形貌转录法制备Ag-P(AM-co-MAA)复合微球

doi:10.3866/PKU.WHXB20111020

物理化学学报 >> 2011, Vol. 27 >> Issue (10): 2485-2492.doi: 10.3866/PKU.WHXB20111020

形貌转录法制备Ag-P(AM-co-MAA)复合微球

夏慧芸¹, 张颖², 高莉宁¹, 颜录科¹

1. 长安大学材料科学与工程学院, 交通铺面材料教育部工程研究中心, 西安 710061;
2. 陕西师范大学化学与材料科学学院, 应用表面与胶体化学教育部重点实验室, 西安 710062

收稿日期:2011-06-07 修回日期:2011-07-07 发布日期:2011-09-27
通讯作者: 夏慧芸 E-mail:xiahy@chd.edu.cn
基金资助:
国家自然科学基金(20903015), 中央高校基本科研业务费专项资金（CHD2009JC147, CHD2009JC132）和长安大学基础研究支持计划专项基金资助

Ag-P(AM-co-MAA) Composite Microspheres Based on Morphology Transcription Method

XIA Hui-Yun¹, ZHANG Ying², GAO Li-Ning¹, YAN Lu-Ke¹

1. Engineering Research Center of Transportation Materials, Ministry of Education, Schol of Materials Science and Engineering, Chang'an University, Xi?an 710061, P. R. China;
2. Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, P. R. China

Received:2011-06-07 Revised:2011-07-07 Published:2011-09-27
Contact: XIA Hui-Yun E-mail:xiahy@chd.edu.cn
Supported by:
The project was supported by the National Natural Science Foundation of China (20903015), Special Fund for Basic Scientific Research of Central Colleges, China (CHD2009JC147, CHD2009JC132) and Basic Research Support Program, Chang'an University, China

摘要/Abstract

摘要： 以反相悬浮聚合技术合成的丙烯酰胺(AM)和甲基丙烯酸(MAA)共聚高分子微凝胶P(AM-co-MAA)为模板, 结合反胶束法制备得到Ag₃PO₄-P(AM-co-MAA)复合微球, 并将其分散于乙醇溶剂中通过化学还原Ag₃PO₄-P(AM-co-MAA)复合微球制备得到粒径为几十微米, 具有表面图案, 且结构为核-壳型的Ag-P(AM-co-MAA)复合微球材料. 能量散射X射线(EDX)谱表明壳化学组成以金属银为主, 核以高分子模板为主; 扫描电子显微镜(SEM)观察结果表明银-高分子复合微球的表面形貌与其前驱体类似, 且可以通过选择模板、改变模板组成、调整金属难溶银盐沉积量等因素加以调控; X射线衍射(XRD)分析表明前驱体复合微球表面Ag₃PO₄全部转化为单质银. 生物抗菌实验表明该类微球材料对大肠杆菌、金黄色葡萄球菌均具有较强的抑制作用.

关键词: 银, 磷酸银, 复合微球, 形貌转录, 核-壳结构, 抗菌

Abstract: Ag₃PO₄-P(AM-co-MAA) composite microspheres were prepared by the combination of a polymeric microgel method and a reverse micelle technique. Novel silver-poly(acrylamide-co-methacrylic acid) [Ag-P(AM-co-MAA)] composite microspheres with sizes ranging in the tens of micrometers and containing a patterned surface as well as core/shell structures were prepared by the chemical reduction of Ag₃PO₄-P(AM-co-MAA) composite microspheres in ethanol. Energy dispersive X-ray (EDX) analysis revealed that the chemical composition of the"shell"is dominated by Ag, but the"core"is dominated by the template, P(AM-co-MAA). Scanning electron microscopy (SEM) results demonstrate that the surface morphology of the Ag-polymer composite microspheres is similar to that of their precursors and can be controlled to a certain extent by varying the composition of the template copolymer, the approaches and the amount of Ag₃PO₄ deposited. X-ray diffraction (XRD) indicated that the salt had been completely converted to Ag. Biological antimicrobial experiments showed that this kind of composites exhibit distinctive antibacterial activity toward Escherichia coli and Staphylococcus aureus.

Key words: Silver, Silver phosphate, Composite microspheres, Morphology transcription, Core-shell structure, Antibacterial

MSC2000:

O648

夏慧芸, 张颖, 高莉宁, 颜录科,. 形貌转录法制备Ag-P(AM-co-MAA)复合微球[J]. 物理化学学报, 2011, 27(10): 2485-2492.

XIA Hui-Yun, ZHANG Ying, GAO Li-Ning, YAN Lu-Ke. Ag-P(AM-co-MAA) Composite Microspheres Based on Morphology Transcription Method[J]. Acta Phys. -Chim. Sin., 2011, 27(10): 2485-2492.

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形貌转录法制备Ag-P(AM-co-MAA)复合微球

Ag-P(AM-co-MAA) Composite Microspheres Based on Morphology Transcription Method

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