Ming L. Yu
Physical Review B
Living ring opening polymerization of ε-caprolactone initiated from the numerous chain-end hydroxymethyl groups of the analogous dendrimeric and hyperbranched polyesters derived from 2,2-bis(hydroxymethyl) propionic acid is described. By controlling the size of the dendritic macromolecule and the molar ratio of ε-caprolactone a variety of highly branched radial block copolymers are obtained. Comparison of the results obtained for the dendrimeric and hyperbranched initiators demonstrates that the reactivity of the chain-end hydroxymethyl groups in the dendrimer are significantly greater than in the isomeric hyperbranched case. © 1998 John Wiley & Sons, Inc.
Ming L. Yu
Physical Review B
A. Ney, R. Rajaram, et al.
Journal of Magnetism and Magnetic Materials
K.N. Tu
Materials Science and Engineering: A
Xikun Hu, Wenlin Liu, et al.
IEEE J-STARS