R.M. Macfarlane, R.L. Cone
Physical Review B - CMMP
(-)-Sparteine is a proven organocatalyst for the ringopening polymerization (ROP) of L-lactide, which affords polymers of controlled molecular weight and narrow polydispersity. The recent worldwide shortage of (-)-sparteine has necessitated the identification of simple and cost-effective replacement ROP catalysts. A series of commercially available molecules was first identified through molecular modeling and then subsequently investigated for polymerizing L-lactide. The modeling proved very useful at predicting spatial relationships and nitrogen geometries that greatly aided in the rapid identification of various alkyl amines as alternative organocatalysts. © 2011 American Chemical Society.
R.M. Macfarlane, R.L. Cone
Physical Review B - CMMP
Ranulfo Allen, John Baglin, et al.
J. Photopolym. Sci. Tech.
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
Julian J. Hsieh
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films