Hyperconnected molecular glass network architectures with exceptional elastic properties

Burg, Joseph A.; Oliver, Mark S.; Frot, Theo J.; Sherwood, Mark; Lee, Victor; Dubois, Geraud; Dauskardt, Reinhold H.

doi:10.1038/s41467-017-01305-w

Title: Hyperconnected molecular glass network architectures with exceptional elastic properties

Journal Article · 18 October 2017 · Nature Communications

DOI: https://doi.org/10.1038/s41467-017-01305-w · OSTI ID:1499684

Burg, Joseph A. ^[1]; Oliver, Mark S. ^[1]; Frot, Theo J. ^[2]; Sherwood, Mark ^[2]; Lee, Victor ^[2]; Dubois, Geraud ^[3]; Dauskardt, Reinhold H. ^[1]

Stanford Univ., Stanford, CA (United States)
IBM Almaden Research Center, San Jose, CA (United States)
Stanford Univ., Stanford, CA (United States); IBM Almaden Research Center, San Jose, CA (United States)

Hyperconnected network architectures can endow nanomaterials with remarkable mechanical properties that are fundamentally controlled by designing connectivity into the intrinsic molecular structure. For hybrid organic–inorganic nanomaterials, here we show that by using 1,3,5 silyl benzene precursors, the connectivity of a silicon atom within the network extends beyond its chemical coordination number, resulting in a hyperconnected network with exceptional elastic stiffness, higher than that of fully dense silica. The exceptional intrinsic stiffness of these hyperconnected glass networks is demonstrated with molecular dynamics models and these model predictions are calibrated through the synthesis and characterization of an intrinsically porous hybrid glass processed from 1,3,5(triethoxysilyl) benzene. Altogether, the proposed molecular design strategy applies to any materials system wherein the mechanical properties are controlled by the underlying network connectivity.

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Research Organization:: Stanford Univ., CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: FG02-07ER46391

OSTI ID:: 1499684

Journal Information:: Nature Communications, Vol. 8, Issue 1; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 18 works

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Highly Transparent Multifunctional Bilayer Coatings on Polymers Using Low-Temperature Atmospheric Plasma Deposition Cui, Linying; Lionti, Krystelle; Ranade, Alpana ACS Nano, Vol. 8, Issue 7 https://doi.org/10.1021/nn502161p	journal	June 2014
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