| 以巯基改性聚酰胺-胺树形分子为稳定剂制备纳米银溶胶 |
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| 引用本文： | 赵辉,包华.以巯基改性聚酰胺-胺树形分子为稳定剂制备纳米银溶胶[J].医学教育探索,2007(5):657-661. |
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| 作者姓名： | 赵辉 包华 |
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| 作者单位： | 华东理工大学材料科学与工程学院超细材料制备和应用教育部重点实验室;Polymer;Center;Tomas;Bata;University;Zlin;Czech;Republic; |
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| 基金项目： | 中捷政府间科技合作项目(项目编号:37-09) |
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| 摘 要： | 用巯基乙酸甲酯改性3.0~5.0代聚酰胺-胺(PAMAM)树形大分子,用红外、拉曼光谱、核磁共振氢谱和元素分析对其进行了表征。借助巯基端基与银离子的配位作用,以巯基改性PAMAM为稳定剂,硼氢化钠为还原剂,还原AgNO3制备了纳米银溶胶,并用紫外-可见光谱和透射电镜对其分散性和稳定性进行了研究。结果表明:制备的纳米银具有较好的分散性和稳定性。
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| 关 键 词： | 聚酰胺-胺树形分子 巯基 稳定剂 纳米银 |
Preparation of Nano-Silver Colloid Stabilized by Thiol-Modified PAMAM |
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| Nabanita Sah,Petr Sah,ZHAO Hui,BAO Hu,Nabanita Sah,Petr Saha.Preparation of Nano-Silver Colloid Stabilized by Thiol-Modified PAMAM[J].Researches in Medical Education,2007(5):657-661. |
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| Authors: | Nabanita Sah Petr Sah ZHAO Hui BAO Hu Nabanita Sah Petr Saha |
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| Institution: | 1.Key Laboratory for Ultrafine Materials of Ministry of Education;School of Materials Science and Engineering;East China University of Science and Technology;Shanghai 200237;China;2.Polymer Center;Tomas Bata University in Zlin;Czech Republic |
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| Abstract: | Generation 3.0 to 5.0 poly(amidoamine)(PAMAM) dendrimers were modified with(methyl)-mercaptoacetate,and the obtained thiol-modified PAMAM was characterized by FT-IR spectrometer,Raman spectrometer,()~1H-NMR and element analysis.Based on the complexation of silver ions with terminal thiol groups,nano-silver colloids were prepared through reduction of AgNO_3 with NaHB_4 in the pre-(sence) of thiolmodified PAMAM as a stabilizer.The dispersibility and stability of nano-sliver colloids was investigated by UV-Vis... |
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