形貌转录法制备Ag-P(AM-<em>co</em>-MAA)复合微球

引用本文: 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. doi: 10.3866/PKU.WHXB20111020 shu

Citation: 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 Physico-Chimica Sinica, 2011, 27(10): 2485-2492. doi: 10.3866/PKU.WHXB20111020 shu

形貌转录法制备Ag-P(AM-co-MAA)复合微球

基金项目:
国家自然科学基金(20903015) (20903015)

中央高校基本科研业务费专项资金（CHD2009JC147, CHD2009JC132)

长安大学基础研究支持计划专项基金资助

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:

English

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

1.
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 Date: 07 June 2011
Available Online: 27 September 2011
Fund Project:
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)

长安大学基础研究支持计划专项基金资助

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:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

形貌转录法制备Ag-P(AM-co-MAA)复合微球

English

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

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

形貌转录法制备Ag-P(AM-co-MAA)复合微球

English

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

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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