Study On The Properties Of Neutral Red Pre-micells Self-Assembly Syste

Materials have a revolutionary leading role in people's production and life,so the research of materials is getting hotter.In particular,self-assembled materials and intelligent materials are hot spots in recent years.Self-assembly avoids complex organic synthesis.Intelligent materials have a certain perception,reaction and self-regulation effect on the environment.These are not intense,slow and gentle reaction,closer to the physiological process of life,with great research prospects and value.Pre-micelles and micelles are also the part of self-assembly,but few studies have been done on the field of pre-micelles,especially in China.Pre-micelles as a state before the formation of micelles,witch is sensitive to the changes in the environment and to respond,the performance of pre-micelles and micelles are very different,so we have many things to explored.In this paper,we focus on the self-assembly of fluorescence reagents and surfactants at different concentrations,focusing on self-assembly and intelligent response in pre-micellar concentration range.High-resolution transmission electron microscopy,UV-Vis absorption spectroscopy,fluorescence emission spectroscopy,fluorescence lifetime,electrochemical cyclic voltammetry was used to investigate the properties of the morphology of fluorescence reagent neutral red mixed with the surfactant sodium dodecyl sulfonate,sodium dodecyl benzene sulfonate,spectrally the properties and the ability to respond to the external environment,then we get a series of related conclusions.Specific research work includes the following aspects:1?In this paper,the neutral red in the alkaline conditions under a slightly higher concentration range,through the UV absorption spectrum,fluorescence spectroscopy,ultra-high resolution transmission electron microscopy to explore its self-assembly behavior.Neutral red in the neutral and alkaline environment,a large number of neutral body can be formed which hydrophobic is very strong,so the ability to self-aggregation and assembly greatly enhanced with the ?-? accumulation,hydrophobic and other intermolecular forces and heating can not make this assembly reversed,therefore the ability of neutral red to response acid and alkali response is very sensitive in the alkaline environment and its self-assembly ability is very strong.2?In this paper,the self-assembly system of neutral red and sodium dodecylsulfonate was studied,and different morphologies could form different morphologies: precipitation,vesicles and micelles.The effects of factors such as proportion and concentration and the spectral performance of the system were investigated.The microstructure of the self-assembly system was observed by ultra-high resolution transmission electron microscopy.The redox performance of the system was characterized by cyclic voltammetry.We also investigated the self-assembly system responds to temperature,pH and metal ions.3?In this paper,the self-assembly system of neutral red and sodium dodecyl benzene sulfonate was studied.The different morphologies could form different morphologies: precipitation,fiber and micelles.Compared with neutral red and sodium dodecyl sulfonate,the self-assembly of neutral red and sodium dodecylbenzenesulfonate was mainly induced by hydrophobic interaction,?-? stacking and electrostatic effect,which has a strong binding force compared with neutral red and sodium dodecyl sulphonate,so the system is more stable.The effects of factors such as ratio?concentration and the spectral properties of the system were also investigated.The microstructure of the self-assembled system was observed by ultra-high resolution transmission electron microscopy.The redox performance of the system was studied by cyclic voltammetry.We also studied the self-assembly system response to temperature,pH and metal ions.4?In this paper,the formation of the gel of neutral red and sodium dodecyl sulfonate was investigated.The optimum conditions for the formation of this gel system were investigated,such as concentration ratio,pH,temperature,salt,surfactant type and so on.The mechanism was discussed,that is,the non-permanent thermoreversible gel.We study the gel material to lay a certain theoretical basis to investigate the production of gel and intelligent materials.