TY - JOUR
T1 - The synthesis of polymeric dyes based on waterborne polyurethane
T2 - A reaction kinetics study using UV absorption spectroscopy
AU - Zhu, Jun
AU - Li, Jie
AU - Sang, Chao
AU - Luo, Yunjun
N1 - Publisher Copyright:
© 2020 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
PY - 2020/2/21
Y1 - 2020/2/21
N2 - Waterborne polyurethane (WPU) based polymeric dyes with anthraquinone chromophores were developed to realize coloring textiles and improve color fastness. The preparation of polymeric dyes through the reaction of 1,4-diamino-2,3-diphenoxyanthraquinone (DV26) and NCO-terminated prepolymer was monitored via UV absorption spectroscopy. With the progress of the reaction, the intensity of the absorption peak of the primary amine group at 586 nm decreased as a function of reaction time. Thus, the conversion of DV26 at different times and the reaction end point could be determined. The reaction mechanism corresponded to an autocatalytic reaction equation, basically. In addition, the results of performance tests showed that the polymeric dyes exhibited good emulsion stability, ultra-low migration percentages, good water resistance and excellent thermal stability. Moreover, the application properties of DWPU on coated polyester fabrics were satisfactory.
AB - Waterborne polyurethane (WPU) based polymeric dyes with anthraquinone chromophores were developed to realize coloring textiles and improve color fastness. The preparation of polymeric dyes through the reaction of 1,4-diamino-2,3-diphenoxyanthraquinone (DV26) and NCO-terminated prepolymer was monitored via UV absorption spectroscopy. With the progress of the reaction, the intensity of the absorption peak of the primary amine group at 586 nm decreased as a function of reaction time. Thus, the conversion of DV26 at different times and the reaction end point could be determined. The reaction mechanism corresponded to an autocatalytic reaction equation, basically. In addition, the results of performance tests showed that the polymeric dyes exhibited good emulsion stability, ultra-low migration percentages, good water resistance and excellent thermal stability. Moreover, the application properties of DWPU on coated polyester fabrics were satisfactory.
UR - http://www.scopus.com/inward/record.url?scp=85082991996&partnerID=8YFLogxK
U2 - 10.1039/c9nj05490a
DO - 10.1039/c9nj05490a
M3 - Article
AN - SCOPUS:85082991996
SN - 1144-0546
VL - 44
SP - 2930
EP - 2940
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 7
ER -