摘要
首先将透明质酸(HA)醛基化得到双醛修饰的HA(AHA),接着通过AHA与席夫碱反应,将多巴胺(DA)接枝到HA上,得到DAHA,最后通过DAHA对头发进行预处理,加强聚多巴胺(PDA)与头发之间的相互作用。利用傅里叶变换红外光谱仪(FT-IR)、紫外-可见分光光度计(UV-Vis)、核磁共振氢谱仪(^(1)H-NMR)、扫描电镜(SEM)、单纤维强度测试仪、色差仪等对DAHA的性质以及染色性能进行了一系列表征。结果表明:DA成功接枝到了HA上,并且数均分子量为0.2×10^(4)-1.0×10^(4)的DAHA接枝率为34%。经过DAHA辅助染色的头发,表面PDA纳米粒子分散更加均匀,同时具备更好的耐洗涤性能。
Most of the traditional permanent hair dyes containing aniline molecules have the risk of carcinogenicity and sensitization.Since polydopamine has a similar molecular structure to eumelanin and good biocompatibility,the use of polydopamine in hair dyeing has become a hot research topic.However,due to the hydrophobic structure of the hair surface,the adhesion of dopamine in situ deposition on the hair surface is weak.Here,by taking advantage of the effect of hyaluronic acid(HA)to hair,dopamine(DA)was grafted onto HA via Schiff base reaction to strengthen the interactions between polydopamine and hair.The chemical structure of DA grafted hyaluronic acid(DAHA)was confirmed by Fourier Transform Infrared Spectrometer(FT-IR),Ultraviolet-Visible(UV-Vis)spectrophotometer,Proton Nuclear Magnetic Resonance(1HNMR).The dyeing properties assisted by DAHA were characterized by Scanning Electron Microscope(SEM),single fiber strength tester and colorimeter.Results show that DA has been successfully grafted onto HA,and the grafting ratio for HA with a number average molecular weight of 0.2×10^(4)—1.0×10^(4) was 34%.Compared with the hair samples dyeing without DAHA,the hair pretreated with DAHA has better color fastness after 30 washes.Moreover,with DAHA pretreatment,the tensile strength of hair improves,and the improvement rate is about 7.4%.SEM photos demonstrate that the polydopamine nanoparticles on the surface of hair dyed with DAHA were more uniform than those without DAHA.
作者
郑宸
黄晶
李婷
东为富
ZHENG Chen;HUANG Jing;LI Ting;DONG Weifu(Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,Jiangsu,China)
出处
《功能高分子学报》
CAS
CSCD
北大核心
2022年第6期560-565,共6页
Journal of Functional Polymers
基金
国家自然科学基金(21975108)。
关键词
聚多巴胺
透明质酸
席夫碱反应
染发
护发
polydopamine
hyaluronic acid
Schiff base reaction
hair dye
hair care
