56 results about "Thenoyltrifluoroacetone" patented technology

The invention discloses amino porphyrin-poly (N-isopropylacrylamide) europium coordination compound and a preparation method of the amino porphyrin-poly (N-isopropylacrylamide) europium coordination compound. The preparation method of the amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is characterized in that (NH2)n-TPP is prepared into an ATRP initiator which is NH2-TPP-X, wherein the X is halogen. The NH2-TPP-X is adopted to initiate NIPAM to be polymerized to obtain polymer which is (NH2)n-TPP-PNIPAM. The europium with tervalence is coordinated with the polymer (NH2)n-TPP-PNIPAM to obtain coordination compound which is (NH2)n-TPP-PNIPAM-Eu(III)-TTA through the TTA, wherein the n meets an equation that is n=1,2,3. The amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is characterized in that a short form of the amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is (NH2)n-TPP-PNIPAM-Eu(III)-TTA, wherein the TPP is tetraphenylporphyrin, wherein the shortened form of the tetraphenylporphyrin is porphyrin, the PNIPAM is the poly (N-isopropylacrylamide), the Eu(III) is the europium with the tervalence, and the TTA is alpha- thenoyltrifluoroacetone.

The invention relates to a dinuclear europium complex luminescent material and a preparation and application of the dinuclear europium complex luminescent material. The structural general formula of the dinuclear europium complex luminescent material is Eu2L16L22(CH3OH)2, wherein L1 is a p-aminobenzoic acid benzoyl thioureas derivatives; and L2 is one of 1,10-phenanthroline, 2,2-dipyridyl or 2-thenoyltrifluoroacetone. The dinuclear europium complex is a luminescent material with good thermal stability and high luminous efficiency; the molecular structure of the dinuclear europium complex is regular, and after a second auxiliary ligand is added in the dinuclear europium complex luminescent material, the fluorescence intensity and the quantum yield of the dinuclear europium complex luminescent material are improved quite obviously. The preparation method has the advantages of simplicity and convenience in process, simple used equipment, simple and easily obtained raw materials and low production cost.

The invention discloses a dual-response magnetic nano particle with fluorescence and a preparation method thereof, belonging to the technical field of functional polymer materials. An existing response magnetic nano particle is smaller in response range and is incapable of tracing mark. A chemical expression formula of the magnetic nano particle is Fe3O4@M(III)-(PNIPAMm-b-PAzoMAn)-TTA (PNIPAM (Poly(N-isopropylacrylamide) and TTA (thenoyltrifluoroacetone), wherein M is Eu<3+>, Tb<3+>, Sm<3+> or Er<3+>, m is equal to 42-132, and n is equal to 5-20. AzoMA and NIPAM (N-isopropylacrylamide) are polymerized to an RAFT (Reversible Addition-Fragmentation chain Transfer) chain transfer agent through an RAFT free radical polymerization method, and M(III)-(PNIPAMm-b-PAzoMAn)-TTA is obtained through a coordination reaction, and then is modified to the surface of a ferriferrous oxide nano particle through an esterification reaction. The dual-response magnetic nano particle is capable of carrying out magnetic separation under the control of the temperature and the light, and has a potential application value in the aspects of biological marking, imaging, artificial muscle and the like.

The invention relates to quaternionic rare earth organic complexes as shown in general formula (I). The chemical name of the organic complexes is Eu-Tb thenoyltrifluoroacetone-N-phenylanthranilic acid-o-phenanthroline organic complexes. The chemical formula of the organic complexes is Tb1-xEux (TTA) 2 (N-HPA) Phen, wherein x is equal to 0-1. The invention also relates to a method for making the quaternionic rare earth organic complexes.

The invention discloses an organic rare earth europium luminescent polypropylene (PP) fiber and a preparation method thereof. The rare earth europium complex Eu(TTA)3DmPPhen luminescent material close to nanoscale is prepared by firstly preparing a phenanthroline neutral ligand and carrying out coordination on the phenanthroline neutral ligand and rare earth Eu (III) in combination with alpha-thenoyltrifluoroacetone and adopting a method of firstly carrying out titration under atmospheric pressure and secondly carrying out reaction under high pressure. The material emits strong pure red light at 615nm in a 10-5mol/L CH2Cl2 solution. The luminescent fiber is prepared by adopting the complex as a luminescent material and carrying out compound melt spinning on the complex and PP. When the content of the rare earth luminescent material in the fiber is 0.05%, the fiber emits stronger pure red light in a 10-5mol/L dimethyl formamide (DMF) solution and the luminescent position is still at 615nm. The luminescent fiber has the advantages of high color purity and better spinnability.

