The inclusion complexes of β-cyclodextrin with different dinitrocompounds like 2,4-dinitrophenol, 2,4-dinitroaniline, 2,6-dinitroaniline and 2,4-dinitrobenzoic acid appears the UV absorption bands in different wavelength region below 400 nm, a combination of these dinitro aromatic compounds of inclusion complexes can improve the UV protection properties of ball point pen ink against photo degradation. The formation of inclusion complexes were characterized by FT-IR, 1H NMR and 2D ROESY NMR spectroscopy. The UV protecting properties of these inclusion complexes were calculated their sun protection factor was discussed. The stability of the ballpoint pen ink has been confirmed by UV–visible spectroscopic method.
不同二
硝基化合物如2,4-
二硝基苯酚、
2,4-二硝基苯胺、
2,6-二硝基苯胺和
2,4-二硝基苯甲酸与β-
环糊精形成的包合物在低于400纳米波长区域出现了紫外吸收带,这些二硝基芳香化合物的包合物组合能提升圆珠笔墨
水对光降解的紫外防护性能。包合物的形成通过傅里叶变换红外光谱(FT-IR)、核磁共振氢谱(1H NMR)和二维旋转坐标系核磁共振谱(2D ROESY NMR)进行了表征。这些包合物的紫外防护性能通过计算其防晒指数并进行了讨论。通过紫外-可见光谱方法验证了圆珠笔墨
水的稳定性。