title: A Study on the Electro-Optical Properties of Thiol-Ene Polymer Dispersed Cholesteric Liquid Crystal (PDChLC) Films.
abstract: In this study, a polymer dispersed cholesteric liquid crystal (PDChLC) film obtained via a one-step fabrication technique based on photopolymerization of a thiol-acrylate reaction system was prepared and characterized for the first time. The effects of the chiral dopant, the influence of thiol monomer functionality and content on the morphology and subsequent performance of the PDChLC films were systematically investigated. It was demonstrated that the addition of a small amount of chiral dopant slightly increased the driving voltage, but decreased the off-state transmittance significantly. Furthermore, scanning electron micrographs (SEM) shown that the liquid crystal (LC) droplet size decreased at first and then increased with the increasing amount of thiol monomer functionality, while increasing the thiol content increased the LC droplet size. Correspondingly, the electro-optical switching behavior was directly dependent on LC droplet size. By tuning the raw material composition, PDChLC film with optimized electro-optical performance was prepared.
authors.affiliation: Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China. syj_anshan@sina.com.|Anshan Normal University, Anshan 114005, Liaoning, China. syj_anshan@sina.com.
authors.forename: Yujian
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China. gaoyanzi@pku.edu.cn.|Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing 100871, China. gaoyanzi@pku.edu.cn.
authors.forename: Yanzi
authors.initials: Y
authors.lastname: Gao
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China. luoqiudehudie@163.com.
authors.forename: Le
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China. jianhua_ustb@163.com.
authors.forename: Jianhua
authors.initials: J
authors.lastname: Huang
authors.affiliation: Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China. Fanghua0229@126.com.
authors.forename: Hua
authors.initials: H
authors.lastname: Fang
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China. mahaipeng6666@163.com.
authors.forename: Haipeng
authors.initials: H
authors.lastname: Ma
authors.affiliation: Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China. 5896326123@163.com.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China. g20158323@xs.ustb.edu.cn.
authors.forename: Jie
authors.initials: J
authors.lastname: Yang
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China. songping1985@163.com.
authors.forename: Ping
authors.initials: P
authors.lastname: Song
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China. zhangcuihong@pku.edu.cn.|Department of Applied Statistics and Science, Xijing University, Xi'an 710123, Shaanxi, China. zhangcuihong@pku.edu.cn.
authors.forename: Cuihong
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China. zhanglanying@pku.edu.cn.|Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing 100871, China. zhanglanying@pku.edu.cn.
authors.forename: Lanying
authors.initials: L
authors.lastname: Zhang
authors.affiliation: College of Medical Laboratory, Dalian Medical University, Dalian 116044, Liaoning, China. lifasheng@dmu.edu.cn.
authors.forename: Fasheng
authors.initials: F
authors.lastname: Li
authors.affiliation: Department of Applied Statistics and Science, Xijing University, Xi'an 710123, Shaanxi, China. zyz19870226@163.com.
authors.forename: Yuzhen
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Applied Statistics and Science, Xijing University, Xi'an 710123, Shaanxi, China. likexuan@xijing.edu.cn.
authors.forename: Kexuan
authors.initials: K
authors.lastname: Li
mesh_terms: D000179:Acrylates / Q000737:chemistry*; D004560:Electricity; D008027:Light; D050866:Liquid Crystals / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D015394:Molecular Structure; D055620:Optical Phenomena; D011108:Polymers / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry*
chemical_list: D000179:Acrylates; D011108:Polymers; D013438:Sulfhydryl Compounds; C422409:liquid crystal polymer
keywords: chiral; electro-optical performance; liquid crystal; polymer dispersed cholesteric liquid crystal