62 results about "Perylenetetracarboxylic dianhydride" patented technology

The invention discloses an organic electrode material, which comprises an estolide part and a diamine part with electrochemical activity, wherein the estolide is one or several of pyromellitic dianhydride, naphthalenetetracarboxylic dianhydride or perylenetetracarboxylic dianhydride; the diamine is one or two of 2,6-diamino-anthraquinone, 1,4-diamino-2,3-dicyano anthraquinone; n(estolide):n(diamine) is 1 to (0.8 to 1.2). The invention also provides a preparation method of the organic electrode material. The invention also discloses a sodium ion battery with the organic electrode material. The organic electrode material provided by the invention has the advantages that the voltage of the material is improved; through increasing the electrochemical activity centers of the material, the volume of the material is increased; in addition, the preparation process of the material is simple; the sodium ion battery with the organic electrode material shows good electrochemical performance.

The invention provides a graphene oxide/perylene bisimide donor-receptor composite material. A preparation method of the graphene oxide/perylene bisimide donor-receptor composite material is mainly characterized in that 3,4,9,10-perylenetetracarboxylic dianhydride is taken as a raw material, and a perylene bisimide derivative with low LOMO energy level and excellent photoelectric property is synthesized through bromination, amidation and nucleophilic substitution; then the graphene oxide/perylene bisimide organic-inorganic hybrid donor-receptor composite material is synthesized on the basis of nucleophilic substitution. The raw materials of the composite material are easy to obtain and low in cost, and the reaction yield is high. Graphene oxide has large specific surface area and contains oxygen-containing functional groups which can produce strong actions with metal ions, so that the composite material has high sensitivity and selective recognition on divalent copper metal ions in the environment and has pH sensitivity.

A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material includes: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water, freeze-drying after the reaction to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.

The invention relates to a monodisperse laser-responsive photoinducedly-movable one-dimensional organic semiconductor microbelt which can convert luminous energy into mechanical energy at a microscopic scale so as to make other things work, and a preparation method and application thereof. The one-dimensional organic semiconductor microbelt is obtained through self-assembly of a plurality of perylene bisimide derivatives having same substituents at two ends and containing 3,4,9,10-perylenetetracarboxylic dianhydride in virtue of pi-pi interaction among 3,4,9,10-perylenetetracarboxylic dianhydride. In the absorption wavelength range of a construction monomer molecule and under irradiation by laser with laser intensity density of greater than or equal to 40 mW/cm2, the one-dimensional organic semiconductor microbelt continuously moves on the surface of a hydrophobic substrate under excitation, and the moving manner of the microbelt is directly related to the structure of construction monomers composing the one-dimensional organic semiconductor microbelt while the moving speed of the microbelt is directly related to provided laser intensity density. Thus, the moving manner of the one-dimensional organic semiconductor microbelt can be controlled by adjusting the structure of construction monomers composing the one-dimensional organic semiconductor microbelt.

The invention provides a preparation method of a fluorescent dye and a water-soluble near-infrared fluorescent probe, and belongs to the technical field of chemical synthesis. The invention provides aperylene diimide derivative, wherein R1 is a conjugated group with aggregation-induced emission characteristics, and R2 is pyridinium salt with alkyl chains of different lengths, PEG (polyethylene glycol) with different chain lengths or tri-PEG benzene. The derivative is prepared from 3,4,9,10-perylenetetracarboxylic dianhydride as a raw material through the following chemical reactions: (1) 3,4,9,10-perylenetetracarboxylic dianhydride and bromine are subjected to a reaction in a molar ratio of 1 to (1 to 10) to obtain 1,7-dibromo-3,4,9,10-perylenetetracarboxylic dianhydride; (2) 1,7-dibromo-3,4,9,10-perylenetetracarboxylic dianhydride and trimethyl tin-tetraphenyl ethylene are subjected to a reaction under the catalysis of Pd(PPh3)4 to obtain a coupling product; and (3) the coupling product and an amine-terminated compound are subjected to a reaction, and the reaction product is bonded with hydrophilic pyridine bromide onium salt or PEG in an anhydride position to obtain the target product. The obtained water-soluble fluorescent material can be used for near-infrared cell imaging.

The invention provides a surfactant as well as a preparation method and application thereof. The surfactant has relatively high surface activity and good foaming and foam stabilization effects. The molecule of the surfactant comprises 4 hydrophobic chain segments and hydrophilic units, wherein the hydrophobic chain segments are alkyl chains containing 8-18 carbon and the hydrophilic units are quaternary ammonium salt radicals; and the hydrophobic chain segments and the hydrophilic units are in covalent linkage at the part adjacent to quaternary ammonium salt through a bridge connection unit with an aromatic ring structure. The preparation method comprises the following steps: firstly, enabling aromatic tetracarboxylic dianhydride and dibromoethane to react, so as to generate an intermediate with four branch chains; and then enabling the intermediate and alkyl dimethyl tertiary amine to react so that the intermediate is modified with the quaternary ammonium salt radicals with positive charges and hydrophilic carbon chains, wherein the aromatic tetracarboxylic dianhydride is pyromellitic dianhydride, 1,4,5,8-naphthalenetetracarboxylic dianhydride or 3,4,9,10-perylenetetracarboxylic dianhydride, and the alkyl dimethyl tertiary amine is R-N(CH3)2, wherein R is CH3(CH2)n and n is an integer of 7-17.

