Electromechanical performance and membrane stability of novel ionic polymer transducers constructed in the presence of ionic liquids

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dc.contributor.author Akle, Barbar J.
dc.contributor.author Duncan, Andrew J.
dc.contributor.author Leo, Donald J.
dc.contributor.author Long, Timothy E.
dc.contributor.author Park, Jong K.
dc.contributor.author Moore, Robert B.
dc.date.accessioned 2017-05-30T12:30:10Z
dc.date.available 2017-05-30T12:30:10Z
dc.date.issued 2017-05-30
dc.identifier.uri http://hdl.handle.net/10725/5686
dc.description.abstract Ionic polymer transducers (IPT) are a class of devices that leverage electroactive polymers (EAP), specifically electrolyte-swollen ionomeric membranes, to perform energy conversions. Energy transformation from input to output is referred to as transduction and occurs between the electrical and mechanical domains. The present study expands on IPT investigations with a novel series of sulfonated polysulfones (sBPS), with specific interest in the effect of polymer topology on actuator performance. A hydrophilic ionic liquid was combined with a series of sBPS through a casting method to create hydrated membranes that contained target uptakes (f ) of the diluent. The ionic liquid's hydrophilic, yet organic nature raised the issue of its degree of compatibility and miscibility with the microphase separated domains of the host ionomeric membrane. Initial studies of the ionomer - ionic liquid morphology were performed with synchrotron small angle X-ray scattering (SAXS). The effective plasticization of the membranes was identified with dynamic mechanical analysis (DMA) in terms of varied storage modulus and thermal transitions with ionic liquid uptake. Electrical impedance spectroscopy (EIS) was employed to quantify the changes in ionic conductivity for each sBPS ionomer across a range of uptake. Combined results from these techniques implied that the presence of large amounts of ionic liquid swelled the hydrophilic domains of the ionomer and greatly increased the ionic conductivity. Decreases in storage modulus and the glass transition temperature were proportional to one another but of a lesser magnitude than changes in conductivity. The present range of ionic liquid uptake for sBPS was sufficient to identify the critical uptake (f c ) for three of the four ionomers in the series. Future work to construct IPTs with these components will use the critical uptake as a minimum allowable content of ionic liquid to optimize the balance of electrical and mechanical properties for the device components. en_US
dc.language.iso en en_US
dc.publisher SPIE en_US
dc.title Electromechanical performance and membrane stability of novel ionic polymer transducers constructed in the presence of ionic liquids en_US
dc.type Conference Paper / Proceeding en_US
dc.author.school SOE en_US
dc.author.idnumber 200700940 en_US
dc.author.department Industrial And Mechanical Engineering en_US
dc.description.embargo N/A en_US
dc.keywords Polymers en_US
dc.keywords Transducers en_US
dc.keywords Data storage en_US
dc.keywords Electroactive polymers en_US
dc.keywords Glasses en_US
dc.keywords Dielectric spectroscopy en_US
dc.keywords X-rays en_US
dc.keywords Scattering en_US
dc.keywords Actuators en_US
dc.identifier.doi https://doi.org/10.1117/12.815874 en_US
dc.identifier.ctation Duncan, A. J., Leo, D. J., Long, T. E., Akle, B. J., Park, J. K., & Moore, R. B. (2009, March). Electromechanical performance and membrane stability of novel ionic polymer transducers constructed in the presence of ionic liquids. In SPIE Smart Structures and Materials+ Nondestructive Evaluation and Health Monitoring (pp. 728711-728711). International Society for Optics and Photonics. en_US
dc.author.email barbar.akle@lau.edu.lb en_US
dc.conference.date March 08, 2009 en_US
dc.conference.pages 728711-728711 en_US
dc.conference.place San Diego, California, USA en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=821859 en_US
dc.author.affiliation Lebanese American University en_US
dc.relation.numberofseries 7287 en_US
dc.title.volume Electroactive Polymer Actuators and Devices (EAPAD) en_US

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