43 results about "Polycarbonyl" patented technology

The invention discloses a high-filled modified-surface strengthened polyamide composition, which consists of semi-aromatic polyamide, aliphatic polyamide, a polycarbonyl compound and an inorganic strengthened filler, and is mainly used in the fields of electronic and electrical appliances, automobiles, furniture, building materials and fibers. The composition has the advantages that: as the polycarbonyl compound is added into a polyamide composition, so the branching reaction of polyamide in a melt extrusion process can be performed to obtain branched polyamide, and the composition of the branched polyamide has high mechanical performance and high flowability; and 2, part of low-molecular-weight branched polyamide can be produced in the system and the viscosity of the melt in the system can be reduced due to the amide exchange and branching reaction in the melt extrusion process, and thus, the surface of the product is smooth, and the product can be used in place of metal and is very suitable for shell materials of electronic consumer equipment and automobile parts.

The invention discloses a photocatalytic hydrogen production system by utilizing a stabilizer. The system comprises a catalyst (polycarbonyl diiron dithiolate cluster compound), a photosensitizer (CdTe, CdSe, CdS quantum dots, and the like), a stabilizer (chitosan, beta-cyclodextrin, sodium polyacrylat, polyvinylpyrrolidone, sodium alginate, poly(N-isopropylacrylamide), polydimethyldiallylammonium chloride, benzalkonium chloride, octadecylmethyldihydroxyethyl ammonium bromide, etc.), an electronic sacrificial body (ascorbic acid), and a water-containing solvent. The photocatalytic hydrogen production system has the advantages of simple preparation, cheap and available components, high hydrogen yield efficiency, and good system stability, the hydrogen yield reaches 162 [mu]mol for a system with a total volume of 10 mL for one time, and the hydrogen conversion number is as high as 1615 calculated on the basis of catalyst. The hydrogen yield is only 7.5 [mu]mol in the same system in the absence of the stabilizer, and the hydrogen conversion number is only 57 calculated on the basis of catalyst.

Fiber-containing composites are described that contain woven or non-woven fibers, and a cured binder formed from a binder composition that includes (1) a reducing sugar and (2) a crosslinking agent that includes a reaction product of a urea compound and a polycarbonyl compound. Exemplary reaction products for the crosslinking agent may include the reaction product of urea and an α,β-bicarbonyl compound or an α,γ-bicarbonyl compound. Exemplary fiber-containing composites may include fiberglass insulation.

The invention discloses a preparation method of a La-Fe/CTMAB (cetyltrimethylammonium bromide) composite modified bentonite adsorbing material. The preparation method comprises the following steps: preparing a polycarbonyl iron solution and a La(NO3)3 solution, adding the polycarbonyl iron solution and La(NO3)3 solution into a bentonite raw soil suspension to obtain a La-Fe inorganic modified bentonite suspension, carrying out vacuum filtration, washing, drying and grinding to obtain La-Fe inorganic modified bentonite, adding the La-Fe inorganic modified bentonite into a CTMAB solution, treating in a thermostatic water bath, stirring and aging to obtain a La-Fe/CTMAB inorganic-organic composite modified bentonite suspension, and carrying out vacuum filtration, washing, drying and grinding to obtain the La-Fe/CTMAB composite modified bentonite adsorbing material. The method solves the problem of poor adsorbability of bentonite raw soil for organic pollutants in the prior art.

The invention relates to a polycarbonyl nitrogen heterocyclic organic compound for an electrode material of a lithium battery, and belongs to the field of preparation of lithium battery electrode materials. A preparation method of the polycarbonyl nitrogen heterocyclic organic compound comprises: dissolving an aromatic carboxylic acid anhydride and an amino nitrogen heterocyclic compound into a suitable organic solvent, reacting for a period of time under the protection of nitrogen or argon and at a reflux temperature, then cooling, filtering and washing to obtain a solid polycarbonyl nitrogenheterocyclic organic compound. The obtained polycarbonyl nitrogen heterocyclic organic compound has certain specific capacity and excellent cycle stability for preparing an electrode material of a lithium battery. The method has the advantages of simple process, low cost, low energy consumption, good reproducibility and excellent performance, and is suitable for industrial production.

Fiber-containing composites are described that contain woven or nonwoven fibers, and a cured binder formed from a binder composition that includes (1) a reducing sugar and (2) a crosslinking agent that includes a reaction product of a urea compound and a polycarbonyl compound. Exemplary reaction products for the crosslinking agent may include the reaction product of urea and an α,β-bicarbonyl compound or an α,γ-bicarbonyl compound. Exemplary fiber-containing composites may include fiberglass insulation.

The invention discloses a full-printing mesoscopic perovskite solar cell. The solar cell is arranged on a substrate and comprises a cathode layer, an electron transport layer, a mesoporous layer, a barrier layer and an anode layer which are sequentially stacked on the substrate; the mesoporous layer, the barrier layer and the anode layer are filled with a perovskite thin film, and a polycarbonyl small molecule additive is introduced into a precursor solution of the perovskite thin film. The quality of the perovskite thin film is improved; perovskite defects are overcome, perovskite grain boundaries are modified, so that the device performance of the perovskite solar cell is improved, the problem that the performance of a solar cell device is reduced due to the fact that crystallization ofa perovskite thin film material in mesopores is difficult to control is solved, and the defects that a full-mesoscopic perovskite solar cell is poor in process repeatability and low in efficiency areovercome.

