Open AccessNovel and Sustainable Colorants Developed via Incorporating Azo Chromophores into Dopamine Molecules
Author(s) -
Suju Fan,
Yintung Lam,
Liang He,
John Haozhong Xin
Publication year - 2022
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c07084
Subject(s) - chromophore , colored , polymerization , textile , chemical engineering , materials science , environmentally friendly , molecule , chemistry , polymer chemistry , combinatorial chemistry , photochemistry , organic chemistry , polymer , composite material , ecology , engineering , biology
Inspired by the application of dopamine as an "anchor" and UV absorber, novel sustainable colorants with biscatecholic structure were synthesized through a simple incorporation of simple azo chromophores with dopamine. Their structures were confirmed using MS and NMR analyses, and their application on textile materials was investigated. Compared to the simple azo chromophores with almost no coloring ability on fabrics, the biscatecholic colorants could color different fabrics effectively, mainly through self-polymerization only in the presence of a trace amount of organic base at room temperature, which is environmentally friendly in terms of saving resources and alleviating chemical pollution. Meanwhile, the UV resistance of colored fabrics was enhanced significantly, showing the advantage of protecting wearers from UV damage.