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首页> 外文会议>International Conference on Processing amp; Manufacturing of Advanced Materials Pt.4; Jul 7-11, 2003; Leganes, Madrid, Spain >Preparation and Characterization of Chitosan/Alginate Sponge Immobilized onto Polyurethane-g-Acrylic Acid Modified Film Surface as a Wound Dressing
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Preparation and Characterization of Chitosan/Alginate Sponge Immobilized onto Polyurethane-g-Acrylic Acid Modified Film Surface as a Wound Dressing

机译：伤口敷料固定在聚氨酯-g-丙烯酸改性膜表面的壳聚糖/藻酸盐海绵的制备与表征

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摘要

The grafting of acrylic acid (AA) onto polyurethane (PU) films was induced by γ-ray irradiation without degassing to obtain the PU-g-AA modified PU films. The chitosan/alginate (CA) gel was further grafted onto the PU-g-AA modified PU films by using 1ethyl-3- (3-dimethyamino propyl) carbodiimide (EDC). The PU-g-AA modified PU films were characterized by FTIR spectroscopy. The effect of acrylic acid and CA gel grafting on the properties was investigated. The results show that the PU films exhibited were sufficiently strength and that the acrylic acid was grafted onto PU films by γ-ray irradiation. The hydrophility of PU films significantly increased after graft polymerization with γ-ray irradiation.
机译：在不脱气的情况下，通过γ射线辐照将丙烯酸（AA）接枝到聚氨酯（PU）膜上，从而获得PU-g-AA改性的PU膜。通过使用1乙基-3-（3-二甲基氨基丙基）碳二亚胺（EDC）将壳聚糖/藻酸盐（CA）凝胶进一步接枝到PU-g-AA改性的PU膜上。通过FTIR光谱对PU-g-AA改性的PU膜进行表征。研究了丙烯酸和CA凝胶接枝对性能的影响。结果表明，所显示的PU膜具有足够的强度，并且丙烯酸通过γ射线辐照接枝到PU膜上。用γ射线接枝聚合后，PU膜的亲水性显着提高。

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