Photoisomerization of azobenzene probes tagged to polystyrene in thin films

Keiji Tanaka, Yohei Tateishi, Toshihiko Nagamura

研究成果: ジャーナルへの寄稿記事

15 引用 (Scopus)

抄録

The photoisomerization kinetics of azobenzene (Az) chromophores tagged to polystyrene (PS) in thin films, was analyzed. It was observed that absorbance monotonically increased with decreasing wavelength, even though the Az probes were not present in the film. To confirm whether the presence of the surface layer truly accelerates the trans to cis photoisomerization, a 160 nm thick film of PS was put onto the PS-Az film with the thickness of 40 nm. The bilayer's x value decreased to 0.67 ∓ 0.01 because of the interfacial region was composed of the two original surfaces. The results show that surface region dynamically behaves as liquid for the photoinduced trans to cis isomerization of the Az probes.

元の言語英語
ページ(範囲)8188-8190
ページ数3
ジャーナルMacromolecules
37
発行部数22
DOI
出版物ステータス出版済み - 11 2 2004

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Photoisomerization
Azobenzene
Polystyrenes
Thin films
Chromophores
Isomerization
Thick films
Wavelength
Kinetics
azobenzene
Liquids

All Science Journal Classification (ASJC) codes

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

これを引用

Photoisomerization of azobenzene probes tagged to polystyrene in thin films. / Tanaka, Keiji; Tateishi, Yohei; Nagamura, Toshihiko.

:: Macromolecules, 巻 37, 番号 22, 02.11.2004, p. 8188-8190.

研究成果: ジャーナルへの寄稿記事

Tanaka, Keiji ; Tateishi, Yohei ; Nagamura, Toshihiko. / Photoisomerization of azobenzene probes tagged to polystyrene in thin films. :: Macromolecules. 2004 ; 巻 37, 番号 22. pp. 8188-8190.
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