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Hyperconnected molecular glass network architectures with exceptional elastic properties.

Abstract：

: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. The proposed molecular design strategy applies to any materials system wherein the mechanical properties are controlled by the underlying network connectivity.

journal_name

Nat Commun

journal_title

Nature communications

authors

Burg JA,Oliver MS,Frot TJ,Sherwood M,Lee V,Dubois G,Dauskardt RH

doi

10.1038/s41467-017-01305-w

subject

Has Abstract

pub_date

2017-10-18 00:00:00

pages

1019

issue

1

issn

2041-1723

pii

10.1038/s41467-017-01305-w

journal_volume

8

pub_type

杂志文章

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