THE POLYMERIZATION OF OLEFINS IN THE PRES ENCE OF HOMOGENEOUS MONOCOMPONENT ORGANOTITANIUM CATALYSTS

Ethylene polymerization kinetics was studied in a medium of n-heptane, toluene and ethyl chloride in the presence of benzyl derivatives of t itanium (C6H5CH2)nTiXm, where X groups OC5H5, Cl, and OC2H15; n = 2 - 4, m = 1 - 2. The polymerization of ethylene and propylene took place using organosilicon catalysts: 2,2,4,4-tetramethyl-4-chloro-2,4 disily lbutyl titaniumtrichloride and thyl-2,4-diethyl-4-chloro-2,4-disilylbu tyltitanium trichloride. The organosilicontitanium catalysts displayed a high stability and did not lose their activity for a period of seve ral months, when stored in an inert atmosphere at room temperature. Th e activity of these catalysts considerably increases when they are tre ated with diethylaluminium chloride.