Abstract
A series of nonlinear optical chromophores with the strong electron-withdrawing tricyanopyrroline (TCP) acceptor and rigid-flexible dendron was synthesized and their thermal and optical properties were investigated. Modification of the TCP chromophore with rigid-flexible dendron groups provides reduction of dipole–dipole interactions and thus great improvement of the macroscopic electro-optic (EO) response of the polymeric materials obtained by incorporating these derivatives as a guest in a high Tg amorphous polycarbonate (APC). The best result was obtained with chromophore Lj-Dr1, with three rigid-flexible dendrons, which shows the largest EO activity (39 pm V−1 at 1,310 nm). Furthermore, all chromophores in this study possess good processability and exhibit high thermal decomposition temperatures (highest T d = 300 °C).
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We are grateful to the Chinese Academy of Science Knowledge Innovation Project Key Direction Project foundation (KJCX2.HO2) for financial support.
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Liu, J., Bo, S., Liu, X. et al. Enhanced poling efficiency in rigid-flexible dendritic nonlinear optical chromophores. J Incl Phenom Macrocycl Chem 68, 253–260 (2010). https://doi.org/10.1007/s10847-010-9781-9
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DOI: https://doi.org/10.1007/s10847-010-9781-9