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

Xiao Lei Wang; Jun Fu Wei; Yan Ming Yang; Huan Zhang; Guo Yang Shi

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

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 129-131Preparation and Characterization of Negatively...

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

Abstract:

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.

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Advanced Materials Research (Volumes 129-131)

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295-300

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.129-131.295

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Online since:

August 2010

Authors:

Xiao Lei Wang, Jun Fu Wei, Yan Ming Yang, Huan Zhang, Guo Yang Shi

Keywords:

AMPS, Negatively Charged Membrane, Polysulfone, Rejection, Uv Irradiation

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