Abstract
The olefin metathesis reaction was explored as a novel method to produce cross-linked silicone polymers. Although this reaction is well-known for non-silicone-containing monomers, there are no examples of this reaction in the presence of siloxanes. We have discovered a catalyst system for the reaction of silicone substrates comprised of a 1:4 molar ratio of WCl6/Sn(CH3)4. No metathesis is seen with the traditional ratio of catalyst and cocatalyst. In a model system, 1-hexenylmethylbis(trimethylsiloxy)silane underwent self-metathesis in greater than 75% yield. The catalyst system also promoted metathesis of a hexenyl containing silicone polymer.
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References
B. Hardman and A. Torkelson, inEncyclopedia of Polymer Science and Engineering, 2nd ed. (John Wiley and Sons, CA, 1989), Vol. 15, p. 204.
R. A. Fridman, L. G. Nosakova, L. G. Liberov, and A. N. Bashkirov,Izv. Akad. Nauk SSSR Ser. Khim. 2100 (1971).
B. Marciniec and J. Gulinski,J. Organomet. Chem. 226, C19 (1984).
B. Marciniec, L. Rzejak, J. Gulinski, Z. Foltynowicz, and W. Urbaniak,J. Mol. Catal. 46, 329 (1988).
C. Berglund, Anderson, and R. Larson,J. Organomet. Chem. 316, 61 (1986).
D. W. Smith and K. B. Wagener,Polym. Preprints 33 (2), 112 (1992).
J. P. Collman and L. S. Hegedus,Principles and Applications of Organotransition Metal Chemistry (University Science Books, CA, 1980).
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Stein, J., Lewis, L.N., Lettko, K.X. et al. Cross-linking of hexenyl silicone polymers via the olefin metathesis reaction. J Inorg Organomet Polym 4, 367–376 (1994). https://doi.org/10.1007/BF00683701
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DOI: https://doi.org/10.1007/BF00683701