本文报道了一种催化环氧化合物与酸酐共聚合的含软碱配位原子硫的铬配合物新型催化剂，此类配合物还可以用来催化环氧化合物与二氧化碳或者二硫化碳反应，相应工作正在整理中。
目前的有关催化剂的设计主要是基于含O，N的硬碱原子作为配位原子，本工作拓展了有关催化剂的设计合成思路。
Four new homogeneous chromium complexes with [OSSO]-type bis(phenolato) dianionic ligand catalysts for the ring-opening copolymerization of phthalic anhydride (PA) and epoxides are reported. Through the structure design, the ligand with a cyclohexylene ring backbone of the chromium complexes is quite beneficial to improving the activity. Of all the cocatalysts employed, DMAP is found to be the most efficient.1H NMR spectra of the copolymers confirmed the alternating microstructures. This is the first example of a well-defined metal complex with a soft Lewis base as donor for the efficient copolymerization of anhydride and epoxides. Additionally, we demonstrate that poly(4-VCHO-alt-PA) can be conveniently functionalized using a robust free-radical mediated thiol–ene reaction of the pendant vinyl groups