A direct route to cyclic organic nanostructures via ring-expansion metathesis polymerization of a dendronized macromonomer.
Cyclic organic nanostructures were prepared via ring-expansion metathesis polymerization of a dendronized norbornene macromonomer. The strategy provides a direct, efficient route to nanoscale rings in a single operation. AFM imaging confirmed toroidal features having diameters of ca. 35-40 nm.
Boydston
Andrew J
AJ
Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
Holcombe
Thomas W
TW
Unruh
David A
DA
Fréchet
Jean M J
JM
Grubbs
Robert H
RH