Issue 41, 2008
From the journal:

Journal of Materials Chemistry

Novel photoactive hyperbranched poly(aryl ether)s containing azobenzenechromophores for optical storage

Xingbo Chen,a   Yunhe Zhang,a   Baijun Liu,a   Jingjing Zhang,a   Hui Wang,a   Wenyi Zhang,b   Qidai Chen,b   Songhao Peic  and  Zhenhua Jiang*a  

* Corresponding authors

a Alan G. MacDiarmid Institute, Jilin University, Changchun, China
E-mail: jiangzhenhua@jlu.edu.cn
Fax: +86 431-85168886
Tel: +86 431-85168886

b State Key Lab on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China

c College of Physics, Jilin University, Changchun, China

Abstract

Two novel hyperbranched poly (aryl ether)s with azobenzene moieties in both the main chain and side chain of the branched arms were prepared by using B3 + A2 methodology via a nucleophilic aromatic substitution polycondensation. Structures of the hyperbranched poly (aryl ether)s with azobenzene moieties (azo-HPAEs) were characterized by means of IR, UV-visible, 1H NMR spectroscopy, and XRD. It is shown that both the azo-HPAEs exhibit high glass transition temperatures (Tg), excellent thermal stability and homogeneous photochromic behavior. By exposing their spin-coating films to an interference pattern of laser beam, both the azo-HPAEs could be used for rapid (within 30 s) fabrication of surface-relief gratings (SRGs). The obtained SRGs present no shape changes even at temperatures up to 200 °C. Especially, the azo-HPAE with azobenzene moieties in the side chain shows larger photoinduced birefringence intensity and better reversible optical storage than the one with azobenzene moieties in the main chain upon irradiation with 532 nm Nd:YAG laser. The novel azo-PAEs are photoactive to UV light (355 nm), making them potentially useful for high density information storage.

Graphical abstract: Novel photoactive hyperbranched poly(aryl ether)s containing azobenzene chromophores for optical storage

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Article information

DOI
https://doi.org/10.1039/B807956K
Article type
Paper
Submitted
09 May 2008
Accepted
06 Aug 2008
First published
23 Sep 2008

J. Mater. Chem., 2008,18, 5019-5026

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Novel photoactive hyperbranched poly(aryl ether)s containing azobenzene chromophores for optical storage

X. Chen, Y. Zhang, B. Liu, J. Zhang, H. Wang, W. Zhang, Q. Chen, S. Pei and Z. Jiang, J. Mater. Chem., 2008, 18, 5019 DOI: 10.1039/B807956K

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