The invention relates to a method for preparing linear polymers having an amide end or having a star architecture comprising an amide core, by means of a ring opening using lactide and glycolide monomers or a lactide monomer ring in the presence of a catalyst, wherein the method includes the steps of: (i) reacting the excess monomer(s) with an initiator in a solvent, said initiator being selected from among an amine and an amino alcohol, given that the initiator has at least one primary or secondary amine function; (ii) adding a catalyst, said catalyst being a non-nucleophilic base and including at least one neutral sp2 nitrogen atom; and (iii) neutralizing the reaction mixture. Said novel method is particularly advantageous in that it can be easily monitored and enables better modulation of the polymers, and thus of the properties thereof, than the methods of the prior art. The invention also relates to novel polymers that are obtainable by means of said method.
本发明涉及一种通过使用
乳酸内酯和
乙二醇内酯单体或
乳酸内酯单体在催化剂存在下进行开环反应的方法,以制备具有酰胺末端或具有酰胺核心的星形结构线性聚合物,其中该方法包括以下步骤:(i)在溶剂中将过量单体与
引发剂反应,所述
引发剂从胺和
氨基醇中选择,给定该
引发剂具有至少一个初级或次级胺功能;(ii)添加催化剂,所述催化剂是一种非亲核碱,包括至少一个中性sp2氮原子;以及(iii)中和反应混合物。该新型方法特别优越的是可以很容易地监测,并且能够比现有技术的方法更好地调节聚合物及其性质。本发明还涉及通过该方法可获得的新型聚合物。