| 摘要 |
<p>Preparation of homo- or copolymers, especially of high-reactivity isobutene homo- or copolymers with a number-average molecular weight Mn of 400 to 1 000 000, by polymerizing one or more ethylenically unsaturated monomers in the liquid phase in the presence of a dissolved, dispersed or supported catalyst complex based on a protic acid compound obtainable by reacting a reactive inorganic or organic pentavalent phosphorus compound with three equivalents of an organic alpha,beta-dihydroxy compound, for example a tris(oxalato)- or tris(ortho-phenylenedioxy)phosphoric acid stabilized by a dialkyl ether.</p> |
