Preparation and Characterization of Negatively Charged Polysulfone Hollow Fiber Membrane by UV-Photografting Polymerization of AMPS

Abstract:

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Polysulfone (PSf) hollow fiber ultrafiltration (UF) membranes were surface-modified by the UV-induced graft polymerization of 2-acrylamido-2-methylpropanesulfonic acid (AMPS). Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy and scanning electron microscope (SEM) were employed to characterize the structural and morphological changes on the membrane surface. Water contact angle of PSf-g-AMPS membrane surface decreased to 15.45° when AMPS concentration was 2 wt.%, which was nearly 35° lower than that of the unmodified membrane. The results of streaming potential measurement at different pressures implied the negatively charged characteristic of the PSf-g-AMPS membrane. The flux of PSf-g-AMPS membrane increased about 60% as compared to original PSf membrane and the rejection of heparin sodium for PSf-g-AMPS membrane achieved 78%, which was about 4 times that of PSf membrane at 0.04 MPa.

Info:

Periodical:

Advanced Materials Research (Volumes 129-131)

Edited by:

Xie Yi and Li Mi

Pages:

295-300

DOI:

10.4028/www.scientific.net/AMR.129-131.295

Citation:

X. L. Wang et al., "Preparation and Characterization of Negatively Charged Polysulfone Hollow Fiber Membrane by UV-Photografting Polymerization of AMPS", Advanced Materials Research, Vols. 129-131, pp. 295-300, 2010

Online since:

August 2010

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Price:

$35.00

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