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Facile synthesis of multifunctional Ag-nanocomposite poly(HIPE) foam via emulsion template method
Reactive & Functional Polymers ( IF 4.5 ) Pub Date : 2021-07-30 , DOI: 10.1016/j.reactfunctpolym.2021.105004
Xiaotong Li 1 , Liqin Cao 1 , Bin Wu 2 , Yong Dong 1 , Jide Wang 1 , Liu-ping Chen 3
Affiliation  

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(AM-co-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 μm. 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.



中文翻译:

乳液模板法合成多功能银纳米复合聚(HIPE)泡沫

设计适用于实现互连多孔整料的高效纳米颗粒稳定剂仍然是一个挑战。在此,Ag-纳米复合聚高内相乳液(HIPE)模板很容易通过O/W HIPE获得,银纳米粉(Ag-NPs)和聚乙烯吡咯烷酮稳定。以环己烷为油相,N,N'-亚甲基双丙烯酰胺为交联剂,丙烯酰胺(AM)与2-丙烯酰胺-2-甲基丙磺酸(AMPS)在水相中进行自由基共聚,引发通过过硫酸钾。因此,Ag-纳米复合共聚物聚 (HIPE)s [Ag/P(AM- co-AMPS)]是通过一锅合成法获得的。研究了Ag-NP含量和不同内相体积对多孔复合材料的影响。对复合材料的形貌和结构进行表征,测得平均孔径约为 60 μm。此外,通过亚甲蓝 (MB) 的催化降解研究了催化活性。通过使用含有 5 wt% Ag-NPs 的复合材料, MB 溶液的脱色可以在 8 分钟内完成。复合聚(HIPE)对大肠杆菌金黄色葡萄球菌(9 mm抑菌圈)具有一定的抗菌活性。此外,压缩电灵敏度(GF = 2.05) 表现出增强的导电性。因此,提出了一种多功能大孔银纳米复合材料聚 (HIPE) 的简便方法。

更新日期:2021-08-05
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