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Gao Y, Chen J, Zhang Y, Zhao Y, Jia X, Da X, Gao G, Xi K, Ding S. Phase-Separated Dielectric Gels Based on Christiansen Effect. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208156. [PMID: 36864588 DOI: 10.1002/smll.202208156] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/12/2023] [Indexed: 06/02/2023]
Abstract
Phase separation is a trivial phenomenon but a mature strategy in materials science. The flexible materials are provided toughness and strength by phase separation, yet there are few applications in optics and electronics industry. A novel phase-separated dielectric gel (PSDG) with a strong Christiansen effect is prepared via radical polymerization using hydroxyethyl methacrylate as a monomer, 4-cyano-4'-pentylbiphenyl and tributyl citrate as mixed solvents, and polyethylene glycol as a softener. The solvent ratios and ambient conditions can efficiently change the color of PSDG which makes it strongly selective for the wavelength of transmitted light. Besides, it has a high dielectric constant (10 at 1 kHz), sensitively responding to the electric field. The phase separation degree of PSDG varies with applied electric field, which will induce its transmittance alteration accordingly. The current field sensitive PSDG provides a novel idea for "smart windows". Additionally, varying the size and shape of the electrodes can precisely control the phase separation in PSDG and also enables the function of free writing on flexible materials. Therefore, the designed PSDG has great application potential for flexible touch and interesting interactions.
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Affiliation(s)
- Yiyang Gao
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
| | - Jing Chen
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
| | - Yanan Zhang
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
| | - Yuanjun Zhao
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
| | - Xin Jia
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
| | - Xinyu Da
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
| | - Guoxin Gao
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
| | - Kai Xi
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
| | - Shujiang Ding
- School of Chemistry, Xi'an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, State Key Laboratory for Mechanical Behavior of Materials, 710049, Xi'an, P. R. China
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Lv J, Huang L, Ning J, Tian C, Liu Q, Zeng F, Kong W, Cai X. A high dielectric constant copolyamide based on high dipole density. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-021-02877-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Qin H, Feng Y, Liu K, Mi J, Zhang L, Tian M. From Molecular-Scale Cavities to Nanoscale Dielectric Breakdown in Polydimethylsiloxane Induced by Local Electric Field. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Han Qin
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yancong Feng
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Kun Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianguo Mi
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liqun Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ming Tian
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
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Sheima Y, Yuts Y, Frauenrath H, Opris DM. Polysiloxanes Modified with Different Types and Contents of Polar Groups: Synthesis, Structure, and Thermal and Dielectric Properties. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00362] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yauhen Sheima
- Functional Polymers, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
- Ecole Polytechnique Fédérale de Lausanne (EPFL), Institut des Matériaux, Station 12, CH 1015 Lausanne, Switzerland
| | - Yulia Yuts
- Functional Polymers, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Holger Frauenrath
- Ecole Polytechnique Fédérale de Lausanne (EPFL), Institut des Matériaux, Station 12, CH 1015 Lausanne, Switzerland
| | - Dorina M. Opris
- Functional Polymers, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
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