Sodium 3-azidopropyldialkoxysilanolate - A versatile route towards new functional 1,2,3–triazole based hyperbranched polyorganoalkoxysiloxanes

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 nanoparti...

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Bibliographic Details
Published in:Reactive & functional polymers 2020-09, Vol.154, p.104648, Article 104648
Main Authors: Migulin, Dmitry, Milenin, Sergey, Cherkaev, Georgy, Zezin, Alexey, Zezina, Elena, Muzafarov, Aziz
Format: Article
Language:English
Subjects:
Alkynes
Backbone
Chemical synthesis
Copper(I)-catalyzed azide-alkyne cycloaddition
Cycloaddition
Heterofunctional condensation
Hyperbranched polyorganosiloxane
Molecular structure
Nanocomposites
Nanoparticles
NMR
Nuclear magnetic resonance
Polymers
Silver
Triazoles
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Summary: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). [Display omitted] •A new type of organosilicone monomer - monosodiumoxo-3-azidopropyldiethoxysilane was developed•Functional poly-3-azidopropylethoxysiloxane and poly-1,2,3-triazoleorganoethoxysiloxane with hyperbranched molecular architectures were synthesized.•Poly-1,2,3-triazoleorganoethoxysiloxane showed the ability to stabilize silver nanoparticles
ISSN:1381-5148
1873-166X
DOI:10.1016/j.reactfunctpolym.2020.104648