Supramolecular assembly of end-functionalized polymer mixtures confined in nanospheres

June Huh, Ji Young Jung, Jea Uk Lee, Heesook Cho, Soojin Park, Cheolmin Park, Won Ho Jo

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Supramolecular assembly of functionalized polymers, capable of forming block copolymer-like molecular clusters, has emerged as a promising alternative for creating nanoscopically ordered structures. Here, we demonstrate that nanospheres, which have intriguing internal nanodomains and controllable surface functionality, can be fabricated by supramolecular assembly of two complementarily end-interacting species of mono-end-functionalized polymers using the self-organized precipitation (SORP) method. An exotic internal morphology, hierarchically organized structure of perforated spherical layers, was formed inside the nanosphere prepared from the stoichiometric mixture of the end-functionalized polymers, which is due to the formation of diblock-like supramolecules and their packing frustration in the spherically confined nanospace. When the mixing ratio of the two end-functionalized polymers differs from the stoichiometric ratio, the nanoparticle surface is enriched with an excess of unpaired functionalized groups, which therefore provides us with a useful way to precisely control the surface functionality of the nanoparticles.

Original languageEnglish
Pages (from-to)115-122
Number of pages8
JournalACS Nano
Volume5
Issue number1
DOIs
Publication statusPublished - 2011 Jan 25

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Keywords

  • Confined morphology
  • End-functionalized polymers
  • Nanoparticles
  • Phase separation
  • Supramolecular assembly

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Huh, J., Jung, J. Y., Lee, J. U., Cho, H., Park, S., Park, C., & Jo, W. H. (2011). Supramolecular assembly of end-functionalized polymer mixtures confined in nanospheres. ACS Nano, 5(1), 115-122. https://doi.org/10.1021/nn101805z