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首页> 外文期刊>e-Polymers >In situ formation of silver nanoparticles based on dendriticlinear amphiphilic block copolymer micellar templates
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In situ formation of silver nanoparticles based on dendriticlinear amphiphilic block copolymer micellar templates

机译：基于树枝状线性两亲嵌段共聚物胶束模板的银纳米粒子原位形成

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摘要

Dendritic-linear amphiphilic block copolymer, G1-b-PEG, was synthesized through a convergent method. The first generation benzylic dendritic polyether, G1-Cl, was synthesized, and benzylic dendritic polyether, G1-Cl, was used to react with linear monohydroxyl terminated MPEG in alkaline solution via a convergent method. The copolymer was characterized by 1H-NMR. The amphiphilic block copolymer could self-assemble into micelles in aqueous solution, which were used as templates to prepare dispersed silver nanoparticles in water. The morphology and structure of the hybrids were characterized by transmission electron microscopy (TEM) and ultraviolet spectroscopy (UV), 1H-NMR. An absorbance peak at 406 nm appeared after reduction in the UV spectrum. The average diameter of G1-B-PEG /Ag hybrid micelles was 186 nm, and the sliver nanoparticles are stable in aqueous solution due to the stabilization of the dendritic-linear micelles.
机译：通过收敛法合成了树枝状-线性两亲嵌段共聚物G1-b-PEG。合成了第一代苄基树枝状聚醚G1-Cl，并使用收敛性方法，在碱性溶液中使用苄基树枝状聚醚G1-Cl与线性单羟基封端的MPEG反应。该共聚物通过1 H-NMR表征。两亲性嵌段共聚物可以在水溶液中自组装成胶束，用作模板以制备分散在水中的银纳米颗粒。通过透射电子显微镜（TEM）和紫外光谱（UV），1 H-NMR表征了杂种的形态和结构。 UV光谱降低后，在406nm处出现吸收峰。 G1-B-PEG / Ag杂化胶束的平均直径为186nm，并且由于树枝状-线性胶束的稳定，银纳米颗粒在水溶液中是稳定的。

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