CAJ | 학술논문

以聚乙二醇辛基苯基醚(OP)为表面活性剂，甲基丙烯酸甲酯(MMA)为油相构筑的反相微乳液合成纳米AgCl粒子，然后通过微乳液聚合制备AgCl/PMMA复合胶乳。利用紫外-可见吸收光谱(UV-vis)和透射电镜(TEM)研究微乳液中表面活性剂浓度(c op )、水相中盐浓度(c salt )对纳米AgCl粒子的形成及形貌影响，结果发现合成的AgCl粒子近似球状，粒径在5 nm左右；在反相微乳液中随cop、csalt的增加，形成的纳米AgCl粒子数增多、平均粒径有所减小。AgCl/PMMA复合胶乳对大肠杆菌表现出明显的抗菌活性。通过反相微乳液及其聚合技术制备包含有纳米AgCl的复合胶乳，方法简便、易于放大，所制备的AgCl/PMMA复合胶乳作为抗菌剂具有良好的应用前景。
이취을이순신기분기미(OP)위표면활성제，갑기병희산갑지(MMA)위유상구축적반상미유액합성납미AgCl입자，연후통과미유액취합제비AgCl/PMMA복합효유。이용자외-가견흡수광보(UV-vis)화투사전경(TEM)연구미유액중표면활성제농도(c op )、수상중염농도(c salt )대납미AgCl입자적형성급형모영향，결과발현합성적AgCl입자근사구상，립경재5 nm좌우；재반상미유액중수cop、csalt적증가，형성적납미AgCl입자수증다、평균립경유소감소。AgCl/PMMA복합효유대대장간균표현출명현적항균활성。통과반상미유액급기취합기술제비포함유납미AgCl적복합효유，방법간편、역우방대，소제비적AgCl/PMMA복합효유작위항균제구유량호적응용전경。
Composites containing silver halide nanoparticles have attracted great interest as potential antibacterial materials. AgCl nanoparticles were synthesized in W/O microemulsion using octylphenylpolyethylene glycol (OP) as the emulsifier and methyl methacrylate (MMA) as the oil phase. AgCl/PMMA complex latex was prepared via in situ microemulsion polymerization. Effects of surfactant (cOP) and salt (csalt) concentration on the formation and morphology of AgCl nanoparticles were studied by ultraviolet-visible spectrum and transmission electron microscopy (TEM). Furthermore, the antibacterial effect of AgCl/PMMA latex was evaluated againstE. coli. The results show that the AgCl nanoparticles prepared were spherical with a mean diameter of about 5 nm. The increase ofcOPandcsalt promotes the formation of AgCl nanoparticles with smaller diameter in the W/O microemulsion, which provide the AgCl/PMMA latex good antibacterial activity. This simple and mild preparation method can be easily applied in an industrial scale process. Therefore, the AgCl/PMMA latex prepared is a novel antibacterial latex with great potentially applications.