3 years ago

Facile fabrication of polymer-dispersed liquid crystal films via nucleophile-initiated thiol-ene click reaction

Facile fabrication of polymer-dispersed liquid crystal films via nucleophile-initiated thiol-ene click reaction
Yuliang Zhang, Fei Wang, Feifei Deng, Yinghan Wang, Yawei Liu, Yu Guan, Zhiqing Shi

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.

Publisher URL: http://www.tandfonline.com/doi/full/10.1080/02678292.2017.1308023

DOI: 10.1080/02678292.2017.1308023

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