Titlebook: Olefin Metathesis and Polymerization Catalysts; Synthesis, Mechanism Yavuz ?mamo?lu,Birgül Zümreo?lu-Karan,Allan J. Ama Book 1990 Springer

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Tacticity in Polymers Initiated by Metathesis Polymerization: Effect of Catalyst which the propagating metal-carbene complex has a chiral metal centre. Results are presented for the polymers of some symmetricaliy substituted norbornenes, some unsymmetricaliy substituted norbornenes, some symmetrically substituted norbornadienes and a symmetricaliy substituted 7-oxanorbomene. In

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Degradation of Polymers by Metathesis Catalystscopolymers) and technical products containing polymers. In most cases, the polymers are degraded to low-molecular-weight substances which are separated and quantitatively determined by gas chromatography (GC) and identified by mass spectrometry (MS). But there are also applications where a crosslink

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Metathesis Polymerization by Homogeneous Catalysts: Simulationsogeneous catalysts. Concentration changes or the products and those of the starting olefins were monitored by withdrawing samples from the reaction mixtures and analyzing by GC-MS. A chemical mechanism was constructed from carbene reactions such as polymerization, termination, initiation, chain-tran

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General Properties of Supported Metathesis Catalystson metal compound deposited on a high-surf ace-area support. The most successful catalysts are those based on rhenium, molybdenum or tungsten. Important examples are Re.O./Al.O., MoO./Al.O. and WO./Al.O.. In particular Re.O./Al.O. should be mentioned because it is already highly active and selective

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Novel Supported Catalysts for Terminal Alkene Metathesis.) into catalysts for terminal alkene metathesis, which accompany no hydrogen shift and isomerization of the produced alkenes. Making use of the advantage some applications are reviewed and the relative activities of metallacyclobutane (MCB) intermediates are elucidated on MoO./TiO.-SnMe. with an eq

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Stoichiometric Reactions with Reduced Phillips CatalystReduced Phillips catalysts contain — together with some inactive Cr(III)oxide — Cr(II) surface species in different coordination states. The reaction with ligands will therefore usually yield a mixture of different surface compounds, i.e. complexes of different stoichiometry, besides unreacted Cr(II

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