摘要:
Polymerization initiator comprising an alkaline earth metal compound chosen from the group a) of heteroleptic alkaline earth metal compounds of the formula I L—M—R (I) or b) of cationic alkaline earth metal complexes of the formula II [D→M—R]+X− (II), where M: is Ca, Sr or Ba, L: is a polymerization-inactive ligand, R: is a polymerization-active ligand, D: is a donor ligand, and X: is a non-coordinating anion, and processes for the preparation of the polymerization initiators and processes for anionic polymerization in the presence of the polymerization initiators.
摘要:
A process for the preparation of bisorganoalkaline earth metal compounds comprises reacting an organometallic compound RnM2 with an alkaline earth metal salt M1Xm.