申请人:Technische Universität München
公开号:US10894845B2
公开(公告)日:2021-01-19
A system for precision polymerization is disclosed comprising at least one Michael-type monomer and a metal compound MR1R2R3 as sole catalyst and initiator, wherein M is aluminum, gallium or indium, each of R1, R2, and R3 independently is CI, F, I, Br, linear, branched or cyclic alkyl, heterocycloalkyl, linear, branched or cyclic alkenyl, heterocycloalkenyl, linear, branched, or cyclic alkenyl, linear, branched, or cyclic alkinyl, heterocycloalkinyl, linear, branched, or cyclic alkoxy, aryl, heteroaryl, aryloxy, silyl, metallocenyl, nitro, nitroso, hydroxy, or carboxyl, wherein each alkyl, alkenyl, alkinyl or alkoxy group independently has up to 12 carbon atoms, wherein each aryl or heteroaryl independently has 5 to 14 ring atoms, wherein any hetero group has at least one hetero atom selected from the group consisting of O, S, and N, wherein each alkyl, alkenyl, alkinyl or alkoxy, heterocycloalkyl, heterocycloalkenyl, heterocycloalkinyl, aryl, heteroaryl, aryloxy group can be substituted by 1 up to the highest possible number of halogen atoms, or at least one electron-donating or electron-withdrawing group; with the proviso that not all three groups R1, R2, and R3 are halogen, hydroxy, or alkoxy or wherein two of R1, R2, and R3 together with M form a substituted or unsubstituted cyclic or heterocyclic group having 3 to 6 atoms, wherein a heterocyclic group has at least one hetero atom selected from the group consisting of O, S, and N; as well as processes for preparing polymers and the polymers obtained therewith.
杂环烷基,直链、支链或环烯基,杂环烯基,直链、支链或环烯基,直链、支链或环炔基,杂环炔基,直链、支链或环烷氧基,芳基,杂芳基,芳氧基,硅烷基,金属烯基,硝基,亚硝基,羟基、或羧基,其中每个烷基、烯基、炔基或烷氧基独立地具有多达 12 个碳原子,其中每个芳基或杂芳基独立地具有 5 至 14 个环原子,其中任何杂基具有至少一个选自 O、S 和 N 组成的组的杂原子、其中每个烷基、烯基、烷基或烷氧基、杂环烷基、杂环烯基、杂环炔基、芳基、杂芳基、芳氧基可被 1 个至最高可能数目的卤原子或至少一个电子奉献基团或电子吸取基团取代;但 R1、R2 和 R3 这三个基团并非都是卤素、羟基或烷氧基,或者 R1、R2 和 R3 中的两个基团与 M 一起形成具有 3 至 6 个原子的取代或未取代的环状或杂环基团,其中杂环基团具有至少一个选自 O、S 和 N 所组成的组的杂原子;以及制备聚合物及其聚合物的工艺。