申请人:——
公开号:US20040142814A1
公开(公告)日:2004-07-22
An organoaluminum reaction product of A.) a ligand of the formula I, wherein R
1
represents an alkyl, aryl, arylalkyl, or alkylaryl group, a C
3-24
silyl group, or hydrogen, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
12
, and R
13
are the same or different and represent an alkyl, aryl, arylalkyl, or alkylaryl group, a C
3-24
silyl group, halide, or hydrogen, with the proviso that at least one of the groups R
4
and R
13
represents hydrogen, R
8
represents an alkoxy, alkyl, aryl, arylalkyl, or alkylaryl group, a C
3-24
silyl group, halide, hydroxyl radical, or hydrogen, E represents O, S, Se, or Te, and n is an integer from
1
to
4,
and B.) an aluminum compound of formula AlR
9
R
10
R
11
, wherein R
9
and R
10
are the same or different and represent C
1-20
alkyl, aryl, arylalkyl, or alkylaryl group, or hydrogen, and R
11
is a C
1-20
alkyl, aryl, arylalkyl, alkylaryl or alkoxy group, hydrogen, or halogen is useful as a polymerization catalyst, particularly for the homopolymerization or copolymerization of an alkylene oxide.
一种有机铝反应产物,其包括A.) 公式I的配体,其中R1代表烷基、芳基、芳基烷基或烷基芳基、C3-24硅基或氢原子,R2、R3、R4、R5、R6、R7、R12和R13相同或不同,代表烷基、芳基、芳基烷基或烷基芳基、C3-24硅基、卤素或氢原子,但至少其中的一个R4和R13代表氢原子,R8代表烷氧基、烷基、芳基、芳基烷基或烷基芳基、C3-24硅基、卤素、氢氧自由基或氢原子,E代表O、S、Se或Te,n为1至4的整数,以及B.) 公式AlR9R10R11的铝化合物,其中R9和R10相同或不同,代表C1-20烷基、芳基、芳基烷基或烷基芳基或氢原子,而R11为C1-20烷基、芳基、芳基烷基、烷基芳基或烷氧基、氢原子或卤素,可用作聚合催化剂,特别适用于烷基氧化物的均聚或共聚。