Abstract Imidodiphosphorimidate (IDPi) is demonsatreted as a novel and efficient acid/base bifunctional organocatalyst for controlled/living ring-opening polymerization of lactones, which delivered the metal-free poly(δ-valerolactone) and poly(e-caprolactone) with excellent control over the molecular weight and narrow dispersity at a low catalyst loading under mild conditions. NMR and MALDI-TOF characterizations, kinetic study, and chain extension experiment suggest a well-controlled/living nature of the current ROP of lactones catalyzed by the IDPi catalyst.

中文翻译：

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亚胺二磷酰亚胺 (IDPi) 作为一种有效的有机催化剂，用于内酯的可控/活性开环聚合

摘要 亚氨基二磷酰亚胺 (IDPi) 被证明是一种新型高效的酸/碱双功能有机催化剂，用于内酯的可控/活性开环聚合，可提供无金属的聚（δ-戊内酯）和聚（ε-己内酯）在温和条件下，在低催化剂负载下，分子量超过分子量和窄分散性。NMR 和 MALDI-TOF 表征、动力学研究和扩链实验表明，IDPi 催化剂催化的内酯当前 ROP 具有良好控制/活性的性质。