Issue 14, 2013
From the journal:

Journal of Materials Chemistry C

The AIEE effect and two-photon absorption (TPA) enhancement induced by polymerization: synthesis of a monomer with ICT and AIE effects and its homopolymer by ATRP and a study of their photophysical properties†

Pei-Yang Gu,a   Cai-Jian Lu,a   Zhi-Jun Hu,b   Na-Jun Li,a   Ting-ting Zhao,b   Qing-Feng Xu,*a   Qing-Hua Xu,ac   Jian-Dong Zhanga  and  Jian-Mei Lu*a  

* Corresponding authors

a College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
E-mail: lujm@suda.edu.cn, xuqingfeng@suda.edu.cn
Fax: +86 0512 65880367
Tel: +86 0512 65880368

b Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, China

c Department of Chemistry, National University of Singapore (NUS), Singapore

Abstract

A monomer including pyrazoline and l,8-naphthalimide moieties and its homopolymer were prepared by atom transfer radical polymerization (ATRP). The emission of the monomer can be tuned by choosing solvents with different polarities or aggregation-induced emission (AIE). The rotation of the fluorophore of the homopolymer was further limited by both the side chain and the flexible main chain, resulting in emission enhancement in strong polar solution and aggregation-induced emission enhancement (AIEE) characteristics. More interestingly, compared to that of the monomer, the two-photon absorption (TPA) property of the homopolymer is much more enhanced both in toluene and aggregates. This is attributed to the amplification effect of the polymer chain. This may become a new and promising method with which to prepare TPA polymers.

Graphical abstract: The AIEE effect and two-photon absorption (TPA) enhancement induced by polymerization: synthesis of a monomer with ICT and AIE effects and its homopolymer by ATRP and a study of their photophysical properties

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Article information

DOI
https://doi.org/10.1039/C3TC00738C
Article type
Paper
Submitted
29 Nov 2012
Accepted
14 Feb 2013
First published
15 Feb 2013

J. Mater. Chem. C, 2013,1, 2599-2606

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The AIEE effect and two-photon absorption (TPA) enhancement induced by polymerization: synthesis of a monomer with ICT and AIE effects and its homopolymer by ATRP and a study of their photophysical properties

P. Gu, C. Lu, Z. Hu, N. Li, T. Zhao, Q. Xu, Q. Xu, J. Zhang and J. Lu, J. Mater. Chem. C, 2013, 1, 2599 DOI: 10.1039/C3TC00738C

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