9437 results about "Aniline" patented technology

An electric smoking system includes a cigarette including a cylindrical tobacco web partially filled with tobacco material to define a filled tobacco rod portion and an unfilled tobacco rod portion, and an electric lighter. The wrapper includes a filler of ammonium-containing compounds effective to reduce the gaseous constituents of the smoke produced during smoking. The system includes a pilot burner including at least one heating vane and a controller adapted to control heating of the heating vane. The lighter is configured to at least partially contain the cigarette such that the heater blade heats the heating region of the cigarette. Manipulating the controller to limit the heating of the heater blades to a predetermined temperature range which allows the delivery of the smoke generated when the portion of the tobacco rod is heated while at least reducing the amount of smoke present in the smoke as compared to smoking a cigarette having only calcium carbonate as filler. A gaseous component. The gaseous components that can be reduced include carbon monoxide, 1,3 butadiene, isoprene, acrolein, acrylonitrile, hydrogen cyanide, 0-toluidine, 2-naphthylamine, nitrogen oxide, benzene, NNN, Phenol, catechol, benzanthracene and benzopyrene.

Fluorescent biosensor molecules, fluorescent biosensors and systems, as well as methods of making and using these biosensor molecules and systems are described. Embodiments of these biosensor molecules exhibit fluorescence emission at wavelengths greater than about 650 nm. Typical biosensor molecules include a fluorophore that includes an iminium ion, a linker moiety that includes a group that is an anilinic type of relationship to the fluorophore and a boronate substrate recognition/binding moiety, which binds glucose. The fluorescence molecules modulated by the presence or absence of polyhydroxylated analytes such as glucose. This property of these molecules of the invention, as well as their ability to emit fluorescent light at greater than about 650 nm, renders these biosensor molecules particularly well-suited for detecting and measuring in-vivo glucose concentrations.

The invention provides a process for the preparation of a compound of Formula 1,

comprising coupling a carboxylic acid of Formula 2

with an aniline of Formula 3

in the presence of a coupling agent.

The present invention includes the preparation of highly conducting conjugated polymers and their use as electrochemical actuators, A typical electrochemical actuator comprises a highly conducting, conjugated polymer for the anode or the cathode, or for both the anode and the cathode; suitable conjugate polymers have a conductivity ≧100 S/cm. The material may have any form, including films and fibers. A preferred shape is a strip or a fiber, where the fiber can be solid or hollow, although any shape may be used. Before use, the material may be treated, for example, by immersion in an acid, in order to dope/protonate the material or to introduce anions or to exchange the anion in the polymer for another anion. Other materials may be incorporated in the polyaniline to increase its conductivity or to provide other benefits, such as increased strength. Useful conducting polymers include monomers of anilines, pyrroles, thiophenes, phenylene vinylenes, and derivatives thereof.

Disclosed are antioxidant compositions comprising of: (1) an organomolybdenum compound; (2) an alkylated diphenylamine; and (3) a sulfur compound selected from the group consisting of: (a) thiadiazole; (b) dithiocarbamate; and (c) mixtures of (a) and (b).

The invention provides a black composite reactive dye having three primary color constituents comprising, green disazo dye employing ethylene sulfone series arylamine or aniline derivative as diazo component and H acid as coupling component, one ore more red disazo dyes employing sulfoalkyl J acid or carboxymethyl J acid derivatives as coupling components, one ore more yellow bisazo or polyazo dyes employing sulfochlorinated 3,5-diaminobenzoic acid or sulfoalkyl derivatives as coupling components. The dye can be applied to intermittent and continuous dyeing for cellulose fiber, protein fiber, poly nylon and their fiber mixed fabrics.

The invention discloses a porous titanium dioxide/graphene composite material and a preparation method thereof. The preparation method comprises the steps of: adding aniline and graphene into a surfactant-containing protonic acid solution according to a certain ratio; preparing a nanometer polyaniline/graphene composite material through an in-situ polymerization method; preparing titanium dioxide sol by using a sol-gel method; adding 0.05-0.20g of nanometer polyaniline/graphene composite material into 50mL of sol, uniformly mixing; standing and aging the sol for 3-5 days; drying in a drying oven at the temperature of 60-120 DEG C; milling; calcining the obtained composite for 30 minutes -2 hours at the temperature of 200-550 DEG C; and removing the polyaniline, thereby obtaining the porous titanium dioxide/graphene composite material. According to the invention, the porous titanium dioxide/graphene is prepared by utilizing the nanometer polyaniline and the titanium dioxide is deposited on the graphene, so that the contact area of the titanium dioxide and pollutants is increased, the separating efficiency of photo-generated electrons and holes is improved and the photocatalytic efficiency is improved.

