Design Synthesis And Performance Research Of Some Function Gels

Self-assembly is a most practical technique to integrate all kinds of micro materials into macroscopic materials with interesting properties. These self-assembled super structures which have been endowed with various practical applications exhibit novel collective physiochemical properties. As a kind of nove self-assembled materials, gels are the products of the gelation of suitable organic solvent or water. Gels have the ability to organize into orderly 3D network structure. In this paper, we design and synthese the benzimidazole/benzothiazole amide low molecule organogel, PEI/GO hydrogel and the PEI/RGO nanohybrid hydrogel including Ag nanoparticles. We make a comprehensive study of the performance, microstructure and application of the gels.The gelation behaviors of benzothiazole/benzimidazole imide derivatives in 22 solvents were tested. It indicated that the alkyl substituent chains and headgroups of benzimidazole/benzothiazole imide derivatives played a crucial role in the gelation behavior. More alkyl chains in molecular skeletons have an advantage of the gelation of organic solvents. By the spectral analysis, we know that there existed various H-bond formations between imide functional groups and hydrophobic force of alkyl substituent chains, which is the main reason for the different morphology of gels.In addition, PEI/GO hydrogel of fold, porous nanostructures was obtained through the self-assembly of graphene oxide and polyethylene imine. The research of adsorption performance of hydrogel shows that the PEI/GO hydrogel has good adsorption effect for methylene blue and rhodamine B, and the adsorption effect for methylene blue is more obvious. Based on the PEI/GO hydrogel, PEI/RGO/Ag nanocomposite hydrogel was prepared successfully. The morphology of PEI/RGO/Ag hydrogel is similar to the PEI/GO hydrogel. Silver nanoparticles are homogeneously and uniformly fabricated on the surface of the RGO nanosheets. Loading of silver nanoparticles improves the thermal stability of the material to a certain extent, also exhibited high degradation rates for both Rh B and MB. The study shows that the illumination plays a vital role in the process of catalytic degradation of organic dye in the presence of silver nanoparticles. The research of degradation dynamics shows that the degradation of hydrogel for organic dye MB and Rh B belongs to the chemical process.