Abstract

Dimethyl amino ethyl methacrylate was grafted onto chitosan using gamma irradiation technique. The grafting (%) was increased with irradiation dose increment. The presences of Cu⁺² and Ag⁺ with different concentrations (1 and 2%) in the properties of composites were examined. The prepared copolymers composites were characterized by FTIR, TGA, SEM, XRD and the electrical conductivity. The TGA indicates improvement of thermal stability for chitosan-g-PDMAEMA/metals ions composite. Crystallinity and swelling (%) of the grafted samples decreased with increasing the grafting level. Also the electrical conductivity chitosan-g-PDMAEMA/Ag⁺ (2%) composite have enhanced properties than original chitosan-g-PDMAEMA and chitosan-g-PDMAEMA/Cu⁺² copolymers composite.

中文翻译：

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γ射线制备的壳聚糖/二甲基氨基甲基丙烯酸乙酯/金属复合材料的电导率

摘要

使用伽马射线辐照技术将甲基丙烯酸二甲基氨基乙酯接枝到壳聚糖上。接枝率（％）随辐照剂量的增加而增加。研究了复合材料性能中不同浓度（分别为1％和2％）的Cu ⁺²和Ag ⁺的存在。通过FTIR，TGA，SEM，XRD和电导率对制备的共聚物复合材料进行了表征。在TGA表示热稳定性的改进壳聚糖克-PDMAEMA /金属离子复合物。接枝样品的结晶度和溶胀度（％）随接枝水平的提高而降低。另外，导电性壳聚糖克-PDMAEMA /银⁺（2％）比原始壳聚糖复合具有提高的性能克-PDMAEMA和壳聚糖-g- PDMAEMA / Cu ⁺²共聚物复合材料。