Effects of counter-ion, solvent type, and loading condition on the material response of ionic polymer transducers

Kevin M. Farinholt; Donald J. Leo

doi:10.1117/12.538837

21 July 2004 Effects of counter-ion, solvent type, and loading condition on the material response of ionic polymer transducers

Kevin M. Farinholt, Donald J. Leo

Author Affiliations +

Proceedings Volume 5387, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics; (2004) https://doi.org/10.1117/12.538837
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

A parametric study of the electromechanical response of ionic polymer transducers is presented. This study is designed to investigate the impacts of loading condition, solvent type and counter-ion on the macroscopic response of the ionic polymer and how this translates to the internal mechanisms that govern the charge-to-strain sensitivity observed in these materials. In this study three separate loading conditions are considered focusing on the material response to imposed bending, elongation and applied pressure. These tests are conducted to illustrate the difference between the mechanisms involved in sensing and actuation. The study is then expanded to include a range of solvents and their influence on the material sensitivity. Solvent types are selected to provide a range of dielectric constants (5.1-78.4) as well as viscosities in an effort to study their impact on ion transport and the actuation response. Each of the measurements is repeated for a number of counter-ion species. Varying the size and valence of the cation, material sensitivity is again measured and related to the known size and concentration of the counter-ion. These results are then compiled and compared in order to draw conclusions about specific material properties and parameters, specifically on the cross coupling terms that relate the sensing and actuation responses of the ionic polymer transducer. A discussion of the impact of these findings is also presented, along with a discussion of how these findings may be used later for empirical and analytical modeling efforts.

Citation Download Citation

Kevin M. Farinholt and Donald J. Leo "Effects of counter-ion, solvent type, and loading condition on the material response of ionic polymer transducers", Proc. SPIE 5387, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics, (21 July 2004); https://doi.org/10.1117/12.538837

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available