The invention relates to a preparation method of high-color-rendering white phosphor for 3D (three-dimensional) printing, and aims to solve the problems of high color temperature, low color rendering index and poor film forming performance of the white phosphor. The method includes the steps: taking 2-thenoyltrifluoroacetone-phenanthroline-europium, 4-benzoyl benzoic acid-terbium, benzothiazole-zinc and polystyrene-methacrylic acid glycidyl ester as raw materials; performing physical blending, heating and melting, drying, grinding and screening on the raw materials to prepare the high-color-rendering white phosphor, the particle diameter of the white phosphor is smaller than or equal to 1 micrometer, the prepared white phosphor materials are high in accuracy and good in purity, the purity of the white phosphor materials reach 99.8%, color coordinates X=0.332, Y=0.337, white light is emitted, the preparation method is advanced in process, data are detailed and accurate, and the advanced preparation method is used for the high-color-rendering white phosphor for 3D printing.

The invention discloses organic rare earth europium luminescent nylon and a preparation method thereof. The rare earth europium complex Eu(TTA)3DmPPhen luminescent material close to nanoscale is prepared by firstly preparing a phenanthroline neutral ligand and carrying out coordination on the phenanthroline neutral ligand and rare earth Eu (III) in combination with alpha-thenoyltrifluoroacetone and adopting a method of firstly carrying out titration under atmospheric pressure and secondly carrying out reaction under high pressure. The material emits strong pure red light at 615nm in a 10-5mol/L CH2Cl2 solution. The luminescent fiber is prepared by adopting the complex as a luminescent material and carrying out compound melt spinning on the complex and PA6 (polyamide 6). When the content of the rare earth luminescent material in the fiber is 0.08%, the fiber emits stronger pure red light in a 10-5mol/L DMF (dimethyl formamide) solution and the luminescent position is still at 615nm. The luminescent fiber has the advantages of high colour purity and better spinnability.

The present invention relates to a rare earth multi-component coordination compound light-converting agent with ecological and physiological characteristics, its mole ratio is as follows: rare earth 1, organic ligand 0-6, organosilicon surfactant (A) 0-6, and solvent 3-10, in which the rare earth ion is Eu(3+), which is provided by nitrate and hydrochloride of trivalent europium, and the chemicalstructure formula for its organosilicon surfactant is (RO)3SiR1N+R2R3R4X-. Its organic ligand is alpha-thenoyltrifluoroacetone (TTA), triphenyloxyphosphine (TPPO) or its two-component coordination compound. Its applicable liquid solvent is methylbenzene, dimethyl benzene, methyl alcohol, cyclohexane, ethyl alcohol, isopropanol, methyl-sulfoxide or their mixture, and its solid solvent is silicone.

The invention provides a biodegradable light conversion film which is prepared from the following components in parts by weight: 60-64.7 parts of poly (butyleneadipate-co-terephthalate), 35 parts of polylactic acid, 0.1-2 parts of a lubricant, 0.1-2 parts of an opening agent and 0.1-1 part of a light conversion agent; and the light conversion agent is an organic complex formed by rare-earth europium and alpha-thenoyltrifluoroacetone and triphenylphosphine oxide. The poly (butyleneadipate-co-terephthalate) and the polylactic acid are used as a polymer matrix, the light conversion agent is synthesized by using the rare earth europium and organic small molecule ligands, ultraviolet light can be effectively absorbed, red light can be emitted to meet the growth requirements of plants, meanwhile, the biodegradable light conversion film has biological degradation performance, and the accumulation of a mulching film in a soil tilling layer can be reduced. The biodegradable light conversion film disclosed by the invention is wide in application field, can replace traditional PE (polyethylene) mulching films and the like for crop cultivation, and has a wide market prospect. The invention further provides a preparation method of the biodegradable light conversion film.

The invention discloses a preparation method and application of magnetic thenoyltrifluoroacetone TTAaFe3O4. A magnetic TTAaFe3O4 adsorbent is synthesized from TTA and magnetic Fe3O4. The synthesized magnetic TTAaFe3O4 adsorbent is applied to adsorption of heavy metal ions Cu2+, the adsorption effect is good, the adsorption amount is large, the desorption conditions are mild, high reproducibility is achieved, and reutilization is achieved.

