A direct route to cyclic organic nanostructures via ring-expansion metathesis polymerization of a dendronized macromonomer

Andrew J Boydston; Thomas W Holcombe; David A Unruh; Jean M J Fréchet; Robert H Grubbs

doi:10.1021/ja901658c

A direct route to cyclic organic nanostructures via ring-expansion metathesis polymerization of a dendronized macromonomer

J Am Chem Soc. 2009 Apr 22;131(15):5388-9. doi: 10.1021/ja901658c.

Authors

Andrew J Boydston¹, Thomas W Holcombe, David A Unruh, Jean M J Fréchet, Robert H Grubbs

Affiliation

¹ Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.

Abstract

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.

Publication types

Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Dendrimers / chemistry*
Microscopy, Atomic Force
Molecular Conformation
Nanostructures / chemistry*
Norbornanes / chemistry*
Polycyclic Compounds / chemistry
Polymers / chemical synthesis*

Substances

Dendrimers
Norbornanes
Polycyclic Compounds
Polymers

Abstract

Publication types

MeSH terms

Substances

Grants and funding