引用本文:
郭瑞, 赛明泽, 张敏, 钟士亮, 马文涛, 陈蕾, 丁德润. 壳聚糖接枝聚乙烯吡咯烷酮复合碘膜的制备及其性能[J]. 应用化学,
2015, 32(5): 498-503.
doi:
10.11944/j.issn.1000-0518.2015.05.140307
Citation: GUO Rui, SAI Mingze, ZHANG Min, ZHONG Shiliang, MA Wentao, CHEN Lei, DING Derun. Preparation and Performance of Chitosan Grafted Polyvinyl Pyrrolidone Film with Iodine[J]. Chinese Journal of Applied Chemistry, 2015, 32(5): 498-503. doi: 10.11944/j.issn.1000-0518.2015.05.140307
Citation: GUO Rui, SAI Mingze, ZHANG Min, ZHONG Shiliang, MA Wentao, CHEN Lei, DING Derun. Preparation and Performance of Chitosan Grafted Polyvinyl Pyrrolidone Film with Iodine[J]. Chinese Journal of Applied Chemistry, 2015, 32(5): 498-503. doi: 10.11944/j.issn.1000-0518.2015.05.140307
壳聚糖接枝聚乙烯吡咯烷酮复合碘膜的制备及其性能
摘要:
壳聚糖(CTS)在N2气保护下以偶氮二异丁酸二甲酯(AIBME)为引发剂接枝聚乙烯吡咯烷酮(PVP),加碘乙醇溶液并与明胶溶液共混制备CTS-PVP复合碘膜。通过红外(IR)、扫描电子显微镜(SEM)、紫外-可见(UV-Vis)、差示扫描量热法(DSC)等技术手段对其表征。UV结果表明,CTS/PVP复合碘膜在200~600 nm之间具有强吸收。其玻璃化转变温度为319℃,具有很好的热稳定性。抑菌性测试表明其抑菌度随着加碘量的增加而增大,当CTS-PVP-I2复合液体积≥10 mL时,其对金黄色葡萄球菌和大肠杆菌的抑菌环直径均在16~36mm之间,为高度敏感,具有良好的杀菌效果。
English
Preparation and Performance of Chitosan Grafted Polyvinyl Pyrrolidone Film with Iodine
Abstract:
The CTS-PVP film with iodine was prepared by chitosan(CTS) grafted polyvinyl pyrrolidone(PVP) in the protection of N2 with dimethyl 2,2'-azobis(2-methylpropionate)(AIBME) as initiator followed by addition of a certain amounts of iodine in ethanol solution and a gelatin solution.The properties of the film were characterized by infrared(IR),scan electron microscopy(SEM),UV-visible spectroscopy(UV-Vis),differential scanning calorimetry(DSC),etc.The UV-Vis spectrum shows a strong absorption between 200~600 nm for the CTS-PVP film with iodine.The glass transition temperature at 319℃ indicates a good thermal stability.The antimicrobial test result shows that the inhibition zone diameters increase along with the increasing amounts of CTS-PVP-I2 complex liquid.The inhibition zone diameters against Staphylococcus aureus and Escherichia coli are in the range of 16~36mm,when the added volume of CTS-PVP-I2 complex fluid is 10 mL or more,implying its high sensitivity and good antibacterial properties.
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Key words:
- chitosan
- / iodine
- / film
- / antibacterial properties
- / functional materials
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