The invention relates to a preparation method of red light emitting fluorescent powder. By aiming at the conditions of difficult film forming of red light fluorescent powder and poor ultraviolet light resistant performance, 2-thenoyltrifluoroacetone-phenanthroline-methacrylic acid-europium and (4-vinyl phenyl) trimethoxy silane is used as raw materials to prepare the red light emitting fluorescent powder through solution preparation, polymerization reaction, washing, suction filtration, vacuum freeze drying, grinding and screening. The preparation method has the advantages that the process is advanced; the data is precise, full and accurate; the prepared powder body material has high precision and good purity; the purity reaches 9.2 percent; the powder body particle diameter is less than or equal to 800nm; the chromaticity coordinate X is 0.625; Y is 0.308; red light is emitted out; the materials can be matched with blue and green luminous materials to be prepared into white light emitting light emitting diodes; the preparation method belongs to an advanced red light emitting fluorescent powder preparation method.

The invention discloses a red fluorescence nanofiber with a piezoelectric function and a preparation method of the red fluorescence nanofiber with the piezoelectric function. The method includes steps: dissolving a first component, 2-thenoyltrifluoroacetone and a second component into absolute ethyl alcohol, mixing, stirring for a period of time, and washing and drying a precipitate to obtain a red fluorescence rare earth complex; mixing polyvinylidene fluoride, a third component and acetone, and adding the red fluorescence rare earth complex to obtain electrospinning precursor solution; performing electrospinning by adopting the electrospinning precursor solution to obtain the red fluorescence nanofiber with the piezoelectric function. The nanofiber has an excellent fluorescence propertyand is capable of emitting red fluorescence, fluorescence intensity controllability is realized, beta crystal content of the nanofiber is at least 85% and reaches 97.76% maximally, excellent piezoelectric energy is achieved, and the preparation method is simple, feasible and available for batch production.

The invention discloses an Eu(TTA)3-CTP-TPY complex luminescent material and a preparation method and application. A hexa(4-(terpyridyl)phenoxyl)cyclotripolyphosphazene ligand coordinates with six Eu<3+> luminescence centers simultaneously such that there exist up to six luminescence centers of rare earth complex in a luminescent molecule and 18 beta-diketone ligands (2-thenoyltrifluoroacetone) also exist in each luminescent molecule. Thus, the six-core tripolyphosphazene luminescent material has two ligands simultaneously, which greatly enhances energy transfer efficiency from the ligands tothe europium luminescence centers. And then, the material has more excellent luminescence property. When excited by visible light and ultraviolet light, the complex can produce red light, light response range of the rare earth luminescent material is expanded, and its application range is broadened. The preparation method of the invention has simple steps, is low-cost, has high efficiency, and isof great significance for development of a novel multi-core rare earth photoluminescence material.

The invention relates to the technical field of hydrogel composite materials, and discloses a hydrogel composite material with a porous structure as well as preparation and application thereof. The hydrogel composite material is CNF/CC/Eu/TTA, and a rare earth complex formed by TTA and Eu is connected with a three-dimensional network structure formed by CNF and CC in a covalent bond mode. The CNFis cellulose nanofibers, the CC is carboxylated chitosan, the Eu is rare earth europium ions, and the TTA is sodium salt obtained after deprotonation of 2-thiophene formyl trifluoroacetone. The cellulose nanofibers are combined with the carboxylated chitosan through hydrogen bonds. The rare earth europium ions are coordinated with carboxyl functional groups of the carboxylated chitosan, so that the rare earth europium ions are stably connected with a hydrogel network skeleton in a covalent bond mode, and the TTA is further coordinated with the rare earth europium ions to form an excellent redfluorescent hydrogel material which shows excellent compressive strain performance and can be used as an environment-friendly recognition material.

The invention discloses a preparation method of a thenoyltrifluoroacetone (HTTA) modified rare earth hydroxide nano-sheet fluorescence reinforcing material. The preparation method comprises the following steps of dissolving yttrium nitrate hexahydrate into deionized water firstly, then adding europium nitrate hexahydrate, and performing uniform mixing; dropwise adding dilute ammonia water, and regulating a pH value of the solution to 7.5; putting the solution in a microwave field, performing continuous microwave treatment for 20 min in the N2 protection atmosphere, performing air pump filtration, water washing and washing with ethanol on a product after microwave treatment, and then putting the product in a vacuum drying tank at the condition with the temperature being 35 DEG C for dryingand grinding to obtain a dry powdery rare earth hydroxide hydrate; and then performing ion exchange, ultrasonic treatment and modification on the dry powdery rare earth hydroxide hydrate to obtain theHTTA modified rare earth hydroxide nano-sheet fluorescence reinforcing material. According to the preparation method, by utilizing the antenna effect of a ligand, the energy absorbed by the ligand istransferred to rare earth ions, so that the fluorescence performance of a composite is improved by an order of magnitude.

