New hydrogenation and metathesis catalysts for nitrile rubbers

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This research proposal is concerned with the development of fundamentally new approaches to low-cost chemical technologies used in the modification of synthetic rubber products, specifically nitrile-butadiene rubbers. These strategies target selective hydrogenation or metathesis of olefinic residues in nitrile-butadiene rubber. Such modifications result in improved heat, oxidation and chemical resistance, enhanced processibility as well as decreasing the cross-linking density, hardness and modulus of the rubber thus improving mechanical properties and providing low temperature flexibility. These process improvements are key issues for material processibility and long-term stability. Moreover, such new chemical technologies will reduce the costs of production and allow the development of new and expanded product markets for nitrile-butadiene rubbers.