The Synthesis Of Amphiphiles Derived From1,2-cyclohexanediamine And1,2-diphenylethylenediamine And Their Application In The Preparation Of Nano-material

The1,2-cyclohexanediamine and1,2-diphenylethylenediamine derivatives can be used as templates to prepare titanium, tantalum, vanadium, silica and conductive polymer nano-materials. These nano-materials have been widely used in electronics, optically functional materials, chiral separation, advanced catalysts and invisible coating materials. Hence, they have attracted considerable attention in many fields. In this work, chiral anionic amphiphiles derived from1,2-cyclohexanediamine and1,2-diphenylethylenediamine were synthesized according to literatures. Their self-assembly behaviors were studied using circular dichroism spectrum and field-emission scanning electron microscopy. Radial silica nano-materials were obtained using the self-assemblies of1,2-diphenylethylenediamine anionic derivatives as the template and3-aminopropyltriethoxysilane (APTMS) as the co-structure-directing agent through a sol-gel transcription method. The morphologies of the silicas were controllable by tunning the concentration, reaction temperature, pH value and volume ratio of the solvents. By changing the pH value of the reaction mixtures, spiral hollow nanotubes, spiral hollow spheres and solid spheres were obtained. Moreover, conducted poly(pyrrole) nanofibers were synthesized by a chemical oxidative polymerization method using1,2-cyclohexanediamine derivatives as the template. The morphology of the poly(pyrrole) nanostructure was also sensitive to the volume ratio of solvents, reaction temperature and concentration. A series of nanophere and hollow nanofibers were obtained. Meanwhile, the length and diameter of poly(pyrrole) nanostructure were also tunable.