摘要
为探索没食子酸对胡桃醌的媒染机理,本实验通过比较在没食子酸存在的条件下,胡桃醌在头发上的染色效果和吸附性能,并利用量子化学计算没食子酸对胡桃醌和头发之间相互作用能的影响。结果表明,没食子酸可以使胡桃醌染出的发色更加鲜亮并且拥有更强的色牢度;同时没食子酸还可以改变胡桃醌的吸附行为,增加胡桃醌的吸附总量;在分子水平上,没食子酸可以充当桥梁连接头发角蛋白和胡桃醌,使得整体具备的能量更低,所形成的氢键更加稳定。说明没食子酸可以充当媒染剂增强胡桃醌的染色性能,本研究为天然媒染剂的选取提供了理论基础。
In this study,the staining effect and adsorption performance of the juglone on hair were compared in the presence of gallic acid.The interaction energy between juglone and hair keratin was calculated by constructing molecular models,and the effect of gallic acid on it was studied.The aim is to explore the mordant mechanism of gallic acid on juglone.The experimental results showed that gallic acid could make the hair color brighter and have stronger color fastness.At the same time,gallic acid can also change the adsorption behavior of juglone,increase the total amount of adsorption.Gallic acid act as a bridge linking hair keratin and juglone,making the overall energy lower and forming many more stable hydrogen bonds.It was indicated that gallic acid can act as a mordant to enhance the dyeing performance of juglone.This study provided a theoretical basis for the selection of natural mordants.
作者
王建国
朱正
蒙龙伟
岐冰
庞子宁
于白阳
陈声泰
高海燕
WANG Jian-guo;ZHU Zheng;MENG Long-wei;QI Bing;PANG Zi-ning;YU Bai-yang;CHEN Sheng-tai;GAO Hai-yan(School of Chemical and Material Engineering,JiangnanUniversity,Wuxi 214122,China)
出处
《天然产物研究与开发》
CAS
CSCD
北大核心
2019年第6期1082-1090,共9页
Natural Product Research and Development
基金
江南大学大学生创新实验项目(2018256Y)
江南大学教师卓越工程项目(JG2017134)
关键词
没食子酸
胡桃醌
色牢度
吸附
媒染
gallic acid
juglone
fastness
adsorption
mordant
