A series of initiators based on transition metal complexes for the polymerization of optically active beta-lactams into poly-beta-peptides and block copolymers have been developed. These initiators are unique in being able to eliminate chain transfer and chain termination side reactions from these polymerizations resulting in narrow molecular weight distributions, molecular weight control, and the ability to prepare copolymers of defined block sequence and composition.
一系列基于过渡
金属配合物的
引发剂已经被开发用于将光学活性β-内酰胺聚合成聚β-肽和嵌段共聚物。这些
引发剂独特之处在于能够消除这些聚合反应中的链转移和链终止副反应,从而导致分子量分布狭窄、分子量控制以及制备定义的嵌段序列和组成的共聚物的能力。