Abstract:
The invention relates to a solvent-stable metal catalyst having slightly co-ordinating counter anions of formula I [M(L) a (Z) b ] m+ m(A - ) (I), wherein M represents a transition metal of groups 3 - 12 of the periodic system, a lanthanide or a metal of groups 2 or 13 of the periodic system; L represents a solvent molecule; Z represents a mono or polycharged ligand; A - represents a slightly or non co-ordinated anion; a represents a whole number which is greater than or equal to 1; b represents a whole number which is greater than or equal to 1, whereby the total from a and b is between 4 and 8, and m represents a whole number from 1 6. The invention also relates to a method for polymerising olefinically unsaturated compounds in the presence of said catalyst and copolymers which are made of monomers comprising isobutene and at least one vinylaromatic compound which is obtained according to said inventive method.
Abstract translation:本发明涉及一种溶剂稳定化的金属催化剂与式I [M(L)一 SUB>(Z) B'/ SUB> M + SUP>米的弱配位抗衡阴离子(A - SUP>)(I)其中M是第3族的过渡金属周期表,镧系元素或第2族或周期表的第13族的金属的12; L是溶剂分子; Z是单独使用,或多个电荷的配体; A - SUP>是一种弱或非配位阴离子; 一个大于或等于1的整数; b为整数大于或等于1; 其中的a和b的总和为4至8; 且m为1至6,从单体包含异丁烯和至少一种乙烯基芳族化合物,其是通过本发明方法获得的形成的一个整数,并且还用于烯属不饱和Verbindüngen的在该催化剂的存在下聚合的方法,以及共聚物。
Abstract:
The invention relates to a method for producing homopolymers and copolymers of vinylphosphonic acid having a content of vinylphosphonic acid polymerized into it of at least 30% by weight, based on the overall weight of the homopolymer or copolymer, said method comprising the radical polymerization of a monomer composition that contains, based on the overall amount of the monomers in the monomer composition, a) > 30% by weight of vinylphosphonic acid in the form of its anhydride or an anhydride derivative or in the form of a mixture of vinylphosphonic acid and its anhydride or anhydride derivative (monomer a), and b)
Abstract:
Preparation of highly reactive isobutene homo- or copolymers having M n =from 500 to 45 000 by polymerizing isobutene in the liquid phase in the presence of a dissolved, dispersed or supported boron-containing catalyst complex, by using, as the catalyst complex, a protic acid compound I [H + ] m+1 [R 1 R 2 R 3 B-(-A m+ -BR 5 R 6 -) n -R 4 ] (m+1)- .L x (I) R 1 to R 6 each independently aliphatic, heterocyclic or aromatic, fluorinated hydrocarbon radicals having in each case from 1 to 18 carbon atoms, or silyl groups comprising C 1 to C 18 hydrocarbon radicals, A nitrogen-containing bridging member which forms covalent bonds to the boron atoms via its nitrogen atoms, L neutral solvent molecules, n=0 or 1, m=0 or 1 and x is >=0.
Abstract:
In polymerization of monomers with ethylenically unsaturated groups in open chain structures in the molecule, the polymerization catalyst is a heterogenized metal complex (I) obtained by contacting a homogeneous metal complex (II) with a suitable support material, where (II) has a mono- to hexa-valent solvated metal cation containing a group 3-12 transition metal, lanthanide or group 2 or 13 metal, 1 or more molecules of solvent and optionally charged ligand, and weakly or non-coordinating anion. In polymerization of monomers with ethylenically unsaturated groups in open chain structures in the molecule, the polymerization catalyst is a heterogenized metal complex (I) obtained by contacting a homogeneous metal complex of formula (II) with a suitable support material: [M(L)a(Z)b]m+> m(A->) (II); M : a group 3-12 transition metal, a lanthanide or a group 2 or 13 metal; L : a solvent molecule; Z : a ligand with 1 or more charges; A->a weakly or non-coordinating anion; a : 1 or more; b : 0, 1 or more; a+b : 4-8; m : 1-6. Independent claims are included for the following: (1) heterogenized metal complexes (IA), suitable as polymerization catalysts, obtained by contacting specified homogeneous metal complexes (IIA) with a suitable support material; (2) use of (I) as catalyst in the polymerization of ethylenically unsaturated monomers; (3) highly reactive copolymers of isobutene and vinylaromatic monomer(s) produced by this process.
Abstract:
The invention relates to a solvent-stable metal catalyst having slightly coordinating counter anions of formula I [M(L) a (Z) b ] m+ m(A - )(I), wherein M represents a transition metal of groups 3-12 of the periodic system, a lanthanide or a metal of groups 2 or 13 of the periodic system; L represents a solvent molecule; Z represents a mono or polycharged ligand; A - represents a slightly or non coordinated anion; a represents a whole number which is greater than or equal to 1; b represents a whole number which is greater than or equal to 1, whereby the total from a and b is between 4 and 8, and m represents a whole number from 1 6. The invention also relates to a method for polymerising olefinically unsaturated compounds in the presence of said catalyst and copolymers which are made of monomers comprising isobutene and at least one vinylaromatic compound which is obtained according to said inventive method.