Fabrication of polymer-dispersed liquid crystals with low driving voltage based on the thiol-ene click reaction

被引：14
|
作者：
Shi, Zhiqing [1 ]
Shao, Leishan [2 ]
Zhang, Yuliang [1 ]
Guan, Yu [1 ]
Wang, Fei [1 ]
Deng, Feifei [1 ]
Liu, Yawei [1 ]
Wang, Yinghan [1 ]
机构：
[1] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
[2] SINOPEC, Res Inst Maoming Petrochem Co, Beijing, Peoples R China
来源：
POLYMER INTERNATIONAL | 2017年 / 66卷 / 07期
关键词：
polymer-dispersed liquid crystals; thiol-ene click reaction; driving voltage; memory effect; ELECTROOPTICAL PERFORMANCE; RESPONSE-TIMES; FILMS; PHOTOPOLYMERIZATION; SCATTERING; CHAIN;
D O I：
10.1002/pi.5365
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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. (c) 2017 Society of Chemical Industry
引用
收藏
页码：1094 / 1098
页数：5
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