The oxidation of PET track-etched membranes by hydrogen peroxide as an effective method to increase efficiency of UV-induced graft polymerization

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ID: 59800
2015
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Abstract
In this article, we report on functionalization of track-etched membrane based on poly(ethylene terephthalate) (PET TeMs) oxidized by advanced oxidation systems and by grafting of acrylic acid using photochemical initiation technique for the purpose of increasing functionality thus expanding its practical application. Among advanced oxidation processes (H2O2/UV) system had been chosen to introduce maximum concentration of carboxylic acid groups. Benzophenone (BP) photo-initiator was first immobilized on the surfaces of cylindrical pores which were later filled with aq. acrylic acid solution. UV-irradiation from both sides of PET TeMs has led to the formation of grafted poly(acrylic acid) (PAA) chains inside the membrane nanochannels. Effect of oxygen-rich surface of PET TeMs on BP adsorption and subsequent process of photo-induced graft polymerization of acrylic acid (AA) were studied by ESR. The surface of oxidized and AA grafted PET TeMs was characterized by UV-vis, ATR-FTIR, XPS spectroscopies and by SEM.
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korolkov2015thechemical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Korolkov, Il'ya;Taltenov, Abzal;Mashentseva, Anastassiya;Guven, Olgun;
Journal chemical bulletin of kazakh national university
Year 2015
DOI
DOI not found
URL
http://bulletin.chemistry.kz/index.php/kaznu/article/view/624
Keywords
chemistry Organic Chemistry Microbiology Botany toxicology. poisons plant culture

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