The present invention provides a cytokine production inhibitor containing as an active ingredient an aniline derivative of the formula (I) or a salt thereof:

[wherein A is CO or SO₂; Cy is an aryl group or a heterocyclic group; each of R¹ and R² which are independent of each other, is a halogen atom, a cyano group, a nitro group, an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, a cycloalkyl group which may be substituted, a cycloalkenyl group which may be substituted, an aryl group which may be substituted, a heterocyclic group which may be substituted, an amino group which may be substituted or a —B-Q group; R³ is a -M¹-M²-R⁵ group; R⁴ is a hydrogen atom or an alkyl group which may be substituted; x is an integer of from 0 to 5; y is an integer of from 0 to 4; and z is an integer of from 0 to 1].

The invention discloses an oxidized grapheme/polyaniline super capacitor composite electrode material and the preparation method and the application thereof. The preparation method comprise the following steps: firstly, adding oxidized graphite to water for ultrasonic dispersion so as to form an oxidized grapheme solution with uniformly dispersed single pieces; at room temperature, dropping aniline to the obtained oxidized grapheme solution for continuous ultrasonic dispersion to from a mixed solution; at a low temperature condition, adding hydrogen peroxide, ferric trichloride and a hydrochloric acid solution dropwise to the mixed solution, and stirring the solution for polymerization; and after the reaction is finished, centrifugating, washing and roasting the obtained mixed solution in vacuum to obtain the oxidized grapheme/polyaniline super capacitor composite electrode material which is used as the electrode material of an electricity storage system of a super capacitor and a battery. The oxidized grapheme/polyaniline super capacitor composite electrode material with good electrochemistry performance is obtained by the method, and the specific capacity of the oxidized grapheme and the polyaniline is greatly improved. In addition, the addition of the oxidized grapheme improves the charge and discharge service life of the polyaniline.

The invention relates to a conduction macromolecule polyaniline nanometer fiber manufacturing method. It includes the following steps: respectively dissolving aniline and oxidant in acid with water medium; mixing them with action of ultrasonic wave, and controlling temperature at¿C5-30 centigrade degree to do aniline polyreaction; gaining doping state polyaniline nanometer fiber when it finishes; removing the water and solubility impurity; drying; using ammonia liquor to neutralize the doping state; filtering; washing; drying; gaining eigenstate polyaniline nanometer fiber; processing it by dopant to gain conduct state; drying to gain powdery purpose. The invention adopts ultrasonic wave in polyreaction to gain polyaniline fiber with 20-100nm diameter, 500-5000nm length. The method has simple operation, and high yield.

The invention discloses 9,10-phenanthroimidazole derivatives and use thereof as electroluminescent materials, and belongs to the technical field of organic electroluminescence. The luminescent materials have the structural general formula as the description. A core group is 9,10-phenanthro4,5-1,3imidazole or derivatives; substituent groups R0-R8 are respectively selected from hydrogen, alkyl, hydroxyl, alkoxy, nitro, cyan, amino, sulfydryl, halogen atom, phenyl, tolyl, naphthyl, furyl, thienyl, pyrryl, pyridyl, pyranyl, quinolyl, indolyl, carbazolyl and aniline. The organic electroluminescent materials can be applied to luminous layers or carrier transmission layers in multi-layer organic electroluminescent devices.

The present invention relates to a new industrial process for the synthesis of solvate- free 17a-acetoxy-11ss-[4-(N,N-dimethyl-amino)-phenyl]-19-norpregna-4,9-diene-3,20-dione [CDB -2914] of formula (I) which is a strong antiprogestogene and antiglucocorticoid agent. The invention also relates to compounds of formula (VII) and (VIII) used as intermediates in the process. The process according to the invention is the following: i) 3-(ethylene-dioxy)-estra-5(10),9(11)-diene-17-one of formula (X) is reacted with potassium acetilyde formed in situ in dry tetrahydrofuran by known method, ii) the obtained 3-(ethylene-dioxy)-17a-ethynyl-17ss-hydroxy-estra-5(10),9(11)-diene of formula (IX) is reacted with phenylsulfenyl chloride in dichloromethane in the presence of triethylamine and acetic acid, iii) the obtained isomeric mixture of 3-(ethylene-dioxy)-21-(phenyl-sulfinyl)-19-norpregna-5(10),9(11),17(20),20-tetraene of formula (VIII) is reacted first with sodium methoxide in methanol, then with trimethyl phosphite, iv) the obtained 3-(ethylene-dioxy)-17a-hydroxy-20-methoxy-19-norpregna-5(10),9(11),20-triene of formula (VII) is reacted with hydrogen chloride in methanol, then v) the obtained 3-(ethylene-dioxy)-17a-hydroxy-19-norpregna-5(10),9(11l); -diene-20- one of formula (VI) is reacted with ethylene glycol hi dichloromethane in the presence of trimethyl orthoformate and p-toluenesulfonic acid by known method, vi) the obtained 3,3,20,20-bis(ethylene-dioxy)-17a-hydroxy-19-norpregna- 5(10),9(11)-diene of formula (V) is reacted with hydrogen peroxide in a mixture of pyridine and dichloromethane in the presence of hexachloroacetone by known method, vii) the obtained 3,3,20,20-bis(ethylene-dioxy)-17a-hydroxy-5,10-epoxy-19-norpregn-9(11)-ene of formula (IV), containing approximately a 1:1 mixture of 5a,10a- and 5ss,10ss-epoxides, is isolated from the solution and reacted with a Grignard reagent obtained from 4-bromo-N,N-dimethyl-aniline in tetrahydrofuran.

