Gel actuators based on polymeric radicals. Issue 57 (17th October 2019)

• Record Type: Journal Article
• Authors: Wickramasinhage, Ravindra N.; Goswami, Shailesh K.; McAdam, C. John; Malik, Sharali; Hanton, Lyall R.; Moratti, Stephen C.
• Is Part Of: RSC advances. Volume 9:Issue 57(2019)
• Page Start: 33187
• Page End: 33192
• Publication Date: 2019-10-17
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c9ra06364a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Reversible actuation of a radical-gel over many cycles with large strain. Abstract : Low-voltage electrochemical actuation of radical polymer gels has been demonstrated in an organic electrolyte. Polymer gels were prepared by post-modification of active-ester precursor gels with an amine-functionalised radical. A combination of few-layer graphene and multiwall carbon nanotubes gave high conductivity and improved actuation in the gels, with 32% linear actuation. The actuator system showed good stability over at least 10 cycles, showing its promise. The cycle time was several hours due to mass-transport limited transport of ions and solvent into the device.