Elastomers with tunable dielectric and electromechanical properties. Issue 44 (2nd November 2016)

• Record Type: Journal Article
• Authors: Dünki, Simon J.; Nüesch, Frank A.; Opris, Dorina M.
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 44(2016)
• Page Start: 10545
• Page End: 10553
• Publication Date: 2016-11-02
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c6tc01731b
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A one-step process to prepare novel electroresponsive silicone elastomersM( x : y ) with tunable dielectric permittivity from 4.3 to 17.4 is presented. Abstract : Novel electroresponsive silicone elastomers modified with nitrile groups are presented, whose dielectric permittivity ( ε ′) is tuned from ε ′ = 4.3 to ε ′ = 17.4. They are prepared in a one-step process starting from a high molecular weight poly(methylvinylsiloxane) to which polar nitrile groups and cross-links are introduced in thin films. Different ratios of butanethiol/3-mercaptoproprionitrile are used to vary the amount of nitrile groups in these elastomers, while 2, 2′-(ethylenedioxy)diethanethiol is used as a cross-linker. Because of the systematic nature of this investigation, we not only present promising elastic materials with remarkable dielectric, mechanical, and electromechanical properties but also provide a guideline for materials design aimed at dielectric elastomer actuator applications.