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Open AccessEditor’s ChoiceArticle

Conductive Bicomponent Fibers Containing Polyaniline Produced via Side-by-Side Electrospinning

by 1, 2 and 2,3,*
1
School of Mechanical and Materials Engineering; Washington State University, Pullman, WA 99164, USA
2
Composite Materials and Engineering Center; Washington State University, Pullman, WA 99164, USA
3
Department of Apparel, Merchandising, Design and Textiles; Washington State University, Pullman, WA 99164, USA
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(6), 954; https://doi.org/10.3390/polym11060954
Received: 1 May 2019 / Revised: 28 May 2019 / Accepted: 30 May 2019 / Published: 1 June 2019
(This article belongs to the Special Issue Electrospun Nanofibers: Theory and Its Applications)
In this study, using a barbed Y-connector as the spinneret, camphoric acid (CSA) doped polyaniline (PANI) and polyethylene oxide (PEO) were electrospun into side-by-side bicomponent fibers. Fiber mats obtained from this side-by-side spinneret were compared with those mats electrospun from blended PEO and PANI in terms of fiber morphology, electrical conductivity, thermal stability, mechanical properties, and relative resistivity under tensile strain. The influence of different content ratio of insulating PEO (3/4/5 w/v% to solvent) and conductive PANI-CSA (1.5/2.5/3.5 w/v% to solvent) on the abovementioned properties was studied as well. Results showed that this side-by-side spinning was capable of overcoming the poor spinnability of PANI to produce fibers with PEO carrying PANI on the surface of the bicomponent fibers, which demonstrated higher electrical conductivity than blends. Although the addition of PANI deteriorated mechanical properties for both side-by-side and blended fibers when compared to the pure PEO fibers, the side-by-side fibers showed much better fiber strength and elongation than blends. In addition, the superior ductility and decent relative electrical resistivity of the side-by-side fibers imparted them great potential for flexible sensor applications. View Full-Text
Keywords: polyaniline; electrospun nanofiber; conductive; side-by-side fiber polyaniline; electrospun nanofiber; conductive; side-by-side fiber
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MDPI and ACS Style

Liu, W.; Zhang, J.; Liu, H. Conductive Bicomponent Fibers Containing Polyaniline Produced via Side-by-Side Electrospinning. Polymers 2019, 11, 954.

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