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Strain-Responsive Polyurethane/PEDOT:PSS Elastomeric Composite Fibers with High Electrical Conductivity

Lookup NU author(s): Dr Shayan SeyedinORCiD

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Abstract

It is a challenge to retain the high stretchability of an elastomer when used in polymer composites. Likewise, the high conductivity of organic conductors is typically compromised when used as filler in composite systems. Here, it is possible to achieve elastomeric fiber composites with high electrical conductivity at relatively low loading of the conductor and, more importantly, to attain mechanical properties that are useful in strain‐sensing applications. The preparation of homogenous composite formulations from poly­urethane (PU) and poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) that are also processable by fiber wet‐spinning techniques are systematically evaluated. With increasing PEDOT:PSS loading in the fiber composites, the Young's modulus increases exponentially and the yield stress increases linearly. A model describing the effects of the reversible and irreversible deformations as a result of the re‐arrangement of PEDOT:PSS filler networks within PU and how this relates to the electromechanical properties of the fibers during the tensile and cyclic stretching is presented.

Publication metadata

Author(s): Seyedin MZ, Razal JM, Innis PC, Wallace GG

Publication type: Article

Publication status: Published

Journal: Advanced Functional Materials

Year: 2014

Volume: 24

Issue: 20

Pages: 2957–2966

Print publication date: 28/05/2014

Online publication date: 18/02/2014

Acceptance date: 16/12/2013

ISSN (print): 1616-301X

ISSN (electronic): 1616-3028

Publisher: Wiley-VCH Verlag

URL: https://doi.org/10.1002/adfm.201303905

DOI: 10.1002/adfm.201303905

Notes: Authored as Mohammad Ziabari Seyedin

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