Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (2): 137-145.DOI: 10.11944/j.issn.1000-0518.2019.02.180121

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Endowing Hydrochromism to Fluoranes by Modifying Their Switch Sites and Their Applications in Water-Jet Printing

JU Leab,ZHANG Tingcd,QIN Tianyoucd,SHENG Land*(),ZHANG Sean Xiao-anabcd*()   

  1. aDepartment of Chemistry and Pharmacy,Zhuhai College of Jilin University,Zhuhai,Guangdong 519041,China
    bCollege of Life Science,Jilin University,Changchun 130012,China
    cState Key Lab of Supramolecular Structure and Materials,College of Chemistry,Jilin University,Changchun 130012,China
    dCollege of Chemistry,Jilin University,Changchun 130012,China
  • Received:2018-04-18 Published:2019-02-01 Online:2019-01-31
  • Contact: SHENG Lan,ZHANG Sean Xiao-an
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.51603085, No.21572079)

Abstract:

The concept of water-jet printing has made a great contribution to the reduction of environmental pollution and resource consumption. However, there are few hydrochromic dyes and they are difficult to develop. Therefore, in order to realize the adjustment of acidochromic dyes to hydrochromic dyes, we adjust the dynamic balance of the switch-ring in molecules by changing the switch units of fluoranes. Fluoranes are synthesized directly from commercial raw materials in two steps and have a high molar absorption coefficient up to 1×105. The reflectivity changes 50% before and after writing with water, which makes it possible to apply widely in water-jet printing.

Key words: hydrochromic, rhodamine, water-jet printing, rewritable