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Issued by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, make any warranty, express or implied, or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represent that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government, any agency thereof, or any of their contractors or subcontractors. The views and opinions expressed herein do not necessarily state or reflect those of the United States Government, any agency thereof, or any of their contractors. Printed in the United States of America. This report has been reproduced directly from the best available copy. Available to DOE and DOE contractors from Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831 Prices available from (703) 605-6000 Web site: http://www.ntis.gov/ordering.htm Available to the public from National Technical Information Service U.S. Department of Commerce 5285 Port Royal Rd Springfield, VA 22161 NTIS price codes Printed copy: A03 Microfiche copy: A01 - 2 -
SAND2001-8166 Unlimited Release Printed February 2001 DIRECT MEASUREMENT OF EXTENSION AND FORCE IN CONDUCTIVE PLOYMER GEL ACTUATORS S. H. Goods, J. S. Korellis Materials Mechanics Department L. L. Whinnery Materials Chemistry Department Sandia National Laboratories Livermore, California 94551-0969 D. J. Irvin US Navy, NAWCWD Research Department Chemistry & Materials Division, Code 4T4200D China Lake, CA 93555 – 6100 ABSTRACT The synthesis of a polythiophene-based conductive polymer gel is described. Preliminary measurements of the electrochemically driven extension and force response of this gel are reported when driven under the action of an applied square-wave potential. Over each square wave interval (i.e., one oxidation pulse followed by one reduction pulse), the axial change in dimension was found to be approximately 2%. Some hysteresis was noted in that the cylindrical specimens did not return to their original axial dimension. The axial pressure generated by the expansion of the gel against a fixed surface was also measured and found to be on the order of 15 kPa - 3 -
Page 1: SANDIA REPORT SAND2001-8166 Unlimit
Page 5 and 6: TABLE OF CONTENTS I. INTRODUCTION..
Page 7 and 8: DIRECT MEASURMENT OF EXTENSION AND
Page 9 and 10: The gels were prepared as in the li
Page 11 and 12: Growth Direction Figure 3. Morpholo
Page 13 and 14: Extension (%) Current (mA) 8 7 6 5
Page 15 and 16: Pressure (kPa) 25 20 15 10 5 Pressu
Page 17 and 18: DISTRIBUTION 1 US Navy, NAWCWD Rese

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