Single component cationic palladium proinitiators for the latent polymerization of cycloolefins
申请人:Bell Andrew
公开号:US20050187398A1
公开(公告)日:2005-08-25
Palladium compound compositions are provided in accordance with Formulae [((R)
3
E)
a
Pd(Q)(LB)
b
]
p
[WCA]
r
, where ((R)
3
E) is a Group 15 electron donor ligand, Q is an anionic ligand, LB is a Lewis base, WCA is a weakly coordinating anion, a is 1, 2 or 3, b is 0, 1 or 2, the sum of a and b is 1, 2 or 3 and each of p and r is an integer such that the molecular charge is zero, or [(E(R)
3
)(E(R)
2
R*)Pd(LB)]
p
[WCA]
r
where E(R)
2
R* represents a Group 15 neutral electron donor ligand and where R* is an anionic hydrocarbyl containing moiety, bonded to the Pd and having a β hydrogen with respect to the Pd center. Such compound composition exhibits latent polymerization activity in the presence of polycyclic olefins.
钯化合物组成按照以下公式提供:[((R)3E)aPd(Q)(LB)b]p[WCA]r,其中((R)3E)是第15族电子供体配体,Q是阴离子配体,LB是路易斯碱,WCA是弱配位阴离子,a为1、2或3,b为0、1或2,a和b的总和为1、2或3,p和r各自为整数,使得分子电荷为零,或[(E(R)3)(E(R)2R*)Pd(LB)]p[WCA]r,其中E(R)2R*代表第15族中性电子供体配体,R*是与Pd键合的含有阴离子烃基的部分,并且相对于Pd中心具有β氢。这种化合物组成在多环烯烃存在时表现出潜在的聚合活性。