@Article{JRM.2014.634133,
AUTHOR = {Zhiqiang Sun, Ranlong Duan, Han Zhang, Xuan Pang, Xianhong Wang, Xuesi Chen},
TITLE = {Highly Stereoselective Polymerization of Racemic Lactide by  Bimetallic Schiff Base Complexes},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {3},
YEAR = {2015},
NUMBER = {2},
PAGES = {82--90},
URL = {http://www.techscience.com/jrm/v3n2/49604},
ISSN = {2164-6341},
ABSTRACT = {A series of bimetallic Salen aluminum (III) complexes with different steric substituents were synthesized. 
These complexes were used as catalysts to produce polylactide in the ring-opening polymerization of racemic 
lactide. A kinetic research of polymerization demonstrated that the steric substituents on the phenolate ring of 
the complexes had remarkable infl uence on the stereoselectivity and the polymerization activity. The highest 
stereoselectivity was obtained with bulky substituent on the ortho position of the salicylidene moieties. Kinetic 
studies using all these complexes indicated that the polymerizations were fi rst-ordered with respect to lactide 
monomers. All these complexes gave highly isotactic polylactides with controlled molecular weight and 
narrow molecular weight distributions.},
DOI = {10.7569/JRM.2014.634133}
}