Počet záznamů: 1

SBA-15 Immobilized Ruthenium Carbenes as Catalysts for Ring Closing Metathesis and Ring Opening Metathesis Polymerization

  1. 1.
    0341739 - UFCH-W 2011 RIV NL eng J - Článek v odborném periodiku
    Bek, David - Žilková, Naděžda - Dědeček, Jiří - Sedláček, J. - Balcar, Hynek
    SBA-15 Immobilized Ruthenium Carbenes as Catalysts for Ring Closing Metathesis and Ring Opening Metathesis Polymerization.
    Topics in Catalysis. Roč. 53, 3-4 (2010), s. 200-209 ISSN 1022-5528
    Grant CEP: GA AV ČR IAA400400805; GA AV ČR KAN100400701
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: ring closing metathesis * ring opening metathesis polymerization * hybrid catalysts
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 2.359, rok: 2010

    New hybrid catalysts for olefin metathesis were prepared by immobilization of Hoveyda-Grubbs type Ru alkylidenes on a siliceous SBA-15 support via exchange of chloro ligands for substituted carboxylates. Catalysts proved a high activity in ring closing metathesis of 1,7-octadiene and diethyl diallylmalonate, reusability and low Ru leaching. In Ring Opening Metathesis Polymerization of norbornene and cyclooctene, SBA-15 supported catalyst gave higher yields of high-molecular-weight polymers than corresponding catalyst with conventional silica support.
    Trvalý link: http://hdl.handle.net/11104/0184630