Article (Scientific journals)
Multifunctional responsive fibers produced by dual liquid crystal core electrospinning
Kye, Yoomee; Kim, Changsoon; Lagerwall, Jan
2015In Journal of Materials Chemistry C, 3, p. 8979 - 8985
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Abstract :
[en] We demonstrate that coaxial electrospinning with more than one core channel, each containing a different type of liquid crystal, can be used to produce multifunctional fibers in a one-step process. They respond to more than one stimulus or with multiple threshold values, and the individual cores may feature different physical properties such as iridescent reflection in one core and birefringence in another. In order to ensure good fiber morphology and intact, unmixed and well separated cores, two important precautions must be taken. First, the fibers should not be collected on a hydrophilic substrate, as this will lead to severe fiber deformation and core mixing after collection, as a result of capillary forces from the water that condenses on the fiber during spinning. Second, the addition of surfactants to the polymer solution should be avoided, although it may appear beneficial for the spinning process as it reduces surface tension and increases conductivity. This is because the surfactant enters the liquid crystal core, possibly together with water in the form of inverse micelles, seriously degrading the performance of the liquid crystal.
Disciplines :
Chemistry
Author, co-author :
Kye, Yoomee
Kim, Changsoon
Lagerwall, Jan  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
External co-authors :
yes
Language :
English
Title :
Multifunctional responsive fibers produced by dual liquid crystal core electrospinning
Publication date :
2015
Journal title :
Journal of Materials Chemistry C
ISSN :
2050-7534
Publisher :
Royal Society of Chemistry
Volume :
3
Pages :
8979 - 8985
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
H2020 - 648763 - INTERACT - Intelligent Non-woven Textiles and Elastomeric Responsive materials by Advancing liquid Crystal Technology
Funders :
Seoul National University (Foreign Faculty Grant 490-20110040)
CE - Commission Européenne [BE]
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since 16 November 2015

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