Zhixing Zhuo, Chen Zhang, Yunjie Luo, Yaorong Wang, Yingming Yao, Dan Yuan and Dongmei Cui
Chem. Commun., 2018,54, 11998-12001
DOI:
10.1039/C8CC05469J,
Communication
A series of novel salan-ligated rare-earth metal amide complexes were prepared and employed as initiators for the ROP of rac-β-butyrolactone (rac-BBL). Tuning the substituents on the N atoms of the ligand frameworks from aromatic groups to aliphatic groups results in switching tacticity from iso-tactic to syndio-tactic in rac-BBL polymerization.