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    Modification of Polysulfones by Click Chemistry: Zwitterionic Graft Complex and Their Antiprotein Fouling Property

    Year: 2015

    Journal: JOURNAL OF APPLIED POLYMER SCIENCE, Vol. 132, p -, 20170208

    Authors: Xu, Canhong; Gu, Shaojin; Huang, Jingjing; Xu, Weilin; Xia, Huan; Du, Jiehao; Liu, Hongtao; Yang, Hongjun; Zhou, Yingshan; Bai, Zikui

    Organizations: Wuhan Text Univ, Sch Mat Sci & Engn, State Key Lab Breeding Base New Text Mat & Adv Pr, Wuhan 430200, Peoples R China

    A new nonspecific protein antifouling polysulfone (PSU) material has been elaborated by grafting zwitterionic sulfobetaine (SB) complex by the means of PSU azidation (PSU-N-3) followed by Click-Chemistry with acetylenic zwitterionic SB monomer (N,N'-diethyl-N-propargyl-N- (3-sulfopropyl) ammonium (DEPAS)). Azidation (PSU-N-3) and functionalization (PSU-g-DEPAS) PSU materials were characterized by H-1 NMR, Fourier transform infrared spectroscopy, and thermogravimetric analysis. Contact angle and protein adsorption on PSU-g-DEPAS and unmodified PSU membrane were studied. The results show that the chemical modification of PSU improved both the hydrophilicity and antiprotein absorption ability. This new fouling-resistance to protein material has potential for biomaterials applications. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41327.