Abstract
AbstractTwo aluminium and magnesium heterobimetallic complexes of [(LAl)MgOBn]2 (2) and [(LAl)Mg(OC2H4OCH3)]2 (3), in which L = N1,N1,N2,N2‐tetrakis(2‐hydroxy‐3,5‐dimethylbenzyl)‐1,2‐ethanediamine, have been synthesized and characterized by NMR spectroscopy, X‐ray crystallography, and elemental analysis. The magnesium alkoxide of complex 2 supported by the bulky aluminium tetraphenolates, as a rare helical heterobimetallic initiator, can effectively initiate the ring‐opening polymerization (ROP) of L‐lactide (L‐LA) leading to polymers with good molecular weight control and narrow molecular weight distributions. Kinetic studies have shown the overall rate expression is –d[lactide]/dt = k[lactide][complex] for the ROP of L‐LA. Furthermore, complex 2 shows modest isotactic selectivity in the ROP of rac‐lactide.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
