7 results about "Polyaniline derivatives" patented technology

This invention relates to the field of polyaniline derivative preparation technology, and more particularly to a green preparation method for poly(2,3-dimethylaniline). The green preparation method provided by this invention includes mixing a reaction mother liquor for preparing poly(2,3-dimethylaniline), a nitric acid solution, and 2,3-dimethylaniline, and then adding Fe... 3+ The catalyst is subjected to a first heat treatment, hydrogen peroxide is added, and a second heat treatment is performed to obtain a first-use reaction mother liquor and a filter cake. The filter cake is post-treated to obtain the poly-2,3-dimethylaniline. The first-use reaction mother liquor is recycled according to the above process. During the above recycling process, when the COD content in the reaction mother liquor obtained after recycling is greater than 29000 mg / L, the molar ratio of H2O2 to 2,3-dimethylaniline in hydrogen peroxide is increased based on the molar ratio of H2O2 to 2,3-dimethylaniline in hydrogen peroxide during the first recycling process. The preparation method has high yield and is environmentally friendly.

The invention relates to the field of photovoltaic materials, and discloses a polyaniline derivative as well as a preparation method and application thereof. The structural formula of the polyaniline derivative is shown as a formula (I), R is alkyl phenyl, Ar is a functional group formed by an electron-deficient reaction monomer, and n is an integer of 10-1000. The polyaniline derivative is prepared by adopting a direct arylation condensation polymerization reaction, and the specific preparation method comprises the following steps: in an inert atmosphere, dissolving dihalogenated triphenylamine, an electron-deficient reaction monomer, a catalyst, a ligand, an additive and the like in a reaction solvent, and reacting under certain conditions. The problems that a polyaniline derivative synthesis method is complex and the performance is poor when the polyaniline derivative is used as a hole transport material of a perovskite solar cell are solved, and the preparation method is green and efficient and has a wide application prospect.

This invention provides a lithium-ion battery anode, its preparation method, and its uses. The lithium-ion battery anode includes a current collector and a slurry film coating the current collector. The slurry film includes an N-type conductive organic material. The N-type conductive organic material includes any one or a combination of at least two of polyaniline, polyaniline derivatives, perylene tetrahydric anhydride, perylene tetrahydric anhydride derivatives, aromatic diimides, or aromatic diimide derivatives. By coating the current collector with a slurry containing mixed N-type conductive organic materials, the N-type conductive organic material is added to the lithium-ion battery anode, which can improve the fast charging capability of the lithium-ion battery, accelerate the diffusion of lithium ions to the anode, reduce concentration polarization, and effectively improve the charging speed of the lithium-ion battery.

A solid electrolytic capacitor includes a porous body including a valve metal, a dielectric layer formed on a surface of the porous body, a first conductive layer covering the dielectric layer, a second conductive layer laminated on the first conductive layer, a carbon layer laminated on the second conductive layer, and a silver layer laminated on the carbon layer. The first conductive layer contains one or more substances selected from the group consisting of polyaniline, polyaniline derivatives, polythiophene, polythiophene derivatives, polypyrrole, and polypyrrole derivatives, and the second conductive layer contains polyaniline or a polyaniline derivative.

This invention relates to the field of polyaniline derivative preparation technology, and more particularly to a method for preparing poly2,3-dimethylaniline. The invention provides a method for preparing poly2,3-dimethylaniline, comprising the following steps: mixing nitric acid solution and 2,3-dimethylaniline until completely dissolved, and adding Fe... 3+ The catalyst is subjected to a first heat treatment, hydrogen peroxide is added, and a second heat treatment is performed to obtain the poly(2,3-dimethylaniline); the molar ratio of nitric acid to 2,3-dimethylaniline in the nitric acid solution is (0.95~1.3):1. The poly(2,3-dimethylaniline) prepared by the above method has a high yield, reaching over 90%.

The invention relates to a preparation method of an all-solid-state lithium battery positive electrode material. According to the method, the polyaniline derivative and the organic sulfide are compounded, so that the compatibility of the polyaniline derivative and the organic sulfide is better than that of polyaniline, and the interaction of a molecular level is achieved. Part of nitrogen-substituted polyaniline is used, the alkalinity of the polyaniline is higher than that of polyaniline, a better catalytic effect on organic sulfides is achieved, and the positive electrode material with higher catalytic energy than that of polyaniline can be obtained. In an organic solvent such as N-methyl pyrrolidone, a composite solution of a polyaniline derivative and an organic sulfide is prepared, and conductive carbon black is added. The composite solution is coated or brushed on the surface of a current collector, such as copper, aluminum, platinum or stainless steel, so that the lithium secondary battery positive electrode with high specific energy is obtained. The method is simple to operate, is suitable for the field of high-specific-energy lithium batteries, and has a wide application prospect.