Compounds are synthesized that contain nitrogen and hindered phenol functionalities of an aromatic amine and hindered phenol for use as oxidative stabilizers for organic materials, paints, lubricants, elastomers, and in other applications. The disclosed methods can efficiently synthesize target monomers and polymers without the use of expensive catalysts. Further, the disclosed methods can scale up to industrially useful quantities. In general, the methods provide an improved, highly efficient and economical process for the synthesis of macromonomers having nitrogen containing moiety and sterically hindered phenols and their corresponding polymers.

The invention discloses graphene-organic acid doped polyaniline composite material and a preparation method thereof. The preparation method includes the following steps: adding graphite oxide to dispersing agent for ultrasonic dispersion to form evenly dispersed graphene oxide liquid mixture; adding aniline monomer to the liquid mixture obtained in the first step for further dispersion under room temperature to form liquid mixture, and then blending for certain time; gradually dripping oxidizer and organic doping acid to the liquid mixture obtained in the second step, and blending for polymerization; centrifuging the liquid mixture obtained in the third step, and washing to get graphene oxide-polyaniline composite material; adding concentrated alkaline to the water suspension of the graphene oxide-polyaniline composite material, heating and blending for reaction; and centrifuging the mixture obtained in the fifth step and washing to get graphene-polyaniline composite material. The invention takes the advantage of the big specific surface area of graphene oxide and the capability of the graphene oxide for absorbing aniline on the surface thereof in on organic system to form sandwiched polyaniline/ graphene oxide- polyaniline compound through polymerization.

This invention relates to a process for preparing 4-nitrodiphenylamine and 4-nitrosodiphenylamine to be used for 4-aminodiphenylamine as an intermediate of antiozonant, wherein carbanilide is reacted with nitrobenzene in the presence of an appropriate base, while simultaneously adding aniline to the mixture so as to regenerate some amounts of carbanilide as a starting material. According to this invention, 4-nitrodiphenylamine and 4-nitrosodiphenylamine can be prepared in a higher selectivity and conversion rate via a continuous reaction by recycling carbanilide, a starting material, while adding a certain amount of aniline during the process. Further, the amount of waste water can be significantly reduced compared to the conventional method without any corrosive materials harmful to the environment.

The invention provides a preparation method and an application of a nitrogen and phosphorus co-doped porous carbon catalyst and belongs to the field of oxygen reduction catalysts for a fuel cell cathode. Nitrogen and phosphorus are introduced with an in-situ doping method, and the nitrogen and phosphorus doping amount is changed by adjusting the content of a nitrogen and phosphorus precursor. Besides, nitrogen and phosphorus co-doped porous carbon is prepared with a hard template method, and controllability of pore diameters of the porous carbon is realized by adjusting a hard template. The method comprises steps as follows: an earlier polymer of aniline monomers, a phosphorus precursor, a silica-based hard template and non-precious metal salt is prepared; the earlier polymer is calcined, and solids are obtained; the solids are etched, cleaned and dried, and the carbon material is obtained. More importantly, the prepared nitrogen and phosphorus co-doped porous carbon material has an excellent oxygen reduction electro-catalytic property under the acid condition and has huge application potential.

The invention provides novel β₂ adrenergic receptor agonist compounds. The invention also provides pharmaceutical compositions comprising such compounds, methods of using such compounds to treat diseases associated with β₂ adrenergic receptor activity, and processes and intermediates useful for preparing such compounds.

