The assembly of rotaxane-like dye/cyclodextrin/surface complexes on aluminium trihydroxide or goethite
作者:Rachel J. Cooper、Philip J. Camp、Ross J. Gordon、David K. Henderson、Dorothy C. R. Henry、Hamish McNab、Sonali S. De Silva、Daniel Tackley、Peter A. Tasker、Paul Wight
DOI:10.1039/b518260c
日期:——
Simple azo-dyes carrying phosphonic acid and arsonic acid substituents such as 4-(4-hydroxyphenyl azo)phenylphosphonic acid (5) and 4-(4-hydroxyphenylazo)phenylarsonic acid (6) bind more strongly to high surface area oxides such as aluminium trihydroxide and goethite than their carboxylic and sulfonic acid analogues and the phosphonate-functionalized dyes have been shown to have greater humidity fastness
带有膦酸和砷酸取代基的简单偶氮染料,例如4-(4-羟基苯基偶氮)苯基膦酸(5)和4-(4-羟基苯基偶氮)苯基ar磺酸(6)与高表面积氧化物(如铝)结合更牢固三羧酸盐和针铁矿要比它们的羧酸和磺酸类似物和膦酸酯官能化的染料具有更高的耐湿坚牢度。吸附等温线测量为三元染料/环糊精/表面复合物的形成提供了证据。当以包含α-环糊精的油墨配方印刷到氧化铝涂层纸上时,形成这种三元络合物的染料显示出更高的耐光牢度。