Temperature-responsive supramolecular assembly and morphology of arborescent copolymer micelles with a solvophilic core-solvophobic shell structure

Seok Il Yun, Gerry E. Gadd, Victor Lo, Mario Gauthier, Abdul Munam

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7 Citations (Scopus)


This paper describes the supramolecular assembly of arborescent (dendrigraft) copolymers in solution. The dendritic copolymers remained as unimolecular (nonassociated) micelles in toluene at temperatures above the critical self-assembly temperature (est) but aggregated into supramolecular structures with a diameter of a few micrometers below the est. Small-angle neutron scattering (SANS) measurements in toluene revealed that the P2VP shell of the unimolecular micelles was swollen above the est. The supramolecular aggregates obtained below the est had a spherical topology and a relatively uniform size according to electron microscopy analysis. The temperature- responsive self-assembly process was fully reversible. The est varied with the copolymer concentration and shifted to higher temperatures as the length of the P2VP chains in the shell increased. The self-assembly mechanism reported provides a path to new types of "smart" supramolecular structures.

Original languageEnglish
Pages (from-to)7166-7172
Number of pages7
Issue number19
Publication statusPublished - Oct 14 2008


ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

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