Design Preparation And Performance Research Of Some Composite LB Films And Two-component Gels

Self-assembly is a technique in which the composition of a different structure spontaneously forms an ordered structure.The physical and chemical properties of the materials synthesized using this technology are very good and are widely used in nanobiomaterials and adsorbent materials.Molecular self-assembly at the gas-liquid interface to form an ordered molecular film can be composite nano-coating,optical nano-materials,sensor sensitive film.In this paper,LB composites were used to synthesize composite films at the gas/liquid interface,and self-assembled supramolecular gels of twocomponent were designed and synthesized.The effective synthesis and self-assembly of graphene oxide(GO)nanocomposites are of key importance for abroad range of nanomaterial applications.In this work,a onestep chemical strategy is presented to synthesize stable GO-polymer Langmuir composite films by interfacial thiol-ene photopolymerization at room temperature,without use of any crosslinking agents and stabilizing agents.It is discovered that photopolymerization reaction between thiol groups modified GO sheets and ene in polymer molecules is critically responsible for the formation of the composite Langmuir films.Secondly,the experiment was carried out on the ordered assembly of fluorinecontaining aromatic acid(CF)at the air / water interface.The fluorine-containing aromatic acid was able to coordinate with the metal ions in the air / water interface,Metal ions into the composite membrane,the formation of the composite membrane morphology was affected by the metal ions and surface pressure.The metal ions have a synergistic effect on the spatial structure of the organic small molecules CF in the composite membrane.In addition,the experiment also designed the supramolecular two-component gel with two kinds of small molecules containing fluorine aromatic acid and glutamic acid amino derivative as raw materials.The gel nanostructures and adsorption capacity were characterized and tested respectively.The experimental results show that the designed two-component gel has good gelability due to the interaction between various weak molecules in a single organic solvent or in an ethanol / water mixed solvent.The gel also has a good adsorption effect on aqueous solutions containing model dyes MB and RhB.The research work for the study of supramolecular gel nanomaterials has provided a valuable insight into the idea and the adsorption of dye wastewater.