Facile synthesis of multifunctional Ag-nanocomposite poly(HIPE) foam via emulsion template method

文献类型： 外文期刊

第一作者： Li, Xiaotong

作者： Li, Xiaotong;Cao, Liqin;Dong, Yong;Wang, Jide;Wu, Bin;Chen, Liu-ping

作者机构：

关键词： HIPE; PVP; Ag-NPs; 2-Acrylamido-2-methylpropanesulfonic acid; Monolith; Nanocomposite; Antibacterial; Monolithic conductive sponge

期刊名称：REACTIVE & FUNCTIONAL POLYMERS （ 影响因子：3.975； 五年影响因子：3.914 ）

ISSN： 1381-5148

年卷期： 2021 年 167 卷

页码：

收录情况： SCI

摘要： Designing efficient nanoparticle-based stabilizer that is suitable for achieving an interconnected porous monolith still remains a challenge. Herein, Ag-nanocomposite poly high-internal phase emulsion (HIPE) template was readily obtained by O/W HIPE, co-stabilized by silver nano powders (Ag-NPs) and polyvinyl pyrrolidone. Cyclohexane as oil phase, N, N'-methylenebisacrylamide as a crosslinking agent, and free-radical copolymerization of acrylamide (AM) and 2-acrylamide-2-methyl propane sulfonic acid (AMPS) were used in the water phase, which was initiated by potassium persulfate. Thus, Ag-nanocomposite copolymer poly(HIPE)s [Ag/P(AMco-AMPS)] were obtained via a one-pot synthesis method. The effects of Ag-NP content and different internal phase volume on the porous composites were investigated. The morphology and structures of the composites were characterized, and the average pore size was measured to be approximately 60 mu m. Furthermore, the catalytic activity was studied via catalytic degradation of the methylene blue (MB). The decolorization of the MB solution can be completed within 8 min by using the composites containing 5 wt% Ag-NPs. The composite poly (HIPE)s had certain antibacterial activity against E. coli and S. aureus bacteria (9 mm zone of inhibition). Moreover, a compression electric sensitivity (GF = 2.05) was exhibited with an enhanced electrical conductivity. Thereby, a facile approach to multifunctional macroporous Ag-nanocomposite poly(HIPE) was presented.

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