Technical Paper Archive


This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.


For older papers not listed here, please send your request, including Meeting Year, Title, Author, and Paper # to: cbrady@rubber.org


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Low Voltage Driven Large Bending of Ionic Liquid Crystal Elastomers

E01 jakli low voltage driven large bending of ionic liquid crystal elastomers

Event: 196th Technical Meeting - Fall 2019
Location: Cleveland, OH
Date: October 08, 2019
Author: Antal Jakli
Paper Number: E01

Price: $20.00

  • Motivated by the success of ionic electroactive polymers (iEAP) [1], we dispersed ionic liquids into liquid crystal elastomers (LCE) and studied their voltage induced bending properties by using PEDOT/PSS electrodes. We find the amplitude and switching time of bending depends on the alignment and size of LCE. The amplitude is largest, and switching is fastest (bending angle about 20o and switching time is 2 s under 2 V for 2 cm long, 2 mm wide and 150 ┬Ám width strip) for planar aligned cells, medium for hybrid alignment, and smallest for homeotropic aligned cells. The heating effect of the current is found to be negligible. The bending strain is comparable to the best iEAPs. Importantly hybrid iLCEs can be multi-responsive, as bending can also be induced thermally in hybrid LCE films or by light in azo containing LCEs [2]. Such multi-responsiveness offers interesting new applications compared to iEAPs

    Papers from 196th Technical Meeting - Fall 2019

    Items from 196th Technical Meeting - Fall 2019