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Sodium 3-azidopropyldialkoxysilanolate - A versatile route towards new functional 1,2,3–triazole based hyperbranched polyorganoalkoxysiloxanes
Reactive & Functional Polymers ( IF 4.5 ) Pub Date : 2020-05-30 , DOI: 10.1016/j.reactfunctpolym.2020.104648
Dmitry Migulin , Sergey Milenin , Georgy Cherkaev , Alexey Zezin , Elena Zezina , Aziz Muzafarov

A new type of hybrid organosilicone polymer combining the coordination ability of triazole rings with the advantages of the highly branched topological structure of the flexible polysiloxane backbone was synthesized, characterized and exploited for the formation and stabilization of silver nanoparticles.

In this study a series of functional 3-azidopropylethoxysiloxanes and poly-1,2,3-triazoleorganoethoxysiloxanes with controlled molecular architectures were synthesized and characterized for the first time using controlled condensation of the new AB2-type sodiumoxo-3-azidopropyldiethoxysilane monomer and the Copper(I)-catalyzed azide-alkyne cycloaddition “Click chemistry” process. The new 1,2,3-triazole-based hybrid polymers with a functional hyperbranched polyethoxysiloxane polymer backbone showed the ability to stabilize ultrasmall silver nanoparticles.

The synthesized structures were characterized using 29Si NMR, 1H NMR, FTIR, Mass-spectrometry, and GPC. Polymer nanocomposites with the stabilized silver nanoparticles were characterized by transmission electron microscopy (TEM).



中文翻译:

3-叠氮基丙基二烷氧基硅烷醇钠-通往新型功能性1,2,3-三唑基超支化聚有机烷氧基硅氧烷的通用途径

合成了一种新型的杂化有机硅聚合物,结合了三唑环的配位能力和柔性聚硅氧烷骨架的高度支化拓扑结构的优点,并对其进行了表征和开发,以用于银纳米颗粒的形成和稳定化。

在这项研究中,合成了一系列具有受控分子结构的功能性3-叠氮基丙基乙氧基硅氧烷和聚1,2,3-三唑有机乙氧基硅氧烷,并首次使用新型AB 2型钠氧代-3-叠氮基丙基二乙氧基硅烷单体与乙二胺的缩合反应进行了表征。铜(I)催化的叠氮化物-炔烃环加成“点击化学”过程。具有功能性超支化聚乙氧基硅氧烷聚合物骨架的新型1,2,3-三唑基杂化聚合物具有稳定超细银纳米颗粒的能力。

使用29 Si NMR,1 H NMR,FTIR,质谱和GPC对合成的结构进行表征。具有稳定的银纳米粒子的聚合物纳米复合材料的特征是通过透射电子显微镜(TEM)。

更新日期:2020-05-30
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