A Trifunctional Cyclohexasilane for Branched Poly(cyclosilane)s

Coschigano, Marissa G. [Johns Hopkins University, Baltimore, MD (United States)]; Marro, Eric A. [Johns Hopkins University, Baltimore, MD (United States); Thermo Fischer, Fair Lawn, NJ (United States)]; Li, Ruoxi [Johns Hopkins University, Baltimore, MD (United States)]; Gregory, Sydney L. [Johns Hopkins University, Baltimore, MD (United States)]; Gittens, Alexandra F. [Johns Hopkins University, Baltimore, MD (United States)]; Siegler, Maxime A. [Johns Hopkins University, Baltimore, MD (United States)]; Klausen, Rebekka S. [Johns Hopkins University, Baltimore, MD (United States)]

doi:10.1039/d6dt00742b

DOE OSTI · 3029649

A Trifunctional Cyclohexasilane for Branched Poly(cyclosilane)s

Coschigano, Marissa G. [Johns Hopkins University, Baltimore, MD (United States)]·Marro, Eric A. [Johns Hopkins University, Baltimore, MD (United States); Thermo Fischer, Fair Lawn, NJ (United States)]·Li, Ruoxi [Johns Hopkins University, Baltimore, MD (United States)]·Gregory, Sydney L. [Johns Hopkins University, Baltimore, MD (United States)]·Gittens, Alexandra F. [Johns Hopkins University, Baltimore, MD (United States)]·Siegler, Maxime A. [Johns Hopkins University, Baltimore, MD (United States)]·Klausen, Rebekka S. [Johns Hopkins University, Baltimore, MD (United States)]

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Abstract

The poly(cyclosilane)s are a class of hybrid inorganic-organic polymers with an all Si–Si backbone, arranged into repeating cyclohexasilane motifs, and mixed methyl and hydro side chains. The synthesis of a densely functionalized cyclosilane with three-fold symmetry enabled copolymerization studies yielding poly(cyclosilane)s with variable amounts of branching. The properties of the novel branched poly(cyclosilane)s were investigated and it was found that branching led to less volatilization during pyrolysis in an inert atmosphere, suggesting the utility of poly(cyclosilane)s for applications as preceramic polymers.

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Coschigano, Marissa G. [Johns Hopkins University, Baltimore, MD (United States)], Marro, Eric A. [Johns Hopkins University, Baltimore, MD (United States); Thermo Fischer, Fair Lawn, NJ (United States)], Li, Ruoxi [Johns Hopkins University, Baltimore, MD (United States)], Gregory, Sydney L. [Johns Hopkins University, Baltimore, MD (United States)], Gittens, Alexandra F. [Johns Hopkins University, Baltimore, MD (United States)], Siegler, Maxime A. [Johns Hopkins University, Baltimore, MD (United States)], Klausen, Rebekka S. [Johns Hopkins University, Baltimore, MD (United States)]. 2026-04-17. A Trifunctional Cyclohexasilane for Branched Poly(cyclosilane)s. https://doi.org/10.1039/d6dt00742b

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