申请人:——
公开号:US20020156196A1
公开(公告)日:2002-10-24
In accordance with the present invention, there is provided a process for producing a polymer by a living radical polymerization method which is also applicable to the polymerization of a methacrylate monomer, and a methacrylate-based polymer having a narrow molecular weight distribution which is produced by the above process. Specifically, the present invention relates to a process for producing a methacrylate-based polymer by a atom transfer radical polymerization method in which a polymerizable monomer containing at least one methacrylate monomer is polymerized in the presence of a redox catalyst comprising a metal complex containing at least one transition metal as a central metal selected from the group consisting of elements of Groups 7 to 11 of the Periodic Table, using an organohalogen compound or a halogenated sulfonyl compound as a polymerization initiator.
根据本发明,提供了一种通过活自由基聚合法生产聚合物的工艺,该工艺也适用于甲基丙烯酸酯单体的聚合,以及通过上述工艺生产的具有窄分子量分布的甲基丙烯酸酯基聚合物。具体地说,本发明涉及一种通过原子转移自由基聚合法生产甲基丙烯酸酯基聚合物的工艺,在该工艺中,含有至少一种甲基丙烯酸酯单体的可聚合单体在氧化还原催化剂存在下进行聚合,氧化还原催化剂包括一种金属络合物,该金属络合物含有至少一种过渡金属作为中心金属,该过渡金属选自元素周期表第7至11族元素组成的组,使用有机卤化合物或卤代磺酰化合物作为聚合引发剂。