COPOLYMERIZATION OF STYRENE AND SUBSTITUTED STYRENES WITH TI(OMEN)4-METHYLALUMINOXANE CATALYST

被引：61

作者：

SOGA, K ^{[1
]}

NAKATANI, H ^{[1
]}

MONOI, T ^{[1
]}

机构：

[1] SHOWA DENKO CO LTD,OITA RES LAB,OITA 87001,JAPAN

来源：

MACROMOLECULES | 1990年 / 23卷 / 04期

关键词：

D O I：

10.1021/ma00206a009

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Copolymerizations of styrene and substituted styrenes were carried out at room temperature with a Ti(OMen)4-methylaluminoxane catalyst and the monomer reactivity ratios (r) were estimated by using the Fineman-Ross method. From the plot of log r versus σ in the Hammett equation, log r = ρ σ, ρ was approximately -1.2. The negative value of ρ suggested that polymerization of these styrene monomers proceeds not via a coordinated anionic but via a coordinated cationic mechanism. The results of copolymerization between styrene and α-olefins supported the mechanism. © 1990, American Chemical Society. All rights reserved.

引用

页码：953 / 957

页数：5

共 10 条

[1] ORGANOMETALLIC COMPOUNDS OF GROUP-III .41. DIRECT OBSERVATION OF THE INITIAL INSERTION OF AN UNSATURATED HYDROCARBON INTO THE TITANIUM CARBON BOND OF THE SOLUBLE ZIEGLER POLYMERIZATION CATALYST, CP2TICL2-MEALCL2 [J].