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A New Completely Condensed Silsesquioxane: Diphenyl-Silsesquioxane

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Abstract:

In this paper, diphenyl-silsesquioxane was synthesized and characterized. Firstly, octa-isobutyl silsesquioxane endo-disilanol (OIBS-EDN) containing two Si-OH functions was formed by base-catalyzed cleavage of octa-isobutyl silsesquioxane (OIBS). Then, oligomeric silsesquioxane containing two phenyl functions (DPS) was prepared by adding diphenyldichlorosilane to the solution of OIBS-EDN in right proportion with the presence of trithylamine in THF. The products were characterized by FTIR, 1HNMR, 13CNMR, 29SiNMR, X-ray diffraction, EA, DSC and GPC respectively. The results show that difunctional POSS with clear structure and high yield can be prepared by this process. And a new simple and feasible approach to design and synthesize difunctional POSS was put forward.

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AICAM 2005 View Preview

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Periodical:

Advanced Materials Research (Volumes 11-12)

Pages:

327-330

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.11-12.327

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Online since:

February 2006

Authors:

Qi Fang Li, Bo Dao Shi, Hai Ping Geng

Keywords:

Silsesquioxane Synthesis Characterization

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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