Preparation and optical properties of polystyrene nanocapsules containing photochromophores

Mijeong Han, Eunha Lee, Eunkyoung Kim

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Polymeric nanocapsules were prepared by the convenient one-step miniemulsion polymerization. Aqueous miniemulsion was obtained by mixing monomer, photochromophore, and initiator, and then adding the solution to an aqueous solution of surfactant and water, followed by ultrasonification. As the monomer was polymerized at 60 °C, polymeric nanocapsule particles were obtained. The morphology of the prepared nanocapsules was studied by transmission electron microscopy and showed core/shell structure with average diameter of 50-150 nm. Different types of photochromophores and initiators were applied to prepare nanocapsules and their effects on the morphology of the capsules were investigated. Thin films on glass substrates were prepared by spin coating, using a diarylethene containing nanocapsule solution. The color of the thin film was changed immediately to red upon irradiation with a UV light, which was bleached completely to an original state with the light of 500-650 nm.

Original languageEnglish
Pages (from-to)579-583
Number of pages5
JournalOptical Materials
Volume21
Issue number1-3
DOIs
Publication statusPublished - 2003 Jan 1

Fingerprint

Nanocapsules
Polystyrenes
initiators
polystyrene
Optical properties
monomers
optical properties
preparation
capsules
thin films
coating
polymerization
surfactants
aqueous solutions
color
transmission electron microscopy
Monomers
irradiation
glass
Thin films

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

Cite this

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Preparation and optical properties of polystyrene nanocapsules containing photochromophores. / Han, Mijeong; Lee, Eunha; Kim, Eunkyoung.

In: Optical Materials, Vol. 21, No. 1-3, 01.01.2003, p. 579-583.

Research output: Contribution to journalArticle

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