Synthesis of a Novel Disperse Reactive Dye Involving a Versatile Bridge Group for the Sustainable Coloration of Natural Fibers in Supercritical Carbon Dioxide
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Synthesis of a Novel Disperse Reactive Dye Involvi
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- DOI: 10.1002/advs.201801368
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FULL PAPER 1801368 (1 of 14) © 2018 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim www.advancedscience.com Synthesis of a Novel Disperse Reactive Dye Involving a Versatile Bridge Group for the Sustainable Coloration of Natural Fibers in Supercritical Carbon Dioxide Yue Fan, Yan-Qin Zhang, Kai Yan, and Jia-Jie Long* Y. Fan, Y.-Q. Zhang, K. Yan, Prof. J.-J. Long College of Textile and Clothing Engineering Soochow University Suzhou 215123, China E-mail: longjiajie@suda.edu.cn The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/advs.201801368. DOI: 10.1002/advs.201801368 By taking advantage of the powerful dissolving behaviors of supercritical sys- tems, Schollmeyer and co-workers [2] first evaluated such systems as dissolving and transport media for hydrophobic dyes to determine the potential of these systems, especially supercritical carbon dioxide, for textile dyeing. Moreover, to date, super- critical carbon dioxide can be readily employed as a dyeing medium in practice to completely avoid water consumption and wastewater discharge, which truly embodies the concept of green chem- istry and sustainable alternatives with numerous advantages over conventional aqueous coloration methodologies. [3–8] However, to date, there is still a chal- lenge in the coloration of natural fibers by utilizing supercritical carbon dioxide due to the unique properties of the supercrit- ical fluid and the highly hydrophilic char- acteristics of the natural substrate. [3,5,6,9] Fortunately, as demonstrated from our previous work as well as other researchers’ results, [3,5–10] the application of a special kind of dye, namely, disperse reactive dyes, can meet most of the demands of both the supercritical medium and natural substrates during coloration via supercritical carbon dioxide. This method has attracted increasing attention in recent years not only due to its environmentally friendly advantages but also due to its facile and convenient implementation in prac- tice. [9,11] Therefore, the appropriate design and synthesis of the chemical and conformation structures has become very impor- tant for developing a suitable and powerful disperse reactive dye for the coloration of different natural fibers in supercritical carbon dioxide fluid. Moreover, the supply of this kind of spe- cial dye is also very limited and not often found in the commer- cial market, although the demand from customers is quickly increasing with the rapid development of supercritical colora- tion technology. [2,10–13] Theoretically, during the design and synthesis of the chem- ical and conformation structures of an individual disperse reactive dye, the bridge group or linking group between the chromophoric matrix and reactive group(s) also plays a cru- cial role in the coloration properties of dye uptake, adsorp- tion, penetration, reactivity, fixation, and stability during application. [14] Consequently, the appropriate selection of a Download 1.01 Mb. Do'stlaringiz bilan baham: 
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