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>Radiation‐grafted polymers for biomaterial applications. II. The morphology and structure of 2‐hydroxyethyl methacrylate and ethyl methacrylate homopolymer grafts
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Radiation‐grafted polymers for biomaterial applications. II. The morphology and structure of 2‐hydroxyethyl methacrylate and ethyl methacrylate homopolymer grafts
AbstractThe 2‐hydroxyethyl methacrylate (HEMA)/ethyl methacrylate (EMA) graft copolymer system has been found to be a useful model for investigating blood/polymer interactions. Studies of the structure of both HEMA and EMA radiation‐grafted regions were conducted using extraction methods and transmission electron microscopy of selectively stained HEMA grafts. The effect of the extraction procedure on the surface topography of HEMA‐ or EMA‐grafted films was studied by means of scanning electron microscopy. The existence of internal cells in the bulk of the HEMA network was demonstrated, and their osmotic nature was investigated. As grafting proceeds, the HEMA network becomes increasingly porous. The extraction studies carried out on EMA grafted showed that with this system an increasingly dense structure is obtained as grafting p
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机译:摘要甲基丙烯酸2-羟乙酯(HEMA)/甲基丙烯酸乙酯(EMA)接枝共聚物体系是研究血液/聚合物相互作用的有用模型。使用提取方法和选择性染色的 HEMA 移植物的透射电子显微镜对 HEMA 和 EMA 辐射移植区域的结构进行研究。采用扫描电子显微镜研究了提取过程对HEMA或EMA接枝膜表面形貌的影响。证明了HEMA网络主体中内部细胞的存在,并研究了它们的渗透性质。随着移植的进行,HEMA网络变得越来越多孔。对EMA接枝进行的提取研究表明,通过该系统,接枝p
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