SYNTHESIS OF aPs-b-P(S-co-E)-b-PE BLOCK COPOLYMERS CATALYZED WITH HALF-TITANOCENE/Zn/BDGE/MAO CATALYST SYSTEM
茂金属化合物/Zn/BDGE/MAO催化体系合成aPS-b-P(S-co-E)-b-PE嵌段共聚物的研究

By one-pot technique the copolymerization of styrene with ethylene promoted by a cyclopentadienyl titanium trichloride(CpTiCl_3)/1,4-butanediol diglycidyl ether(BDGE)/Zn catalytic system to yield aPs-b-P(S-co-E)b-PE block copolymers was investigated via sequential monomer addition strategy in the presence of methylaluminoxane(MAO) as cocatalyst for the coordination polymerization stage. The effect of temperature,time,ethylene pressure and the ratio of Al/Ti in mol on the polymerization performance was discu...