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Synthesis and characterization of novel non-oxide sol-gel derived mesoporous amorphous Si-C-N membranes

Völger, Karl W. ; Hauser, Ralf ; Kroke, Edwin ; Riedel, Ralf ; Ikuhara, Yurni H. ; Iwamoto, Yuji (2006):
Synthesis and characterization of novel non-oxide sol-gel derived mesoporous amorphous Si-C-N membranes.
In: JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 114 (1330), pp. 567-570. CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI, 2-22-17 HYAKUNIN-CHO SHINJUKU-KU, TOKYO, 169, JAPAN, ISSN 0914-5400,
[Article]

Abstract

A novel sol-gel-derived preceramic polymer, namely poly (organosilyl) carbodiimide, was synthesized for fabrication of thermally stable amorphous Si-C-N membranes. The gelation process as well as the viscosity of the poly (organosilyl) carbodiimide was adjusted for spin coating by reacting a mixture of alkyl and dialkyl chlorosilane monomers with bis(trimethylsilyl)carbodiimide. The polymeric precursor film was successfully fabricated on a porous substrate by solvent-free spin coating, subsequently converted into a mesoporous amorphous Si-C-N thin film by pyrolysis at 1000 degrees C in Ar. SEM observation as well as N-2 sorption isotherm analysis exhibited the formation of meso-pore channels within the amorphous thin layer. These results indicate that the novel poly (organosilyl) carbodiimide developed in this study is suitable for fabricating meso-porous amorphous membranes in the ternary Si-C-N system and with high thermal and chemical stability.

Item Type: Article
Erschienen: 2006
Creators: Völger, Karl W. ; Hauser, Ralf ; Kroke, Edwin ; Riedel, Ralf ; Ikuhara, Yurni H. ; Iwamoto, Yuji
Title: Synthesis and characterization of novel non-oxide sol-gel derived mesoporous amorphous Si-C-N membranes
Language: English
Abstract:

A novel sol-gel-derived preceramic polymer, namely poly (organosilyl) carbodiimide, was synthesized for fabrication of thermally stable amorphous Si-C-N membranes. The gelation process as well as the viscosity of the poly (organosilyl) carbodiimide was adjusted for spin coating by reacting a mixture of alkyl and dialkyl chlorosilane monomers with bis(trimethylsilyl)carbodiimide. The polymeric precursor film was successfully fabricated on a porous substrate by solvent-free spin coating, subsequently converted into a mesoporous amorphous Si-C-N thin film by pyrolysis at 1000 degrees C in Ar. SEM observation as well as N-2 sorption isotherm analysis exhibited the formation of meso-pore channels within the amorphous thin layer. These results indicate that the novel poly (organosilyl) carbodiimide developed in this study is suitable for fabricating meso-porous amorphous membranes in the ternary Si-C-N system and with high thermal and chemical stability.

Journal or Publication Title: JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
Journal volume: 114
Number: 1330
Publisher: CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI, 2-22-17 HYAKUNIN-CHO SHINJUKU-KU, TOKYO, 169, JAPAN
Uncontrolled Keywords: polymer-derived ceramic (PDC), SiCN ceramic, poly (organosilyl) carbodiimide, sol-gel process, dip-coating, membrane
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 20 Apr 2012 09:27
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