Gamma-ray co-irradiation induced graft polymerization of NVP and SSS onto polypropylene non-woven fabric and its blood compatibility

被引:15
|
作者
Li, Rong [1 ,2 ]
Wang, Hengdong [1 ]
Wang, Wenfeng [1 ]
Ye, Yin [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
关键词
Polypropylene non-woven fabric; Gamma-ray co-irradiation; Sodium styrenesulfonate; Blood compatibility; Anticoagulation activity; STYRENE-SULFONATE; BINARY MONOMERS; POROUS MEMBRANES; CHITOSAN; COPOLYMERIZATION; POLYTETRAFLUOROETHYLENE; HEMOCOMPATIBILITY; POLYETHERSULFONE; HYDROPHILICITY; IMPROVEMENT;
D O I
10.1016/j.radphyschem.2013.05.034
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Sodium styrenesulfonate was grafted onto PPNWF via gamma-ray co-irradiation method with the existence of N-vinyl-2-pyrrolidone. The effect of absorbed dose, dose rate and concentration of binary monomer on the degree of grafting was investigated. The surface chemical change was characterized by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS). The wettability was characterized through the measurement of adsorption percentage of water and phosphate buffer solution (PBS). The result demonstrated that the grafted poly(NVP-co-SSS) chains can improve the hydrophilicity of PPNWF. Furthermore, the modified PPNWF has good blood compatibility, such as low hemolysis rate, low platelet adhesion and effectively extending the blood coagulation times. Consequently, hydrophilicity and hemocompatibility of PPNWF were greatly enhanced by the immobilization of poly(NVP-co-SSS) chains. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:132 / 137
页数:6
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