Facile fabrication of polymer-dispersed liquid crystal films via nucleophile-initiated thiol-ene click reaction |
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| Authors: | Zhiqing Shi Yu Guan Fei Wang Yuliang Zhang Feifei Deng Yawei Liu |
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| Institution: | School of polymer science and engineering, Sichuan University, Chengdu, China |
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| Abstract: | Nucleophile-initiated thiol-ene click reaction was employed to prepare polymer-dispersed liquid crystal (PDLC) films initiated by 4-dimethylaminopyridine (DMAP). The PDLC films were prepared in different temperature. It is found that the reaction temperature has a big influence on the electro-optical properties of PDLC films and 60°C is the optimal temperature to fabricate PDLC film which has high ON state transmittance (Ton) and low OFF state transmittance (Toff). UV-Visible spectrophotometer, scanning electron microscopy and polarised optical microscope were employed to explore the obtained PDLC films. Nucleophile-initiated thiol-ene click reaction, without UV-light, probably provides a new pathway to prepare PDLC films. |
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| Keywords: | Click reaction nitrogen-centred nucleophile temperature PDLC electro-optical properties |
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