Polyelectrolyte gels in electric fields: a theoretical and experimental approach

Rainer W. Guelch; Jens Holdenried; Andrea Weible; Thomas Wallmersperger; Bernd Kroeplin

doi:10.1117/12.387778

7 June 2000 Polyelectrolyte gels in electric fields: a theoretical and experimental approach

Rainer W. Guelch, Jens Holdenried, Andrea Weible, Thomas Wallmersperger, Bernd Kroeplin

Proceedings Volume 3987, Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD); (2000) https://doi.org/10.1117/12.387778
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

In order to gain more insight into basic principles of the nature of polymer hydrogels which are able to execute work by large deformations in electric fields, this study is mainly focused on those gels with a polyacrylamide backbone being very suitable for considerably varying their physicochemical properties simply by specific copolymerization. In the experimental part, the Donnan potential has been registered for the first time in PAAm/PAA gels in varying electric fields and different chemical environments with a new microelectrode technique. The mechanical properties of the gels have been characterized by measurements of swelling ratio, elastic modulus and being in dynamics under various stimuli. In the theoretical part, a model based both on this theory and the measured mechanical parameters, the bending dynamics of a polyelectrolyte gel in an electric field can be evaluated. Numerical simulations employing finite element discretization demonstrate the potential and the validity of the model. A promising correlation between theory and experiment could be shown.

Citation Download Citation

Rainer W. Guelch, Jens Holdenried, Andrea Weible, Thomas Wallmersperger, and Bernd Kroeplin "Polyelectrolyte gels in electric fields: a theoretical and experimental approach", Proc. SPIE 3987, Smart Structures and Materials 2000: Electroactive Polymer Actuators and Devices (EAPAD), (7 June 2000); https://doi.org/10.1117/12.387778

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