ACTIVADORES DE LA POLIMERIZACION CATIONICOS DE SILILIO PARA COMPLEJOS METALOCENOS

• Main Authors: MUSSELL, ROBERT, D, DEVORE, DAVID, D, NEITHAMER, DAVID, R, LAPOINTE, ROBERT, E
• Format: Patent
• Language: Spanish
• Published: 01.11.1998
• Edition: 6
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; APPARATUS THEREFOR; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

SE PREPARAN SISTEMAS CATALIZADORES UTILES EN REACCIONES DE POLIMERIZACION DE ADICION QUE COMPRENDEN UN COMPLEJO DE METAL DEL GRUPO 4 Y UN COCATALIZADOR DE ACTIVACION DE SAL DE SILILIO MEDIANTE LA PUESTA EN CONTACTO DEL COMPLEJO DE METAL CON UNA SAL DE SILILIO DE UN ANION COMPATIBLE, DE NO COORDINACION, OPCIONALMENTE LA SAL DE SILILIO SE PREPARA MEDIANTE OXIDACION ELECTROQUIMICA Y SEPARACION DEL COMPUESTO DE DISILANO CORRESPONDIENTE. Silylium salts corresponding to the formula: R3Si(X')q<+>A<-> wherein R independently each occurrence is selected from hydrocarbyl, silyl, hydrocarbyloxy, dihydrocarbylamino, and combinations thereof having up to 30 nonhydrogen atoms, X' is an optional Lewis base having up to 20 nonhydrogen atoms, q is 0 or 1, and A<-> is a noncoordinating, compatible anion, are prepared by oxidizing, preferably electrolytically, a solution comprising a disilane compound corresponding to the formula: R3SiSiR3 wherein R is as previously defined, in the presence of a source of the noncoordinating counter ion, A<->.