Multifunctional photochromic spiropyran dendrimers and their relaxation behaviors of photochromism

Min Ju Cho, Go Woon Kim, Woong Gi Jun, Sang Kyu Lee, Jung Il Jin, Dong Hoon Choi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

First and second generation dendrimers that exhibit unique photochromic behavior were synthesized through multi-step reactions. Their photochromic behavior under illumination of monochromatic ultraviolet light (λ = 365 nm) was investigated. The colorless dendritic dye solution and its film exhibit typical ring opening and E/Z geometrical transformation from spiropyran to merocyanine. The stability of photochromism in the two dendrimers was much better than that observed in the dye-attached polymer or dye-doped polymer system. Particularly, blend material system of photochromic dendrimer and photocrosslinkable dendrimer showed much better stability of the photochromism.

Original languageEnglish
Pages (from-to)52-60
Number of pages9
JournalThin Solid Films
Volume500
Issue number1-2
DOIs
Publication statusPublished - 2006 Apr 3

Keywords

  • Dendrimer
  • Photochromism
  • Photocrosslink
  • Spiropyran
  • Stability

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

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