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Open AccessArticle

Luminescent Cellulose Fibers Modified with Poly((9-Carbazolyl)Methylthiirane)

1
Centre of Papermaking and Printing, Lodz University of Technology, Wólczańska 223, 90-924 Łódź, Poland
2
Department of Mechanical Engineering, Informatics and Chemistry of Polymer Materials, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
3
Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
4
Institute of Sport Science, The Jerzy Kukuczka Academy of Physical Education, Mikołowska 72A, 40-065 Katowice, Poland
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(10), 2296; https://doi.org/10.3390/polym12102296
Received: 7 September 2020 / Revised: 5 October 2020 / Accepted: 6 October 2020 / Published: 7 October 2020
(This article belongs to the Special Issue Smart Textile)
This article presents the results of research related to the development of cellulose man-made fibers with luminescent properties. The fibers were obtained from regenerated cellulose with the use of the N-Methylmorpholine-N-Oxide (NMMO) method for lyocell (Tencel) fiber formation. The method is named after the cellulose solvent (NMMO) used to obtain the spinning solution. Fibers are formed by the dry–wet spinning method. Due to the characteristic of the lyocell process, the fibers were easily modified to achieve luminescent properties with star-shaped organic compound poly((9-carbazolyl)methylthiirane) (KMT). Fibers were examined on their mechanical parameters with the use of Zwick Z2.5/TN1S tensile testing machine, and the results show the influence of the KMT concentration in the fiber matrix on mechanical parameters of the fibers. The study also attempted to determine the concentration of the modifier in the fibers with the use of UV-VIS Spectrofluorometer JASCO. The luminescent properties of fibers were estimated as well, using Jobin–Yvon spectrofluorometer FLUOROMAX–4, and the results are very promising as the fibers emit blue light in the range of visible light spectrum even for small concentrations of KMT (about 0.1 wt.%). View Full-Text
Keywords: lyocell fibers; luminescent fibers; cellulose fibers; security fibers lyocell fibers; luminescent fibers; cellulose fibers; security fibers
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MDPI and ACS Style

Erdman, A.; Kulpinski, P.; Gabor, J.; Stanula, A.; Swinarew, A.S. Luminescent Cellulose Fibers Modified with Poly((9-Carbazolyl)Methylthiirane). Polymers 2020, 12, 2296.

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