DIELECTRIC ELASTOMER MATERIAL AND TRANSDUCER USING THE SAME

• Main Authors: MATSUSHITA YUKO, KOBAYASHI ATSUSHI, OSETO YUTAKA, TAKAHARA ATSUSHI, TAKAHASHI WATARU, ITO TAKAMASA, MATSUNO RYOSUKE, TAKAGAKI YUSAKU, YOSHIKAWA HITOSHI
• Format: Patent
• Language: English; Japanese
• Published: 12.04.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a flexible dielectric elastomer material having a large relative permittivity, and to provide a flexible transducer using the dielectric elastomer material.SOLUTION: The dielectric elastomer material comprises a polymer having such a structure that at least one of a monomer A and a monomer C having a crosslinkable functional group, and a monomer B having a polar group are randomly or alternately copolymerized. In a structural unit comprising the monomer B in the copolymer, the polar group is bonded to the polymer main chain via at least three atoms linearly connected. A transducer 1 includes a dielectric layer 10 made of the dielectric elastomer material and a plurality of electrodes 11a, 11b disposed with the dielectric layer 10 interposed therebetween.SELECTED DRAWING: Figure 1 【課題】 比誘電率が大きく、柔軟な誘電エラストマー材料を提供する。当該誘電エラストマー材料を用いて柔軟なトランスデューサを提供する。【解決手段】 誘電エラストマー材料は、モノマーＡと、架橋可能な官能基を有するモノマーＣと、の少なくとも一方と、極性基を有するモノマーＢと、がランダムまたは交互に共重合された構造を有する共重合体を含む。該共重合体中、該モノマーＢからなる構成単位において、該極性基は直鎖状に繋がる３つ以上の原子を介してポリマー主鎖に結合されている。トランスデューサ１は、誘電エラストマー材料からなる誘電層１０と、誘電層１０を介して配置される複数の電極１１ａ、１１ｂと、を備える。【選択図】 図１