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A thermolytic route to a polysilyne

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Abstract

We report a safe and convenient method to prepare a new class of network polysilane, or polysilyne ([RSi]n). Simple thermolysis of a readily accessible linear poly(phenylsilane), [PhSiH]n, affords polysilyne [PhSi]n with concomitant evolution of monosilanes. This new polymer shows a hyperbranched structure with unique features not observed in known polysilynes prepared via hazardous Wurtz coupling routes. Despite these differences, our soluble, yellow polysilyne exhibits some important properties associated with the traditional random network structure: it absorbs up to 400 nm in the UV spectrum, yet is stable to photolysis under inert atmosphere. This efficient new synthetic route opens the door to exciting applications for these hyperbranched polymers in materials and device technologies.

Graphical abstract: A thermolytic route to a polysilyne

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Article information


Submitted
28 Aug 2020
Accepted
12 Oct 2020
First published
13 Oct 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

A thermolytic route to a polysilyne

P. T. K. Lee, K. Samedov, R. G. Belli, C. J. Clarke, D. P. Gates and L. Rosenberg, Chem. Commun., 2020, Advance Article , DOI: 10.1039/D0CC05843B

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