共 14 条
Surface modification of poly(styrene-b-(ethylene-co-butylene)-b-styrene) elastomer via UV-induced graft polymerization of N-vinyl pyrrolidone
被引:52
|作者:
Luan, Shifang
[1
]
Zhao, Jie
[1
]
Yang, Huawei
[1
]
Shi, Hengchong
[1
]
Jin, Jing
[1
]
Li, Xiaomeng
[1
]
Liu, Jingchuan
[1
]
Wang, Jianwei
[2
]
Yin, Jinghua
[1
]
Stagnaro, Paola
[3
]
机构:
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
[2] Med Polymer Co Ltd, Shandong Weigao Grp, Weihai 264209, Peoples R China
[3] CNR, Ist Studio Macromol, I-16149 Genoa, Italy
基金:
中国国家自然科学基金;
关键词:
Styrenic block copolymers;
UV-induced graft polymerization;
N-vinyl pyrrolidone (NVP);
Hemocompatibility;
2-METHACRYLOYLOXYETHYL PHOSPHORYLCHOLINE;
PLATELET-ADHESION;
PHOSPHOLIPID POLYMER;
BLOOD COMPATIBILITY;
PROTEIN ADSORPTION;
CHAIN DENSITY;
POLYETHYLENE;
MEMBRANES;
FUNCTIONALIZATION;
BIOCOMPATIBILITY;
D O I:
10.1016/j.colsurfb.2011.12.027
中图分类号:
Q6 [生物物理学];
学科分类号:
071011 ;
摘要:
Poly(N-vinyl pyrrolidone) (PNVP) was covalently grafted onto the surface of biomedical poly(styrene-b-(ethylene-co-butylene)-b-styrene) (SEBS) elastomer via a technique of UV-induced graft polymerization combined with plasma pre-treatment. The surface graft polymerization of N-vinyl pyrrolidone (NVP) was confirmed by ATR-FTIR and XPS. Effect of the parameters of graft polymerization, i.e., the initiator concentration, the UV irradiation time and the monomer concentration on the grafting density was investigated. The morphology and the wettability of the PNVP-modified surfaces were characterized by AFM and DSA, respectively. Protein adsorption and platelet adhesion were obviously suppressed after PNVP was grafted onto the SEBS substrates. (C) 2011 Elsevier B.V. All rights reserved.
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页码:127 / 134
页数:8
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