Issue 39, 2008
From the journal:

Journal of Materials Chemistry

Ruthenium(ii) complex-sensitized solid-state polymerization of diacetylene in the visible light region

Xian You,a   Gang Zou,*a   Qiang Ye,a   Qijin Zhanga  and  Pingsheng Hea  

* Corresponding authors

a CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Key Laboratory of Optoelectronic Science and Technology in Anhui Province, University of Science and Technology of China, Hefei, Anhui, P. R. China
E-mail: gangzou@ustc.edu.cn
Fax: +86-551-3601704
Tel: +86-551-3601698

Abstract

10,12-Pentacosadiynoic acid (DA) hybrid films with various loadings of a ruthenium(II) complex ([Ru(dpphen)3]Cl2) (0.5 to 4.6 mol%) were prepared by spin-coating. Solid-state polymerization of diacetylene monomers can be sensitized in the visible light region by embedding [Ru(dpphen)3]Cl2 into the hybrid films. In situ absorption measurement enables us to study the polymerization kinetics of DA monomers in the hybrid films. The polymerization process can be described by a first order rate equation and the polymerization rate constants are determined and discussed in detail. The mechanism of the sensitization is discussed, and an explanation based on photo-induced electron transfer from[Ru(dpphen)3]Cl2 to DA moiety is presented. Strong quenching of [Ru(dpphen)3]Cl2 fluorescence was observed even at a low monomer conversion. Enhancement of polydiacetylene (PDA) fluorescence could be observed in the presence of [Ru(dpphen)3]Cl2. The mechanism of energy migration from the [Ru(dpphen)3]Cl2 molecules to the polymer chains is also presented.

Graphical abstract: Ruthenium(ii) complex-sensitized solid-state polymerization of diacetylene in the visible light region

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Article information

DOI
https://doi.org/10.1039/B806458J
Article type
Paper
Submitted
16 Apr 2008
Accepted
10 Jul 2008
First published
27 Aug 2008

J. Mater. Chem., 2008,18, 4704-4711

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Ruthenium(II) complex-sensitized solid-state polymerization of diacetylene in the visible light region

X. You, G. Zou, Q. Ye, Q. Zhang and P. He, J. Mater. Chem., 2008, 18, 4704 DOI: 10.1039/B806458J

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