A high-modulus electroactive polymer acting as a robust ionomer for ionic micro-actuators

Gokhan Hatipoglu, Yang Liu, Ran Zhao, Mitra Yoonessi, Dean M. Tigelaar, Srinivas Tadigadapa, Q. M. Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A high modulus, sulfonated polymer synthesized from one-to-one ratio 4,6-bis(4-hydroxyphenyl)-N, N-diphenyl-1,3,5-triazin-2-amine and 4,4′-biphenol with bis(4-fluorophenyl) sulfone (DPA-PS:BP) is exploited as an ionomer for micro-ionic actuators. A unique and attractive feature of the ionomer is that it can contain high amounts of ionic liquid (IL) as an electrolyte while maintaining a high elastic modulus (i.e 600 MPa for 150 wt% uptake), which is more than one order of magnitude higher than the state-of-the-art of ionomers with working electrolytes. Such a high modulus makes it possible for the ionomer to be fabricated into micro-actuators with high uptake of ILs and low operation voltage (< 4 V), in various free standing forms with ion milling techniques, which are attractive for MEMS applications. As an initial demonstration of a DPA-PS:BP based ionic micro-actuator, a cantilever (200 μm x 33 μm x 5 μm) is manufactured by Focused Ion Beam (FIB) and characterized. Under the voltage of 1.6 V, the bending actuator exhibits an intrinsic strain from the active ionomer of 1.1% and a corresponding blocking force of 27 μN.

Original languageEnglish (US)
Title of host publicationMultifunctional Polymer-Based Materials
Pages235-239
Number of pages5
DOIs
StatePublished - Aug 20 2012
Event2011 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 28 2011Dec 2 2011

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1403
ISSN (Print)0272-9172

Other

Other2011 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/28/1112/2/11

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Hatipoglu, G., Liu, Y., Zhao, R., Yoonessi, M., Tigelaar, D. M., Tadigadapa, S., & Zhang, Q. M. (2012). A high-modulus electroactive polymer acting as a robust ionomer for ionic micro-actuators. In Multifunctional Polymer-Based Materials (pp. 235-239). (Materials Research Society Symposium Proceedings; Vol. 1403). https://doi.org/10.1557/opl.2012.372