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Hollow nanotubular toroidal polymer microrings

Authors
  • lee, jiyeong
  • baek, kangkyun
  • kim, myungjin
  • yun, gyeongwon
  • young, ho ko
  • hwang, ilha
  • kim, jeehong
  • natarajan, ramalingam
  • park, chan gyung
  • sung, wokyung
  • Kim, K
Publication Date
Feb 25, 2014
Source
[email protected]
Keywords
License
Unknown
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Abstract

Despite the remarkable progress made in the self-assembly of nano-and microscale architectures with well-defined sizes and shapes, a self-organization-based synthesis of hollow toroids has, so far, proved to be elusive. Here, we report the synthesis of polymer microrings made from rectangular, flat and rigid-core monomers with anisotropically predisposed alkene groups, which are crosslinked with each other by dithiol linkers using thiol-ene photopolymerization. The resulting hollow toroidal structures are shape-persistent and mechanically robust in solution. In addition, their size can be tuned by controlling the initial monomer concentrations, an observation that is supported by a theoretical analysis. These hollow microrings can encapsulate guest molecules in the intratoroidal nanospace, and their peripheries can act as templates for circular arrays of metal nanoparticles. / Despite the remarkable progress made in the self-assembly of nano-and microscale architectures with well-defined sizes and shapes, a self-organization-based synthesis of hollow toroids has, so far, proved to be elusive. Here, we report the synthesis of polymer microrings made from rectangular, flat and rigid-core monomers with anisotropically predisposed alkene groups, which are crosslinked with each other by dithiol linkers using thiol-ene photopolymerization. The resulting hollow toroidal structures are shape-persistent and mechanically robust in solution. In addition, their size can be tuned by controlling the initial monomer concentrations, an observation that is supported by a theoretical analysis. These hollow microrings can encapsulate guest molecules in the intratoroidal nanospace, and their peripheries can act as templates for circular arrays of metal nanoparticles. / X / 1 / 22 / 17

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