发明授权
US06031057A Polymers of olefinically unsaturated monomers 失效
烯属不饱和单体的聚合物

Polymers of olefinically unsaturated monomers
摘要:
Polymers are obtained by polymerising olefinically unsaturated monomers in the presence of a metal complex having the general formula (I), in which the substituents and indexes have the following meanings: M is a metal of group VIIIB of the periodic table of elements; E.sup.1, E.sup.2 stand for an element of group VA of the periodic table of elements; Z is a bridging structural unit made of one, two or three substructural units of elements of groups IVA, VA, VIA of the periodic table of elements; R.sup.1 to R.sup.4 stand for substituents selected in the group that consists of C.sub.1 -C.sub.20 organic carbon residues and C.sub.3 -C.sub.30 organic silicium residues which may contain one or several elements of groups IVA, VA, VIA and VIIA of the periodic table of elements; L.sup.1, L.sup.2 stand for formally charged or neutral ligands; X stands for monovalent or polyvalent anions; p equals 0, 1 or 2; m, n equal 0, 1 or 2, whereas p=m.times.n. ##STR1##
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