A compound useful as a cocatalyst or cocatalyst component, especially for use as an addition polymerization catalyst compound, corresponding to the formula: (A*
+a
)
b
(Z*J*
j
)
−c
d
, wherein:
A* is a proton or a cation of from 1 to 80 atoms, preferably 1 to 60 atoms, not counting hydrogen atoms, said A* having a charge +a;
Z* is an anion group of from 1 to 50 atoms, preferably 1 to 30 atoms, not counting hydrogen atoms, further containing two or more Lewis base sites, said Z* being the conjugate base of an inorganic Bronsted acid or a carbonyl- or non-cyclic, imino-group containing organic Bronsted acid;
J* independently each occurrence is a Lewis acid of from 1 to 80 atoms, preferably 1 to 60 atoms, not counting hydrogen atoms, coordinated to at least one Lewis base site of Z*, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality;
j is a number from 1 to 12; and
a, b, c, and d are integers from 1 to 3, with the proviso that a×b is equal to c×d.
一种可用作助催化剂或助催化剂组分的化合物,特别是可用作加成聚合催化剂的化合物,其结构式为(A*
+a
)
b
(Z*J*
j
)
-c
d
其中
A* 是质子或阳离子,含有 1 至 80 个原子,最好是 1 至 60 个原子,不包括氢原子,所述 A* 带有电荷+a;
Z* 是 1 至 50 个原子,优选 1 至 30 个原子(不包括氢原子)的阴离子基团,进一步包含两个或多个路易斯碱位点,所述 Z* 是无机勃朗司特酸或含羰基或非环、
亚胺基团的有机勃朗司特酸的共轭碱;
每个独立出现的 J* 是 1 至 80 个原子,优选 1 至 60 个原子(不包括氢原子)的
路易斯酸,与 Z* 的至少一个路易斯碱基位点配位,可选择将两个或多个这样的 J* 基团连接在一起,形成具有多个
路易斯酸官能团的分子;
j 是 1 到 12 之间的数字;以及
a、b、c 和 d 是 1 到 3 的整数,但 a×b 等于 c×d。