期刊
EUROPEAN POLYMER JOURNAL
卷 49, 期 3, 页码 738-751出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2012.11.018
关键词
Sulfonated polyethersulfone; Hydrophilicity; Anticoagulant activity; Polyethersulfone membrane
资金
- National Natural Science Foundation of China [50973070, 51073105, 30900691]
Sulfonated polyethersulfone (SPES) was synthesized through a feasible way by introducing sulfonic groups onto amino-substituted PES, and characterized by FT-IR, H-1 NMR and GPC. The obtained SPES could be directly blended with PES at any ratios to prepare modified membranes. Scanning electron microscope indicated that the structure of the PES membranes had an obvious change after the modification. The water contact angles of the modified PES membranes decreased from 84 degrees to 68 degrees, and the water fluxes had a dramatic increase from 162 to 1912 mL/m(2) mmHg h when the blended amount of SPES increased from 0 to 2 wt.%. The activated partial thromboplastin time and plasma recalcification time for the modified membranes increased significantly, and the blood platelet adhesion on the PES membrane was largely suppressed after the modification. All these results indicated that the hydrophilicity and the anticoagulant activity of the modified PES membranes were improved, and the modified membranes had a potential to be used in blood purification fields. (C) 2012 Elsevier Ltd. All rights reserved.
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