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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 shu

Preparation and Performance of Chitosan Grafted Polyvinyl Pyrrolidone Film with Iodine

1.
College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Corresponding author: DING Derun,
Received Date: 3 September 2014
Available Online: 17 December 2014
Fund Project: 国家自然基金资助项目(21305086) (21305086)国家级大学生创新训练计划项目(201310856012)资助 (201310856012)

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.
- chitosan,
- iodine,
- film,
- antibacterial properties,
- functional materials
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