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Madou, Mark
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  • Micro-Battery Development
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Mechanical characterizations of cast Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)/Polyvinyl Alcohol thin films

DC Field Value Language Chen, Chang-hsiu ko Torrents, Anna ko Kulinsky, Lawrence ko Nelson, Richard D. ko Madou, Mark ko Valdevit, Lorenzo ko LaRue, John C. ko 2014-04-10T01:43:45Z - 2013-06-20 ko 2011-11 -
dc.identifier.citation SYNTHETIC METALS, v.161, no.21-22, pp.2259 - 2267 ko
dc.identifier.issn 0379-6779 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract The polymer Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate), hereafter referred to as PEDOT:PSS, has electrical properties superior to those of most conducting polymers, but it is too brittle to be employed in many applications. Blending PEDOT:PSS with other polymers is a promising route to reach a good trade-off between electrical and mechanical properties. This paper describes the mechanical characterization of PEDOT:PSS/PVA (Polyvinyl Alcohol) blends. The PEDOT:PSS/PVA films used in this study are produced by casting, and uniaxial tensile tests are performed to characterize the Young's modulus, fracture strain, tensile strength, and plastic deformation behavior of the blends as a function of the weight fraction of the components. For pure PVA, the Young's modulus, fracture strain and tensile strength are found to be, respectively, 41.3 MPa, 111% and 41.3 MPa. The strength exhibits a nearly perfect bimodal behavior, suddenly increasing by a factor 2 at a PEDOT:PSS content of 30%. Importantly, the ductility remains extremely high (similar to 94%, only 20% lower than pure PVA) up to PEDOT:PSS fractions of similar to 50%. The Young's modulus monotonically increases with PEDOT:PSS content, reaching 1.63 GPa at 50%. SEM imaging and XRD analysis allows correlation of these evolutions to substantial morphological changes in the PEDOT:PSS/PVA microstructure. When combined with a previously published electrical characterization study, the current work suggests that a PEDOT:PSS/PVA polymer blend with 30-40 wt% of PEDOT:PSS provides the best trade-off of conductivity and ductility. For non free-standing films, higher PEDOT:PSS fractions (70%) might be preferable. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ELSEVIER SCIENCE SA ko
dc.subject Bimodal behavior ko
dc.subject Electrical and mechanical properties ko
dc.subject Electrical characterization ko
dc.subject Fracture strain ko
dc.subject Freestanding films ko
dc.subject Mechanical characterizations ko
dc.subject Morphological changes ko
dc.subject PEDOT ko
dc.subject PEDOT:PSS ko
dc.subject PEDT ko
dc.subject Plastic deformation behavior ko
dc.subject Poly(3 ,4-ethylenedioxythiophene) ko
dc.subject Poly(styrene sulfonate) ko
dc.subject PVA ko
dc.subject SEM imaging ko
dc.subject Uniaxial tensile test ko
dc.subject Weight fractions ko
dc.subject XRD analysis ko
dc.subject Young's Modulus ko
dc.title Mechanical characterizations of cast Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)/Polyvinyl Alcohol thin films ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-80055080501 ko
dc.identifier.wosid 000297878100013 ko
dc.type.rims ART ko
dc.description.scopustc 14 * 2014-07-12 *
dc.identifier.doi 10.1016/j.synthmet.2011.08.031 ko
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