Fabrication of polymer‐dispersed liquid crystals with low driving voltage based on the thiol‐ene click reaction |
| |
| Authors: | Zhiqing Shi Leishan Shao Yuliang Zhang Yu Guan Fei Wang Feifei Deng Yawei Liu Yinghan Wang |
| |
| Affiliation: | 1. State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, PR China;2. Research Institute of Maoming Petrochemical Company, SINOPEC, PR China |
| |
| Abstract: | Polymer‐dispersed liquid crystals (PDLCs ) with a well‐defined polymer matrix were successfully fabricated by the thiol‐ene click reaction based on poly(ethylene glycol) diacrylate (PEGDA ) and trimethylolpropanetris‐(3‐mercaptopropionate) (TMTP ). UV ?visible spectrophotometry, Fourier transform IR spectroscopy, SEM and polarized optical microscopy were employed to explore the PDLC films obtained. Electro‐optical properties were studied with a UV ?visible spectrophotometer. It was found that the PDLC films with optimal thiol content fabricated by the thiol‐ene click reaction showed high transmittance, low driving voltage and a low memory effect. It was concluded that the driving voltage change of PDLCs with different thiol concentrations was caused by the polymerization rate and the structure of the polymer matrix. © 2017 Society of Chemical Industry |
| |
| Keywords: | polymer‐dispersed liquid crystals thiol‐ene click reaction driving voltage memory effect |
|
|
