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Reinforcement from alumina-type fillers precipitated into an elastomer

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Summary

The in-situ precipitation of alumina-type fillers into poly(dimethylsiloxane) is achieved by the hydrolysis of an aluminate, aluminum tri-sec-butoxide, in a reaction paralleling the preparation of silica and titania from silicates and titanates. Both HCl and NH4OH were found to be good catalysts, but the latter produced particles which gave larger increases in ultimate strength of the reinforced elastomers.

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Authors and Affiliations

  1. Department of Chemistry and Polymer Research Center, University of Cincinnati, 45221, Cincinnati, OH, USA

    J. E. Mark & S. -B. Wang

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  1. J. E. Mark
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  2. S. -B. Wang
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Mark, J.E., Wang, S.B. Reinforcement from alumina-type fillers precipitated into an elastomer. Polymer Bulletin 20, 443–448 (1988). https://doi.org/10.1007/BF01153435

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  • DOI: https://doi.org/10.1007/BF01153435

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