1 mg cm(-2) stimuli response gel-filled membranes were formed that could be used for transport of alkaline ions. The best permselectivity was observed for poly(ethylene terephthalate) membranes grafted with 1:2 copolymer of acrylic acid and di(ethylene glycol)methyl ether methacrylate. The dialysis was more effectively facilitated for lithium than for potassium or sodium salts at solution of pH = 5.5. (C) 2014 Elsevier B.V. All rights reserved.
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