J.V. Harzer, B. Hillebrands, et al.
Journal of Magnetism and Magnetic Materials
(-)-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.
J.V. Harzer, B. Hillebrands, et al.
Journal of Magnetism and Magnetic Materials
C.M. Brown, L. Cristofolini, et al.
Chemistry of Materials
Heinz Schmid, Hans Biebuyck, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
A. Gupta, R. Gross, et al.
SPIE Advances in Semiconductors and Superconductors 1990