novel negatively-charged membrane adsorbers made using combination of photopolymerization and immersion precipitation
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ID: 169575
2016
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Abstract
A novel method combining a traditional immersion precipitation process for
making membranes with photopolymerization and crosslinking of functional
monomers included in the casting solution was used to prepare asymmetric
polyethersulfone membranes with submicron particles incorporating glycidyl
methacrylate copolymer. In order to introduce sulfonic groups epoxide rings
of glycidyl methacrylate were opened using two methods. The first method was
functionalization with sodium sulfite, and the second method was
functionalization with sulfuric acid and then grafting with
2-acrylamido-2-methylpropane sulfonic acid. Obtained membranes were
characterized using infrared spectroscopy, conductometric titration and water
permeability measurements. Scanning electron microscopy and atomic force
microscopy were used to investigate the surface morphology and topology of
membrane. Dynamic adsorption of Rhodamine B as a model dye was used to
demonstrate suitability of these novel membranes for membrane adsorption
since the adsorption capacity for dye cations was much better for both
functionalized membrane with sodium sulfite and grafted membrane with
2-acrylamido-2-methylpropane sulfonic acid compared to the nonfunctionalized
membrane. [Projekat Ministarstva nauke Republike Srbije, br. TR32008 and III
43009]
| Reference Key |
tanja2016journalnovel
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|---|---|
| Authors | ;Tomković Tanja;Radovanović Filip;Grgur Branimir;Nastasović Aleksandra;Vasiljević-Radović Dana;Onjia Antonije |
| Journal | meditsinskaia radiologiia |
| Year | 2016 |
| DOI |
10.2298/JSC150805083T
|
| URL | |
| Keywords |
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