The cuboctameric silsesquioxane silanol (c-C5H9)7Si8O12(OH) has been applied as a model support for silica-grafted olefin polymerization catalysts. Complexes of the type Cp‘‘[(c-C5H9)7Si8O13]TiX2 (Cp‘‘ = 1,3-C5H3(SiMe3)2; X = Cl, CH2Ph) form active α-olefin polymerization catalysts.
                                    立方八聚倍半
硅氧烷硅烷醇(c -C 5 H 9)7 Si 8 O 12(OH)已用作
二氧化硅接枝的烯烃聚合催化剂的模型载体。Cp''[(c -C 5 H 9)7 Si 8 O 13 ] TiX 2(Cp''= 1,3-C 5 H 3(SiMe 3)2 ; X = Cl,CH 2 Ph )形成活性α-烯烃聚合催化剂。