Mixed Matrix Membranes from Crosslinked Poly(vinyl alcohol)(PVA) Composited with Zeolite 4A Grafted with Poly(2-hydroxyethyl methacrylate)(zeolite-g-PHEMA)

Santi Khoonsap; Paveena Khansawai; Sittipong Amnuaypanich

doi:10.4028/www.scientific.net/AMR.93-94.137

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 93-94Mixed Matrix Membranes from Crosslinked Poly(vinyl...

Mixed Matrix Membranes from Crosslinked Poly(vinyl alcohol)(PVA) Composited with Zeolite 4A Grafted with Poly(2-hydroxyethyl methacrylate)(zeolite-g-PHEMA)

Abstract:

The mixed matrix membranes were prepared from crosslinked PVA embedded with zeolite 4A that was grafted with PHEMA. The PHEMA was grafted onto the zeolite surface by first, attaching the vinyl-silane onto the zeolite surface and subsequently polymerizing HEMA monomer via the free-radical polymerization. The FT-IR spectroscopy confirmed the successful grafting of PHEMA on the zeolite. The grafting percentage determined by thermalgravimetry analysis (TG) was found to increase with the amount of HEMA monomer. The membrane swelling in water and pure acetone revealed the decreasing trend with increased the zeolite loading. Examined by DSC, the amount of non-freezing bound water decreased with increasing the zeolite in the membranes.

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Periodical:

Advanced Materials Research (Volumes 93-94)

Pages:

137-140

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.93-94.137

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Online since:

January 2010

Authors:

Santi Khoonsap, Paveena Khansawai, Sittipong Amnuaypanich

Keywords:

Mixed Matrix Membrane (MMM), Poly(2-Hydroxyethyl Methacrylate), Poly(vinyl alcohol), Surface Modification, Zeolite 4A

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