Chandrasekhar, Vadapalli ; Krishnan, Venkatasubbaiah ; Bindu, Ravindranathan ; Murthy, Varanasi S. R. (2002) Single-step synthesis of chemically cross-linked polysilastyrene and its conversion to β -silicon carbide Journal of the American Ceramic Society, 85 (2). pp. 504-506. ISSN 0002-7820
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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1151-...
Related URL: http://dx.doi.org/10.1111/j.1151-2916.2002.tb00123.x
Abstract
A new method for chemically cross-linking polysilastyrene using divinylbenzene as the cross-linking agent is reported. The procedure involves a single-step synthesis using the alkali-metal sodium to promote the polymerization of dimethyldichlorsilane in the presence of the comonomers phenylmethyldichlorosilane and divinylbenzene. The cross-linked polymer can be readily converted to β-SiC on pyrolysis at 1500° C. The β -SiC obtained by this procedure is nanocrystalline and has a grain-size distribution of 8-20 nm.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Ceramic Society. |
| Keywords: | Silicon Carbide; Polymers; Polymerization; Pyrolysis |
| ID Code: | 8983 |
| Deposited On: | 29 Oct 2010 12:05 |
| Last Modified: | 29 Oct 2010 12:05 |
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