Nitrogen-containing group-13 anionic compounds for olefin polymerization

   
   

The invention addresses an composition of matter comprising a cation [Ct].sup.+ and an anion [A].sup.-, the anion comprises a core Group-13 element bound to partially or completely fluorinated fluoroaryl ligands, at least one of the fluoroaryl ligands is substituted with a Group-15 element that has been rendered essentially inert for subsequent chemical reaction through its unbonded electron pair by substituting an electron-withdrawing group on it. [Ct].sup.+ may be selected from anilinium and ammonium cations, trityl carbenium cations, Group-11 metal cations, silylium cations, the cations of the hydrated salts of Group-1 or -2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C.sub.1 -C.sub.20 hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of said cations. The compositions can be used to activate olefin polymerization catalysts, and can be prepared to dissolve in aliphatic solvents. Syntheses and polymerization are illustrated.

A invenção dirige-se a uma composição da matéria que compreende um cation [ Ct].sup.+ e um anion [ A].sup. -, o anion compreende um elemento do núcleo Group-13 limitado a parcialmente ou os ligands completamente fluorinated do fluoroaryl, ao menos um dos ligands do fluoroaryl são substituídos com um elemento Group-15 que seja rendido essencialmente inerte para a reação química subseqüente com o seu unbonded o par do elétron substituindo um grupo elétron-se retirando nele. [ Ct].sup.+ pode ser selecionado dos cations do anilinium e do ammonium, cations do carbenium do trityl, cations do metal Group-11, cations do silylium, os cations dos sais hydrated de Group-1 ou -2 metais, e derivatives do anilinium, do ammonium, do carbenium do trityl, e dos cations antecedentes do silylium que contêm C.sub.1 - hydrocarbyl C.sub.20, hydrocarbylsilyl, ou substituents do hydrocarbylamine para um ou mais átomo do hidrogênio de cations ditos. As composições podem ser usadas ativar catalizadores da polimerização do olefin, e podem ser preparadas para dissolver-se em solventes aliphatic. As sínteses e a polimerização são ilustradas.

 
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