Morphological Evolution of Self-Assembled Sodium Dodecyl Sulfate/Dodecyltrimethylammonium Bromide@Epoxy-β-Cyclodextrin Supramolecular Aggregates Induced by Temperature  

作　　者：Qingran Meng Wenwen Xu Zuobing Xiao Qinfei Ke Xingran Kou 

机构地区：[1]Key Laboratory of Textile Science&Technology,Ministry of Education,College of Textiles,Donghua University,Shanghai,201620,China [2]Collaborative Innovation Center of Fragrance Flavor and Cosmetics,School of Perfume and Aroma Technology(Shanghai Research Institute of Fragrance&Flavour Industry),Shanghai Institute of Technology,Shanghai,China

出　　处：《Journal of Renewable Materials》2024年第4期629-641,共13页可再生材料杂志（英文）

基　　金：China Postdoctoral Science Foundation(2020M681125);National Natural Science Foundation of China(32272254,31901618);Collaborative Innovation Center of Fragrance Flavour and Cosmetics.

摘　　要：Bio-based cyclodextrins(CDs)are a common research object in supramolecular chemistry.The special cavity structure of CDs can form supramolecular self-assemblies such as vesicles and microcrystals through weak interaction with guest molecules.The different forms of supramolecular self-assemblies can be transformed into each other under certain conditions.The regulation of supramolecular self-assembly is not only helpful to understand the self-assembly principle,but also beneficial to its application.In the present study,the self-assembly behavior of epoxy-β-cyclodextrin(EP-β-CD)and mixed anionic and cationic surfactant system(sodium dodecyl sulfate/dodecyltrimethylammonium bromide,SDS/DTAB)in aqueous solution was studied.Morphological and particle size characterization found that the SDS/DTAB@EP-β-CD complex,as the basic building unit,self-assembled into worm-like micelles at lower temperatures and vesicles at higher temperatures.Nuclear magnetic resonance(NMR)and Fourier transform infrared spectroscopy(FT-IR)analysis revealed that the driving force for the formation of vesicles and worm-like micelles was the hydrogen bonds between EP-β-CD molecules,while water molecules played an important role in promoting vesicle formation between SDS/DTAB@EP-β-CD units.Herein,the mechanism of the morphologic transformation of SDS/DTAB@EP-β-CD supramolecular aggregates induced by temperature was elucidated by exploring the self-assembly process,which may provide an excellent basis for the development of delivery carriers.

关 键 词：Epoxy-β-cyclodextrin SDS/DTAB SELF-ASSEMBLY TEMPERATURE morphological evolution 

分 类 号：O62[理学—有机化学]