| CHARACTERIZATION OF AMPHIPHILIC AND MICROPHASE SEPARATED GRAFT COPOLYMERS Ⅱ SURFACE CHARACTERIZATION AND IN VITRO BLOOD-COMPATIBILITY ASSESSMENT OF POLYSTYRENE-GRAFT-ω-STEARYLPOLY (ETHYLENE OXIDE)* |
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| 引用本文： | 邱永兴,俞小洁,封麟先,杨士林. CHARACTERIZATION OF AMPHIPHILIC AND MICROPHASE SEPARATED GRAFT COPOLYMERS Ⅱ SURFACE CHARACTERIZATION AND IN VITRO BLOOD-COMPATIBILITY ASSESSMENT OF POLYSTYRENE-GRAFT-ω-STEARYLPOLY (ETHYLENE OXIDE)*[J]. 高分子科学, 1995, 0(2): 112-125 |
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| 作者姓名： | 邱永兴 俞小洁 封麟先 杨士林 |
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| 作者单位： | Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou 310027 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China and the State Education Committee of China. |
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| 摘 要： | This paper reported the research results concerning the surface characterization ofpolystyrene-graft-w-stearyl poly(ethylene oxide) (PS-g-SPEO) by means of XPS,contactangle measurement and TEM, and its in vitro blood compatibility assessment by measuringthe plasma recalcification time (RT) and partial thromboplastin time (PTT). The XPSresults demonstrated that the surface and bulk composition of the PS-g-SPEO graftcopolymers differ remarkably from each other,and that SPEO component was constantlyenriched at the copolymer/air interface. Contact angle studies indicated that the surfacewater wettability can be adjusted effectively by changing the composition of the copolymer.PS-g-SPEO graft copolymers can undergo microphase separation as clearly illustrated byTEM photographs. The relationship between the surface properties of PS-g-SPEO graftcopolymer and its blood compatibility was also discussed.
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| 收稿时间： | 1993-12-06 |
CHARACTERIZATION OF AMPHIPHILIC AND MICROPHASE SEPARATED GRAFT COPOLYMERS Ⅱ SURFACE CHARACTERIZATION AND IN VITRO BLOOD-COMPATIBILITY ASSESSMENT OF POLYSTYRENE-GRAFT-ω-STEARYLPOLY (ETHYLENE OXIDE)* |
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| QIU Yongxing,YU Xiaojie,FENG Linxian,YANG Shilin. CHARACTERIZATION OF AMPHIPHILIC AND MICROPHASE SEPARATED GRAFT COPOLYMERS Ⅱ SURFACE CHARACTERIZATION AND IN VITRO BLOOD-COMPATIBILITY ASSESSMENT OF POLYSTYRENE-GRAFT-ω-STEARYLPOLY (ETHYLENE OXIDE)*[J]. Chinese Journal of Polymer Science, 1995, 0(2): 112-125 |
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| Authors: | QIU Yongxing YU Xiaojie FENG Linxian YANG Shilin |
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| Affiliation: | Department of Polymer Science and Engineering; Zhejiang University; Hangzhou |
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| Abstract: | This paper reported the research results concerning the surface characterization ofpolystyrene-graft-w-stearyl poly(ethylene oxide) (PS-g-SPEO) by means of XPS,contactangle measurement and TEM, and its in vitro blood compatibility assessment by measuringthe plasma recalcification time (RT) and partial thromboplastin time (PTT). The XPSresults demonstrated that the surface and bulk composition of the PS-g-SPEO graftcopolymers differ remarkably from each other,and that SPEO component was constantlyenriched at the copolymer/air interface. Contact angle studies indicated that the surfacewater wettability can be adjusted effectively by changing the composition of the copolymer.PS-g-SPEO graft copolymers can undergo microphase separation as clearly illustrated byTEM photographs. The relationship between the surface properties of PS-g-SPEO graftcopolymer and its blood compatibility was also discussed. |
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| Keywords: | Polystyrene-g-w-stearyl-poly (ethylene oxide) Surface properties Graft copolymer Blood compatible material |
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