4results about How to "Clear molecular structure" patented technology

The invention discloses a photoresist composition and a photoetching patterning application. The invention provides a multi-component elastomer photoresist composition with high elastic modulus and high forming capability and a method for forming a photoetching pattern by using the composition. The photoresist is composed of a polyene functionalized precursor, a mercaptan cross-linking agent and a bifuran cross-linking agent, a cross-linked network is constructed through a chemical reaction initiated by ultraviolet light and high temperature, and the solubility difference between an exposure area and a non-exposure area is realized, so that a micro-nano pattern with low defects, high contrast and high strength is obtained in development. The method has huge potential in the technical field of high-precision photoetching.

The invention discloses a phosphorus-doped double-vacancy heterostructure material, a preparation method and application, and belongs to the technical field of electrocatalysis, polyacid is used as a precursor to prepare P-MoS2 rich in sulfur vacancies on carbon cloth through hydrothermal treatment, then part of MoS2 is converted into MoO2 in situ through heat treatment, and a P-MoS2 / MoO2 heterostructure is constructed. Abundant oxygen vacancies are generated in the thermal conversion process. Rich vacancy defects and heterogeneous interfaces in the constructed catalyst promote electron transfer and adsorption of active substances, charge transfer kinetics is improved, and more reaction active sites are provided for water cracking; the vertically crossed nanosheet network on the carbon cloth is beneficial to charge transport, reactant permeation and gas diffusion. Various components in the catalyst synergistically promote the water electrolysis process, and a novel advanced, economical, efficient and stable electrode material is provided for catalytic application.

The application discloses a fullerene nanomaterial capable of targeting a mannose receptor and a preparation method thereof. The application connects a mannose molecule to a fullerene through an amidation reaction to prepare a fullerene-mannose derivative material with a determined molecular structure. The mannose group targets a mannose receptor overexpressed by a macrophage, so that the fullerene material is efficiently taken by the macrophage, and the superior antioxidant and anti-inflammatory properties of the fullerene are fully exerted in the cell.

The invention relates to the field of preparation of catalyst materials, in particular to a preparation method and application of a 4-(pyridine-2-yl)-6-(4-(pyridine-4-yl) phenyl) pyrimidine-2-amine copper-phosphotungsten oxygen cluster catalyst. The method comprises the following steps: sequentially mixing copper salt, phosphotungstic acid, 4-(pyridine-2-yl)-6-(4-(pyridine-4-yl) phenyl) pyrimidine-2-amine and deionized water in a container according to a certain proportion, putting the mixture into a polytetrafluoroethylene reaction kettle, reacting for a period of time at a certain temperature, gradually cooling, filtering, washing and drying to obtain the copper-phosphotungstic acid. The green crystal 4-(pyridine-2-yl)-6-(4-(pyridine-4-yl) phenyl) pyrimidine-2-amine copper-phosphotungstic oxygen cluster catalyst is obtained through a one-pot method. The catalyst can be applied to a reaction for synthesizing a rubber accelerator through photocatalytic coupling of 2-mercaptobenzothiazole. The method has the advantages of high reaction speed, simple reaction process, high purity of the obtained product, simple post-treatment and the like. And the catalyst has a clear molecular structure and is beneficial to research on a catalytic reaction mechanism.