Divinylbenzene has been used as a cross-linking agent to chemically cross-link polysilastyrene involving a single-step synthesis.
The alkali-metal, sodium, is used to promote the polymerization of dimethyldichlorosilane in the presence of the comonomers phenylmethyl-dichlorosilane and divinylbenzene. The cross-linked polymer can be readily converted to ß-SiC on pyrolysis at 1500°C. The ß-SiC obtained by this procedure is nanocrystalline and has a grain-size distribution of 8-20 nm.
DVB may improve ceramic processing by increasing strength via cross-linking raw materials.
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Divinylbenzene (DVB)
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Divinylbenzene (DVB)
