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Proceedings Paper

Photoisomerization of azobenzene moiety in crosslinking polymer materials
Author(s): Hui Wang; Wei-Qiang Chen; Feng Jin; Xian-Zi Dong; Zhen-Sheng Zhao; Xuan-Ming Duan
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Paper Abstract

In this study, a series of acryloyloxy-substituted azobenzene derivatives, 3-(tert-butyl)-4,4’-bisacryoloxy-azobenzene (tBu-Azo-AO), 3-(tert-butyl)-4,4’-bis[3-(acryoloxy)propoxy]-azobenzene (tBu-Azo-AO3) and 3-(tert-butyl)-4,4’-bis[6-(acryoloxy)hexyloxy]-azobenzene (tBu-Azo-AO6) were synthesized and employed as monomers to prepare polymer films by copolymerizing dipentaerythritol hexaacrylate (DPE-6A) and methyl methacrylate (MMA), respectively. When exposed to a nanosecond laser beam at the wavelength of 355 nm, ultraviolet-visible (UV-Vis) absorption spectra of the resultant polymer films with different irradiation time were monitored. On the basis of the absorbance of the π-π* electronic transition, the kinetics of trans-to-cis photoisomerization of three kinds of azobenzene moieties were demonstrated and found to be influenced by both the pump energy and azobenzene concentration.

Paper Details

Date Published: 11 October 2012
PDF: 9 pages
Proc. SPIE 8474, Optical Processes in Organic Materials and Nanostructures, 847414 (11 October 2012); doi: 10.1117/12.929146
Show Author Affiliations
Hui Wang, Technical Institute of Physics and Chemistry (China)
Graduate Univ. of the Chinese Academy of Sciences (China)
Wei-Qiang Chen, Technical Institute of Physics and Chemistry (China)
Feng Jin, Technical Institute of Physics and Chemistry (China)
Xian-Zi Dong, Technical Institute of Physics and Chemistry (China)
Zhen-Sheng Zhao, Technical Institute of Physics and Chemistry (China)
Xuan-Ming Duan, Technical Institute of Physics and Chemistry (China)


Published in SPIE Proceedings Vol. 8474:
Optical Processes in Organic Materials and Nanostructures
Rachel Jakubiak; Manfred Eich; Jean-Michel Nunzi, Editor(s)

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