The invention discloses a preparation method of a polyaniline and molybdenum disulfide intercalated composite material. The preparation method comprises the steps of preparing suspension of graphene molybdenum disulfide from molybdenum disulfide powder through a chemical intercalation process, adding an aniline monomer, an oxidizing agent and organic acid dopants, and implementing in-situ emulsion polymerization to prepare the polyaniline/molybdenum disulfide intercalated composite material. The preparation method is simple and convenient, controllable and environment-friendly; the material is in emulsion or solid powder, and can be formed by coating, deposition, or pressing powder thereof, and other methods; the material is uniform in texture, stable in performance, and excellent in both photoelectrical performance and thermal stability; and the composite material is applicable to the fields of photoelectronic devices such as a secondary battery, a super-capacitor, an electromagnetic shielding device, an antistatic device, a field effect transistor, a sensor, an organic electroluminescence device and the like.

This invention characteristic is that the flexible flow-collection body comprises support layer and conducive layer, the support layer is an organic membranous winding material whose thickness is 10-100mum; conductive layer is 1-500-layer conductive membranous material whose thickness is 10nm-10mum; The conductive layer material of the flexible flow- collection body is nickel, the platinum, golden, ruthenium, the cobalt or the manganese metal membranous material; RuO2, NiO, TiO2,SnO2, ZrO2, V2O5 or MnO2 transition metal oxide compound membranous material, poly-aniline, poly-pyrrole and poly-thiophene conductive polymer membranous material.

The invention relates to a sulfonylation graphene oxide magnetic adsorbent, and a preparation method and application thereof. The adsorbent uses graphene oxide nanosheet as a substrate; the substrate surface is loaded with magnetic ferrite nanoparticles, and contains a large amount of sulfonic acid. The method comprises the following specific steps: first subjecting a graphite powder to pre-oxidation and deep oxidation, and conducting ultrasonic separation to obtain a graphene oxide solution; then adding a mixed solution of iron ions and ferrous ions; rapidly adding ammonia solution while stirring to obtain magnetic graphene oxide; and finally grafting aminobenzene sulfonic acid to magnetic graphene oxide matrix, washing and determining a constant volume to obtain a final product. The product has good adsorption effect on the heavy metals, copper and cadmium, and organic aniline. The product has the advantages of low cost, large specific surface area, high adsorption capacity and easy separation and recovery. The invention can be used for treating wastewater from smelting factory, electronics factory, chemical plant and electroplating plant.

Belonging to the field of composite material preparation, the invention provides a preparation method of a polyaniline/graphene composite material able to disperse in water stably. The material is prepared by the following steps of: 1) reducing graphene oxide to graphene with hydrazine hydrate; 2) dispersing the newly prepared graphene in a solution containing a macromolecular dispersant; 3) then adding aniline for dispersing; 4) at a low temperature, adding a solution of an oxidizing agent and an inorganic acid into the obtained mixed solution dropwisely, and conducting stirring for polymerization; and 5) carrying out centrifugation and washing, thus obtaining the polyaniline/graphene composite material. Due to the auxiliary effect of the macromolecular dispersant, the polyaniline/graphene composite material obtained in the invention can disperse uniformly in water and can be stored stably. And the obtained dispersed solution generates no sediment after 6 months of placement. Thus, the method of the invention solves the problem of difficult processing of a polyaniline/graphene composite material.

The invention discloses a method for preparing polyaniline coating Li-ion battery anode material LiFePO4. The method is coating polyaniline on the in-situ surface of the powder of Li-ion battery anode material LiFePO4. The method has the following favorable effects: the discharging voltage platform of the polyaniline coating anode material LiFePO4obtained is stable, the battery has higher specific capacity up to one hundred and forty point three mAh/g, the granularity is distributed evenly, the grains are in good appearance and high in discharging capacity and long in cycling life, etc.

The invention relates to the technical field of synthesizing of graphene materials and provides a preparation method of nitrogen-doped graphene. The preparation method includes: using an improved Hummers method to prepare continuous large-piece graphene oxide; using a hydrothermal method to prepare the graphene oxide into graphene of a porous three-dimensional structure; ultrasonically dispersing the graphene of the porous three-dimensional structure into an acid solution with the pH being 1-5, adding aniline, well mixing, adding ammonium persulfate, well mixing, and transferring the obtained mixed liquid into a teflon container for hydrothermal reaction so as to obtain a porous three-dimensional graphene-polyaniline compound; performing high-temperature treatment under nitrogen protection to allow polyaniline to decompose out nitrogen sources so as to obtain the nitrogen-doped porous three-dimensional graphene. The method has the advantages that the nitrogen-doped graphene with high nitrogen content can be prepared, the structure of the three-dimensional graphene can be kept, the obtained nitrogen-doped porous three-dimensional graphene is good in electrochemical performance and quite suitable for being used for producing a super capacitor, and the method is convenient to operate and beneficial to industrial popularization.