6 results about "Thio-" patented technology

A polymerizable monomer adopted to a display panel is represented as following chemical formula:

wherein, m≧0; “Z” is selected from oxygen, sulfur, carbonyl, caroboxyl, methyoxy, methylthio, thio, ethenylcarbonyl, carbonylethenyl, difluoromethoxy, difluoro methylthio, ethyl, difluoroethane, 1,2 difluoroethane, vinylene, difluoroethenylene, ethynyl, or single bond. “X₁” and “X₂” are independently selected from oxygen, sulfur, methyoxy, carbonyl, caroboxyl, -carbamoyl, methylthio, ethenylcarbonyl, carbonylethenyl, or single bond. “Sp₁” and “Sp₂” are independently a spacer or single bond. “P₁” and “P₂” are independently a polymerizable group.

The invention discloses a making method of aromatic bromide in the chemical technical domain, which comprises the following steps: adopting active aromatic hydrocarbons, bromide and nitrogen agent as catalyst, metal chloride and reacting solvent to blend together; stirring under normal pressure to react; diluting the composite solution; stewing; filtering to remove organic solid; washing filtrate through thio-sodium sulfate solution until the organic phase displays colorless; separating organic phase; extracting water phase through organic solvent; separating organic phase; combining the organic phase; drying through anhydrous magnesium sulfate; filtering to remove drier; decompressing filtrate and rectifying to obtain rough product; proceeding column chromatography for rough product to obtain pure brom-aromatic product.

Disclosed for use in treating a metal, e.g., an alloy of silver as aforesaid, is a water-based composition comprising a treatment agent selected from an alkanethiol, alkyl thioglycollate, dialkyl sulfide or dialkyl disulfide and at least one of an amphoteric, nonionic or cationic surfactant in a concentration that is effective to solubilise the treatment agent. Preferably the composition comprises at least a non-ionic relatively hydrophobic surfactant e.g. cocamide DEA. The composition is particularly suitable for the treatment of Ag—Cu—Ge alloys.

The invention provides a cadmium sulfide quantum dot and a preparation method thereof.The preparation method comprises the steps of placing plant tubers containing starch in a container, adding water,conducting heating extraction, cooling and filtering, and obtaining a plant leaching solution containing starch; and adding thioacetamide and cadmium sulfate, stirring, putting into an electronic steam pressure sterilization pot, reacting at the temperature of 121 DEG C under the pressure of 102kPa, and cooling to obtain the cadmium sulfide quantum dots. According to the method, the cadmium sulfide quantum dots are prepared in situ in one step in a short reaction time under the conditions of low temperature and low pressure by taking the plant leaching solution containing starch as a stabilizer and a modifier.

The invention discloses a preparation method and application of a nanocomposite oxygen-doped molybdenum disulfide/titanium dioxide nanotube array. According to the principle of the preparation method, a TiO2 nanotube array prepared through an anodic oxidation method is placed in a mixed solution containing ammonium heptamolybdate, thioacetamide, sodium dithionite and ammonia water, MoOxSy nanoparticles are deposited on the TiO2 nanotube array through a simple chemical bath deposition method, and the MoOxSy/TiO2 nanotube array is obtained. The method has the advantages that the chemical bath deposition method is simple in process, mild in condition, energy-saving and environment-friendly. The prepared MoOxSy/TiO2 nanotube array grows on a titanium foil substrate in situ, is vertically arranged, is uniform in size and can be directly used as a photoelectrode for photoelectrocatalytic degradation of tetracycline hydrochloride, and the degradation efficiency of the MoOxSy/TiO2 nanotube array is 1.5 times that of the TiO2 nanotube array.

The invention belongs to the field of organic synthesis, and discloses a method for synthesizing a naphthopyran-2-ketone compound. The method comprises the following step: in the presence of benzoquinone, palladium acetate, 3-(4-methoxyphenyl) thiopropane-1-sodium sulfonate and a solvent, a phenolic compound and butyl acrylate react to obtain the naphthopyran-2-ketone compound carrying out a reaction. The phenolic compound is selected from one of the following structures as shown in the specification, wherein R1 is selected from hydrogen, halogen, alkoxy and ester group, R3 is selected from hydrogen, alkyl, alkoxy, trifluoromethyl, acyl and naphthyl, and R2 is selected from hydrogen or halogen. The reaction conditions are simple and mild, only one catalyst is needed, the use amount of thecatalyst is small and only needs 10 mol%, the reaction starts from olefin carboxylic ester, and therefore the reaction has higher economical efficiency. The reaction has good universality, is suitablefor substrates with different substituents, and has high yield.