The invention discloses a method for repairing heavy metal contaminated soil. The method relates to the technical field of soil remediation, and comprises the following steps: (1) taking heavy metal mixed contaminated soil, putting the heavy metal mixed contaminated soil into a high-temperature and high-pressure reaction kettle, adding an organic solvent into the soil, introducing carbon dioxide gas, and heating and pressurizing the carbon dioxide gas to a supercritical state of carbon dioxide, and (2) spraying 2-thiophenyltrifluoroacetone into the high-temperature and high-pressure reaction kettle to leach the soil for a period of time. Through combined use of supercritical carbon dioxide and 2-thiophenyltrifluoroacetone (TTA), chelating of Cu, Zn, Ni and other heavy metal ions in soil isachieved, and the effect of soil remediation is achieved.

The invention discloses a low-waveband ultraviolet absorption antibacterial light conversion film and a preparation method thereof. The light conversion film comprises the following components: 89.97-99.99 parts of polymer resin, 0.001-0.003 part of a light conversion agent, 0-5 parts of an anti-aging agent, and 0-5 parts of an anti-fog drop agent. The general molecular formula of the light conversion agent is [Eu(TTA)xPhen(beta-T)(3-x)], wherein TTA is 2-thenoyltrifluoroacetone, Phen is 1,10-phenanthroline, and (beta-T) is Chamaecyparis pisifera oleyl alcohol. By introducing the novel light conversion agent into the light conversion film, the absorption capacity of the light conversion film to low-waveband ultraviolet light is enhanced, the waveband ultraviolet light is converted into redlight required by plant photosynthesis, growth of crops is facilitated, in addition, the light conversion film is remarkable in antibacterial effect, and growth of pathogenic microorganisms can be effectively inhibited.

The invention discloses a rare earth ternary complex with a chemical formula of RE(TTA)3 L question mark nH20, wherein, the RE refers to rare-earth ions, the TTA refers to thenoyl trifluoro acetone, the L refers to aromatic carboxylate, the chemical structural formula thereof are shown as right, and n equals to 0 to 7. The rare earth ternary complex has good chemical stability and thermal stability, endures high temperature of 320 DEG C and can be used, stored and transported at normal temperature; the bacteriostatic circle diameters of the rare earth ternary complex against colibacillus and Staphylococcus aureus are all equal to or larger than 20mn, and the minimal inhibitory concentration thereof is lower than 200mug question mark ml , especially the rare earth ternary complex with particle size ranging from 10nm to 300nm has stronger antibacterial action and more obvious antibacterial effect, and the antibacterial capacity in unit dosage of the rare earth ternary complex is better than that of any single ligand. Therefore, the rare earth ternary complex can be used for preparing novel antibacterial materials and is applied to the environmental purification field. In addition, the rare earth ternary complex is characterized by simple preparation method, mild reaction condition and small environmental pollution caused by manufacturing links.

The invention provides a rare earth europium composite fluorescent material using sodium acetate as a matrix, and a preparation method thereof, wherein the europium coordination compound composite fluorescent material is prepared by using europium ions as a luminous body, using triphenyl phosphine oxide (TPPO) and 2-thenoyltrifluoroacetone (TTA) as organic ligands and using sodium acetate as a matrix through a reaction under set conditions, and is characterized. According to the invention, the cost of the luminescent material is reduced, and the prepared material is long in service life, highin quantum yield, high in fluorescence intensity and good in fluorescence performance.

The invention discloses a high-sensitivity rare earth doped time-resolved fluorescent nanoparticle, and a preparation method and application thereof, and belongs to the technical field of chemistry and materials. According to the fluorescent nanoparticle, LaF3 is used as a hexagonal phase matrix material, Eu<3+> is used as a luminescence center to be doped into a hexagonal phase LaF3 matrix, and a sensitizer 2-thenoyltrifluoroacetone and 1, 10-phenanthroline are coordinated with Eu<3+>. The method comprises the following steps: dropwise adding an NH4F aqueous solution into a mixed aqueous solution of LaCl3 and EuCl3, and then adding an alcoholic solution of 2-thiophenoyl trifluoroacetone and an alcoholic solution of 1, 10-phenanthroline. According to the invention, TTA is adopted as the sensitizer, Phen is adopted as a non-water auxiliary ligand, resonance energy transfer between TTA and Eu<3+> ions is utilized, and Phen replaces a fluorescence quenching group -OH to generate strong coordination with the Eu<3+> ions, so that the fluorescence of the nanoparticles is effectively enhanced.