The invention relates to the field of organic chemistry. In order to solve the problem that methods of synthesizing the polycarbonyl-substituted chiral pyrrolidine derivative are not many, the invention provides a polycarbonyl-substituted chiral pyrrolidine derivative and a preparation method thereof. Under the protection of inert gas, a complex formed by a metal-catalyzed precursor and a chiral phosphine ligand is used as a catalyst, and the polycarbonyl-substituted chiral pyrrolidine derivative is synthesized by a [3+2] cycloaddition reaction of ketene and azomethine ylides. The synthetic method is simple to operate, reaction conditions are mild, the substrate universality is high, the product yield is high, the enantioselectivity is high, the synthesized compound is an important nitrogen-containing heterocyclic compound which can be widely applied to various fields of organic synthesis, medicine, material chemistry and fine chemicals.

The invention provides a treatment method for selectively adsorbing and recycling precious metal ions in wastewater by using a modified polymer adsorbent, and belongs to the technical field of precious metal wastewater treatment. The modified polymer adsorbent is prepared by the following steps: (1) mixing elemental sulfur, a polyamine compound, a polycarbonyl compound and a loading substrate, and adding an organic solvent to obtain a solid-liquid mixed solution; (2) in a protective gas atmosphere, carrying out a heating reaction on the solid-liquid mixed solution to obtain a modified polymer mixed solution; and (3) cooling the modified polymer mixed solution to room temperature, washing, centrifuging and drying to obtain a modified polymer adsorbent, wherein the load substrate is a porous adsorption material. According to the treatment method, the characteristics and advantages of the medicament can be fully exerted, so that the adsorbent has the effects of high selectivity, high adsorption capacity, high adsorption rate, stable performance and the like on noble metal ions, and the noble metal is recovered through the separation and recovery unit in the later stage.

The invention relates to a polycarbonyl compound modified graphene oxide as lithium battery electrode material and a preparation method thereof, belonging to the preparation field of lithium battery electrode material. Polycarbonyl compound, graphene oxide and dicyclohexyl carbodiimide were put into organic solvent, and then reacted at a certain temperature for a period of time, then cooled, filtered and washed to obtain polycarbonyl compound modified graphene oxide. The obtained polycarbonyl compound modified graphene oxide has high specific capacity and excellent cycling stability when usedto prepare lithium battery electrode materials. The method has the advantages of simple process, low cost, low energy consumption, good reproducibility and excellent performance, and is suitable for industrial production.

The invention provides a synthesis method of cyclohexane dimethanol. The synthesis method comprises the following step: under the action of a catalyst, performing a hydroformylation reaction and a hydrogenation reaction on cyclohexene formaldehyde to obtain the cyclohexane dimethanol, wherein the catalyst comprises a cobalt compound and an organic tricyclohexylphosphine ligand; the cobalt compoundis preferably a hydrogenated polycarbonyl compound of cobalt. By adopting the synthesis method of the cyclohexane dimethanol, provided by the invention, the use of terephthalic acid and the like is avoided, the synthesis technology is simple, and the cost is low.

The application discloses a mesoporous metal-organic framework compound and a preparation method thereof. The mesoporous metal-organic framework compound has amino functional groups and carboxyl functional groups on an organic framework. The application further discloses a modified mesoporous metal-organic framework compound and a preparation method thereof. The modified mesoporous metal-organic framework compound is a mesoporous metal-organic framework compound modified by a polycarbonyl aldehyde compound. The mesoporous metal-organic framework compound and the modified mesoporous metal-organic framework compound have the advantages of high CO2 capture ability, good cycling performance, absorbing capacity in the visible area or even near-infrared area and excellent photocatalytic reduction capability; a product is CO and the selectivity is 99 percent or above. The preparation method provided by the application has the advantages of simple and reliable steps, good repeatability, convenience in operation and capability of carrying out large-scale preparation.

The invention provides a modified polymer adsorbent for selectively adsorbing and recovering precious metal ions and a preparation method of the modified polymer adsorbent, and belongs to the technical field of precious metal recovery. The method comprises the following steps: 1) mixing elemental sulfur, a polyamine compound, a polycarbonyl compound and a load substrate, and adding an organic solvent to obtain a solid-liquid mixed solution; 2) in a protective gas atmosphere, carrying out a heating reaction on the solid-liquid mixed solution to obtain a modified polymer mixed solution; and 3) cooling the modified polymer mixed solution to room temperature, washing, centrifuging and drying to obtain a modified polymer adsorbent; wherein the loading substrate is a porous adsorption material. The prepared modified polymer adsorbent is mainly applied to selective adsorption of precious metal ions, and has the effects of high selectivity, high adsorption capacity, high adsorption rate, stable performance and the like on the precious metal ions.

The invention discloses a photocatalytic hydrogen-production system containing a polycarbonyl diiron disulfur cluster compound modified by polymer polyethylenimine. The photocatalytic hydrogen-production system comprises the polycarbonyl diiron disulfur cluster compound modified by polymer polyethylenimine, a photosensitizer, an electronic sacrificial agent and an aqueous solvent. The invention also discloses a preparation method of the polycarbonyl diiron disulfur cluster compound covalently modified by polymer polyethylenimine and a hydrogen-production method by constructing the system through the compound. By the photocatalytic hydrogen-production system disclosed by the invention, hydrogen production can be efficiently performed, especially under neutral condition, the hydrogen-production efficiency under illumination is high, the system has high stability, based on the total volume of the system being 10mL, the hydrogen-production amount each time can reach up to 155mu mol, the hydrogen conversion rate calculated based on the catalyst is up to 10,607 and the composition of the system is cheap and easily available.