Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: S1.00031 : Time Scales of Ion Transport in Imidazolium-based Polymers
Author:
We synthesize and characterize ionic polymers with imidazolium
cations
covalently attached to the polymer chain and various ionic liquid
counterions for ionic actuators. The imidazolium cations are
attached to the
polymers with flexible alkyl spacer chains and also have a
variety of alkyl
and alkyl ether termini. The anionic counterions are also varied;
tetrafluoroborate (BF$_{4})$, hexafluorophosphate (PF$_{6})$ and
bis(trifluoromethanesulfonyl)imide (TFSI) were mainly used in
this study.
Dielectric relaxation spectroscopy (DRS) is utilized to measure the
dielectric constant and conductivity, as a function of
temperature. The 1953
Macdonald model is applied to estimate the number density of
conducting ions
and their mobility, from electrode polarization at low
frequencies in DRS.
The 1988 Dyre model is used to determine ion hopping times from the
frequency-dependent conductivity at higher frequencies. The
consequence of
polymer structural variations will be elucidated for these vital
characteristics.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.S1.31
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2021 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
1 Research Road, Ridge, NY 11961-2701
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700