Issue 16, 2012
From the journal:

Journal of Materials Chemistry

Novel polysiloxane and polycarbosilane aerogels viahydrosilylation of preceramic polymers†

Gian Domenico Sorarù,*a   Federico Dalcanale,a   Renzo Campostrini,a   Amélie Gaston,‡a   Yigal Blum,b   Sara Carturanc  and  Parakkulam Ramaswamy Aravind§a  

* Corresponding authors

a Dipartimento di Ingegneria dei Materiali e Tecnologie Industriali, Via Mesiano 77, 38123 Trento, Italy
E-mail: soraru@ing.unitn.it

b SRI International, Menlo Park, CA, USA

c INFN—Laboratori Nazionali di Legnaro, Viale dell'Università 2, 35020 Legnaro, Italy

Abstract

We report new polysiloxane and polycarbosilane aerogels, which have been obtained by crosslinking Si–H-containing polymers with a C[double bond, length as m-dash]C-containing crosslinker via hydrosilylation reactions. The crosslinking reaction has been carried out in a highly diluted solution using up to 97 vol% of solvent. The obtained aerogels have a colloidal structure with meso- and macropores. Density as low as 0.17 g cm−3 has been reached, which implies a porosity of ca. 84 vol%.

Graphical abstract: Novel polysiloxane and polycarbosilane aerogels via hydrosilylation of preceramic polymers

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Article information

DOI
https://doi.org/10.1039/C2JM00020B
Article type
Communication
Submitted
02 Jan 2012
Accepted
28 Feb 2012
First published
16 Mar 2012

J. Mater. Chem., 2012,22, 7676-7680

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Novel polysiloxane and polycarbosilane aerogels via hydrosilylation of preceramic polymers

G. D. Sorarù, F. Dalcanale, R. Campostrini, A. Gaston, Y. Blum, S. Carturan and P. R. Aravind, J. Mater. Chem., 2012, 22, 7676 DOI: 10.1039/C2JM00020B

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