Abstract
Electrospinning is a powerful and promising technique in production of nano-materials namely nano-fibers. Nano-sized materials show properties apart from their macroscopic/bulk sizes, and enable us to fabricate materials that could be designed as functional composites of different kinds of materials. We electrospun to form core-sheath nanofibers composed of polyacrylonitrile (PAN) sheath with a core of widely used nematic liquid crystals (6CB and 8CB) by blending them in various ratios. The nano-fibers were fabricated in different conditions regarding the feeding rate and electrospinning voltage. The physical properties were investigated. Optical properties revealed the birefringence of the nano-fibers which is an important property for the light modulating devices. The thicknesses of the nano-fibers were determined from SEM images and the distribution of the thickness was shown in a histogram. The thermal studies put forward the N–I transition temperatures of the liquid crystal/PAN nano-fibers, that the temperatures were in compliance with that of liquid crystals. It can control light modulation by tuning such liquid crystal/fiber material known to be usable in optoelectronics.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
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The authors acknowledge the technical support of The Center of Research Laboratories and Molecular Nano Materials Laboratory which are incorporated with Mugla Sitki Kocman University.
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ÇK and AEM designed the research and analyzed the data; AEM, ÇK, ÇEDD and MP performed the research; AEM wrote the paper.
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Koçak, Ç., Mamuk, A.E., Demirci Dönmez, Ç.E. et al. Electrospun fibers of liquid crystal mixtures. J Mater Sci: Mater Electron 33, 15209–15221 (2022). https://doi.org/10.1007/s10854-022-08439-8
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DOI: https://doi.org/10.1007/s10854-022-08439-8