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Proceso de polimerizacion de monomeros polares empleando catalizadores de titanio.

La presente invención se refiere a un método nuevo para la síntesis de polímeros de polialquil vinil éteres (pve), polisilil vinil éteres (psive) y poli vinilcarbazol (pvk), a través de la (ver mas)
La presente invención se refiere a un método nuevo para la síntesis de polímeros de polialquil vinil éteres (pve), polisilil vinil éteres (psive) y poli vinilcarbazol (pvk), a través de la polimerización de monómeros polares empleando el sistema catalítico formado por un catalizador homogéneo medio de sándwich de titanio con fórmula general ltix3 , [ l= c5h5, c5me5, c9h7; x= halógeno, alquilo, alcoxi] y un cocatalizador alquilaluminoxano.Las características estructurales de los polímeros que se obtienen por el método de la presente invención son diferentes a las obtenidas por otros métodos de polimerización convencionales. El método conduce a polímeros estereoregulares enriquecidos de arreglos sindiotácticos isotácticos y heteroatácticos. En particular se destaca la obtención de poli (terbutil vinil éter) heteroatáctico, cuya hidrólisis total o parcial conduce a pva con estructura diferentes al pva comercial. Los pesos moleculares de los polímeros pve, psive y pvk son comparables a los más altos que se han reportado en la literatura.

Palabras clave: psive y pvk; polisilil vinil; presente invenci; meros; vinil;

Nombre del Agente: JOSÉ ANTONIO ROMERO MIRANDA; Thiers 251, Piso 14, Anzures, 11590, , Distrito Federal


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