The invention discloses a PDI-loaded biochar photocatalyst and a preparation method and a use method thereof. The photocatalyst is prepared from the following raw material components: PDI, charcoal and acid in a mass ratio of 1 to 45: 1: 3000 to 7000. According to the invention, perylene-3, 4, 9, 10-tetracarboxylic dianhydride, beta alanine, imidazole and biochar are used as raw materials, an organic synthesis method is adopted to obtain PDI, the photocatalyst is obtained through synchronous acidification, and the application method of the photocatalyst is provided, so that the PDI-loaded biochar photocatalyst prepared by the invention is simple in preparation process and high in yield, and has good application prospects under the condition of not introducing metal elements. A system can perform efficient catalytic degradation on iohexol in water.

The invention discloses a mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe and an application thereof. The molecular formula of the mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe is C104H108Br2N4O18P2, and the molar mass of the fluorescent probe is 1923.74. The mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe is characterized in that two sides of a fluorophore 3,4,9,10-perylenetetracarboxylic diimide are connected with two water-soluble PEO chains, and the hydrophilicity of the probe is improved greatly; by means of presence of a linking group, the whole conjugate plane is enlarged, and the fluorescence property of the probe is improved; a triphenylphosphine cation is introduced to the position of the linking group, so that the linking group serving as a targeting group can be specifically bound to the mitochondrion. The invention further provides the application of the mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe in living cell imaging and provides an application method of the mitochondrion 3,4,9,10-perylenetetracarboxylic dianhydride targeting fluorescent probe. Experiments prove that the fluorescent probe enters cells easily, is good in cell uploading rate and good in cell permeability and cannot produce cytotoxicity.

The invention discloses a PDI/MOF heterojunction photocatalyst and a preparation method and a use method thereof. The photocatalyst is prepared from the following raw material components: PDI, MIL-101 (Cr) and acid in a mass ratio of 1: 0.11-1: 37. According to the invention, perylene-3, 4, 9, 10-tetracarboxylic dianhydride, beta-alanine, imidazole and MOF are used as raw materials, PDI is obtained by an organic synthesis method, the PDI/MOF heterojunction photocatalyst is obtained by a water bath heating method, and the use method of the photocatalyst is provided, so that the prepared PDI/MOF photocatalyst has the characteristics of simple preparation process, high yield, large specific surface area and multiple reaction sites; and the use of hydrofluoric acid is avoided, and the material can activate persulfate under visible light to perform efficient catalytic degradation on iohexol in water.

The invention discloses a method for preparing a shape memory polymer through non-covalent modification on graphene by 3,4,9,10-perylenetetracarboxylic dianhydride. The method includes adding 0.02 g of graphene into 80 milliliters of N-methylpyrrolidone, performing ultrasonic dispersion for 0.5-1 hour, adding 0.0037 g of zinc acetate, 0.0392 g of 3,4,9,10-perylenetetracarboxylic dianhydride and 0.0242 g of tris(hydroxymethyl)aminomethane, continuing to perform ultrasonic dispersion for 0.5-1 hour, reacting in a nitrogen atmosphere for 10-14 hours at 180 DEG C, pouring reaction liquid into absolute ethyl alcohol to precipitate and discharge after the reaction is terminated, filtering, subjecting a filtered substance to vacuum drying to obtain graphene non-covalently modified by the 3,4,9,10-perylenetetracarboxylic dianhydride, and enabling the graphene non-covalently modified by the 3,4,9,10-perylenetetracarboxylic dianhydride to react with HDI and polycaprolactone diol so as to obtain the shape memory polymer. The method has the advantages that the method is simple to operate, particularly, a preparation process of the graphene non-covalently modified by the 3,4,9,10-perylenetetracarboxylic dianhydride is quite simple and easy to popularize, and synergetic enhancement effect of the 3,4,9,10-perylenetetracarboxylic dianhydride and the graphene in terms of performance is fully utilized, so that the prepared shape memory polymer is excellent in mechanical performance, shape memory performance and thermal performance.

The invention discloses a perfluoroalkyl-modified perylene imide and its preparation method. The structural general formula of the perfluoroalkyl-modified perylene imide is shown in the description, and the structural formula of R is shown in the description, wherein, X represents H, F and Br, m and n refer to the number of alkyl C atom and the number of perfluorinated alkyl C atom respectively, m is 1, 2, 3, 4, 5 or 6, and n is 1, 3, 5 or 7. In the preparation method, 3,4,9,10-perylenetetracarboxylic dianhydride and perfluoroalkylamine are used as raw materials, the molar ratio of 3,4,9,10-perylenetetracarboxylic dianhydride and perfluoroalkylamine is 1:2 to 1:6, and in a temperature range of the room temperature to the solvent reflux temperature, the raw materials are stirred for a reaction for 1-12 hours in an organic solvent under the protection of Ar or N2 to generate the perfluoroalkyl-modified perylene imide. The preparation method can significantly increase the solubility of a perylene imide type material in an organic solvent, at the same time, improve the light and heat stability of the perylene imide type material and the device stability in a field effect transistor.

The invention discloses a preparation method of core-shell type nano ceramic powder based on graphene coating, which comprises the following steps: preparing a polyamino cationic perylene bisimide graphene dispersing agent by using perylene-3, 4, 9, 10-tetracarboxylic dianhydride and vinylamine as raw materials, and modifying graphene by using the polyamino cationic perylene bisimide graphene dispersing agent to prepare modified graphene dispersion liquid; the preparation method comprises the following steps: preparing a graphene dispersion liquid, preparing a modified nano ceramic powder suspension, slowly dropwise adding the modified nano ceramic powder suspension into the modified graphene dispersion liquid under an ultrasonic stirring condition, continuously stirring after dropwise adding, standing, finally filtering, washing a precipitate, and drying to obtain the core-shell type nano ceramic powder. The preparation method is easy to operate and low in cost, and the prepared core-shell type nano ceramic powder is good in dispersity and can well modify the performance of a material when being used for modification of a ceramic composite material.