Light-driven molecular switching of atropisomeric polymers containing azo-binaphthyl groups in their side chains

By Fathy Hassan, Takafumi Sassa, Takuji Hirose, Yoshihiro Ito, Masuki Kawamoto

October 11, 2018

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  • Technique

  • Industry

Title

Light-driven molecular switching of atropisomeric polymers containing azo-binaphthyl groups in their side chains

Author

Fathy Hassan, Takafumi Sassa, Takuji Hirose, Yoshihiro Ito, Masuki Kawamoto

Year

2018

Journal

Polymer Journal

Abstract

Light-driven atropisomeric polymers containing azo and binaphthyl units with a conjugated structure were designed and synthesized. The polymers exhibit a glass transition temperature higher than 75 °C with thermal stability above 280 °C and form uniform and smooth thin films without grain boundaries. The trans-cis isomerization is efficiently reversible upon alternating photoirradiation with UV and visible light or with heat. The photoisomerization of the chiral polymer results in photomodulation of the ellipticity and optical rotation (

Full Article

https://www.nature.com/articles/s41428-018-0034-x

Instrument

FP-6500

Keywords

Fluorescence, Polymers, Quantum yield