Issue 9, 2013
From the journal:

Polymer Chemistry

Orderly arranged NLO materials on exfoliated layered templates based on dendrons with alternating moieties at the periphery†

Ya-Yu Siao,a   Shi-Min Shau,a   Wei-Hsiang Tsai,a   Yung-Chung Chen,a   Tain-Hao Wu,a   Jiang-Jen Lin,b   Tzong-Ming Wu,a   Rong-Ho Lee*a  and  Ru-Jong Jeng*b  

* Corresponding authors

a Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
E-mail: rhl@nchu.edu.tw
Fax: +886-4-22854734
Tel: +886-4-22854308

b Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
E-mail: rujong@ntu.edu.tw
Fax: +886-2-33665237
Tel: +886-2-33665884

Abstract

Nonlinear optical dendrons with alternating terminal groups of the stearyl group (C18) and chromophore were prepared through a convergent approach. These chromophore-containing dendrons were used as the intercalating agents for montmorillonite via an ion-exchange process. An orderly exfoliated morphology is obtained by mixing the dendritic structure intercalated layered silicates with a polyimide. As a result, optical nonlinearity, i.e. the Pockels effect was observed for these nanocomposites without resorting to the poling process. EO coefficients of 9ā€“22 pm Vāˆ’1 were achieved despite that relatively low NLO densities were present in the nanocomposites, particularly for the samples comprising the dendrons with alternating moieties. In addition, the hedging effects of the stearyl group on the self-alignment behavior, electro-optical (EO) coefficient and temporal stability of the dendron-intercalated montmorillonite/polyimide nanocomposites were also investigated.

Graphical abstract: Orderly arranged NLO materials on exfoliated layered templates based on dendrons with alternating moieties at the periphery

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Article information

DOI
https://doi.org/10.1039/C3PY00034F
Article type
Paper
Submitted
08 Jan 2013
Accepted
12 Feb 2013
First published
14 Feb 2013

Polym. Chem., 2013,4, 2747-2759

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Orderly arranged NLO materials on exfoliated layered templates based on dendrons with alternating moieties at the periphery

Y. Siao, S. Shau, W. Tsai, Y. Chen, T. Wu, J. Lin, T. Wu, R. Lee and R. Jeng, Polym. Chem., 2013, 4, 2747 DOI: 10.1039/C3PY00034F

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