We report new polysiloxane and polycarbosilane aerogels, which have been obtained by crosslinking Si–H-containing polymers with a C=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 cm3 has been reached, which implies a porosity of ca. 84 vol%.
Novel Polysiloxane and Polycarbosilane Aerogels via Hydrosilylation of Preceramic Polymers / Sorarù, Gian Domenico; F., Dalcanale; Campostrini, Renzo; A., Gaston; Y., Blum; S., Carturan; P. R., Aravind. - In: JOURNAL OF MATERIALS CHEMISTRY. - ISSN 0959-9428. - STAMPA. - 22:(2012), pp. 7676-7680. [10.1039/c2jm00020b]
Novel Polysiloxane and Polycarbosilane Aerogels via Hydrosilylation of Preceramic Polymers
Sorarù, Gian Domenico;Campostrini, Renzo;
2012-01-01
Abstract
We report new polysiloxane and polycarbosilane aerogels, which have been obtained by crosslinking Si–H-containing polymers with a C=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 cm3 has been reached, which implies a porosity of ca. 84 vol%.| File | Dimensione | Formato | |
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