Membrane Science and Technology

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PS-b-PAA/PLA ordered porous antibacterial film

Authors： ZHU Ting1 CHEN Haiyan1,3 XU Weichao1 ZHANG Ming1,2

Units： 1 School of Chemistry and Chemical Engineering, Yangzhou University, Jiangsu Yangzhou, Zip Code 225002, 2 Yangzhou University test center, Jiangsu Yangzhou, Zip Code 225009, 3Yangzhou Polytechnic College, Jiangsu Yangzhou, Zip Code 225127

KeyWords： atom transfer radical polymerization; amphiphilic block copolymer; PLA; antibacterial films

ClassificationCode：O631；TB324

year,volume(issue):pagination： 2015, 35(4):1-6

Abstract：

Amphiphilic Block copolymers of polystyrene and poly(acrylic acid) were prepared by atom transfer radical polymerization techniques(ATRP). The molecular weights and polydispersities, composition, structure and hydrolytic percentage of the polymers were determined by gel permeation chromatography (GPC), 1HNMR spectra, FT-IR and titration. The as-synthesized amphiphilic PS-b-PAA was introduced to assist the fabrication of ordered porous PLA film. Several influencing factors on the morphology of film were investigated, such as the length of PAA block, the addition content of PS-b-PAA, concentration of solution and relative humidity. Then the pores of PS-b-PAA/PLA films were filled with tea polyphenol to achieve the antibacterial film whose antibacterial performance were evaluated by antibacterial ring method. The results indicated that the presence of film hole and aperture have an impact on load amount of antibacterial agent, which will effect the antibacterial performance.

Funds：

江苏省环境材料与环境工程重点实验室开放课题（K13073）

AuthorIntro：

朱婷（1990-），女，江苏靖江人，硕士研究生。

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