60results about How to "Adjust solubility" patented technology

The present invention provides processes for fixation of biological tissue and / or post-fixation treatment of such tissue that result in modified tissues with reduced susceptibility to in vitro calcification when used in prosthetic devices. The invention also relates to calcification resistant biological tissue and to methods of using such tissue.

An object of the present invention is to provide nickel cobalt manganese composite hydroxide particles having a small particle diameter and a uniform particle size distribution, and a method for producing the same.[Solution]A method for producing a nickel cobalt manganese composite hydroxide by a crystallization reaction is provided. The method includes: a nucleation step of performing nucleation by controlling a pH of an aqueous solution for nucleation including metal compounds containing nickel, cobalt and manganese, and an ammonium ion donor to 12.0 to 14.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard; and a particle growth step of growing nuclei by controlling a pH of an aqueous solution for particle growth containing nuclei formed in the nucleation step to 10.5 to 12.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard.

A sulfonic acid onium salt represented by the following formula (1) can be used as a superior radiosensitive acid generator for resist compositions. It is possible to form a good pattern by using a resist composition containing this sulfonic acid onium salt.In formula (1), R1 represents a monovalent organic group, and Q+ represents a sulfonium cation or iodonium cation.

A process for preparing a fluoropolymer by polymerizing one or more radically polymerizable monomers comprising at least one fluoroolefin monomer in the presence of a radical polymerization initiator and as case demands, an inactive fluorocarbon and chain transfer agent in a reaction field where at least one of components forming the reaction field is in a supercritical state. According to the preparation process, generation of unstable end groups of the polymer, a decrease in a purity and complicated post-treatment can be eliminated.

The invention discloses polyacrylate polymer terminated cyclodextrin polyrotaxane, which is characterized in that: the molecular formula is shown in the specifications; and the preparation method comprises the following steps of: preparing poly(pseudo)rotaxane physical gel from thiol polyethylene glycol and alpha-cyclodextrin; and reacting the poly(pseudo)rotaxane physical gel with an acrylate monomer under the action of an azodiisobutyronitrile radical initiator so as to connect long molecular chains of polyacrylate to two ends of the poly(pseudo)rotaxane, wherein the long molecular chains of polyacrylate serve as large-volume groups to prevent the cyclodextrin on a polyethylene glycol molecular chain from dropping off, so that the polymer terminated polyrotaxane is obtained. The number of the cyclodextrin passing through the polyethylene glycol molecular chain and the type and the length of the polyacrylate molecular chains at the two ends of the polyrotaxane can be adjusted conveniently by adjusting the using amount of the cyclodextrin and the type and the using amount of the acrylate monomer, so that the performance of the polyrotaxane can be adjusted conveniently. The polyrotaxane is a novel supermolecular system and can be applied to the fields of biodegradable materials, medicine carriers, sustained release materials, biosensors and the like.

A fluorine-containing sulfonic acid salt or a compound having a fluorine-containing sulfonic acid group, either of which having a structure represented by the following general formula (1), is provided. Such a salt or compound can act as a suitable photo-acid generator, and can form a resist pattern having excellent sensitivity, resolution and mask-dependence.[In general formula (1), R represents a substituted or unsubstituted linear or branched monovalent hydrocarbon group having 1 to 30 carbon atoms, a substituted or unsubstituted monovalent hydrocarbon group having 3 to 30 carbon atoms and a cyclic or a partially cyclic structure, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted monovalent heterocyclic organic group having 4 to 30 carbon atoms.]

Belonging to the field of organic optoelectronic materials and organic photoelectric conversion application, the invention provides a phenothiazine pure organic dye, a preparation method and application thereof in dye-sensitized solar cells. The phenothiazine pure organic dye has a phenothiazine group, different functional groups are introduced to the N position of the phenothiazine group, and the phenothiazine group is connected to a carbazole group through meta-benzene, and the phenothiazine pure organic dye has a general formula shown as the specification, The dye provided by the invention can be applied to dye-sensitized solar cell devices to achieve high photoelectric conversion efficiency. The synthesis and preparation method involved in the invention is simple and controllable, and is low in cost, and the cell devices thereof have high efficiency. The phenothiazine pure organic dye is expected to replace traditional heavy metal sensitizing agent dyes, and has the application prospect of commercial production.

The invention discloses a process for separating and recovering minim organic solvent from waste water using ion liquid consisting of, mixing hydrophobic ionic liquid with aqueous solution of organic solvent whose concentration is lower than 0.1-10 wt% by the volume ration of 1 : 1-10, fully stirring and depositing for stratification, gathering the organic solvent in the aqueous phase into ionic liquid phase, separating the ionic liquid phase, evaporating the organic solvent in the ionic liquid through decompression, thus achieving the goal of reclaiming organic solvent.

The invention provides an A-site Ba, Sr, Ca ions-doped SrCo0.8Fe0.2O3-delta-base perovskite oxygen permeable membrane material and application thereof, and relates to inorganic oxygen permeable membrane material, wherein, Ba, Sr and Ca elements are doped to the A-site of SrCo0.8Fe0.2O3-delta at the same time. The general formula of the material is BaxSr1-x-yCayCo0.8Fe0.2O3-delta, wherein, x is 0.1-0.9, and y is 0.1-0.9. In the invention, by adjusting the doping ratio of the three metal ions, the material forms a cubic perovskite structure; and studies show that the melting point of the material is lower than that of an A-site single-ion or dual-ion-doped perovskite material, and the material has stable structure and higher oxygen permeation quantity, thus being applicable to the fields such as oxygen permeable membrane sealing, pure oxygen separation, partial oxidation of methane, a solid oxide fuel cell cathode material and the like.

The invention relates to an ionic hydrate inhibitor which is prepared by dissolving an ionic liquid in a water solution, wherein the mass concentration of the ionic liquid is 0.005-0.01%; the ionic liquid is composed of imidazole cations and chloride ions; and the solvent is water. The hydrate inhibitor has the advantages of better inhibitory effect, low consumption and small influence by degree of supercooling, is easy to recycle and is more environment-friendly.

The invention discloses a method for realizing dispersion of an indissolvable drug in water. The method comprises the following steps: dissolving chitosan in ionic liquid to obtain a chitosan-ionic liquid system and then dissolving an indissolvable drug in the chitosan-ionic liquid system; and then putting the chitosan-ionic liquid system dissolved with the indissolvable drug into water to realizedispersion of the indissolvable drug in the water. The ionic liquid is 1, 3-dialkyl substituted imidazolium ionic liquid; the indissolvable drug comprises paclitaxel or a derivative thereof, and camptothecin or a derivative thereof. According to the method, a chitosan-ionic liquid system is used as a medium of the indissolvable drug, effective dispersion of the indissolvable drug in water can berealized, the steps are simple, and operation is easy and convenient. In addition, dispersion of insoluble drugs in water can be adjusted by designing and adjusting conditions such as the type of theionic liquid and the molecular weight of chitosan, so that targeted biological medicine application is realized.

Disclosed is a planographic printing plate material comprising an aluminum support and provided thereon, a lower layer and an upper layer in that order, wherein the lower layer contains a first alkali soluble resin, the upper layer contains a second alkali soluble resin and a light-to-heat conversion material, the second alkali soluble resin being a modified novolak resin having in the side chain a heterocyclic ring group containing both —(C═O)— and —NH— in the ring or a ureido group represented by the following formula (1), and wherein at least one of the upper and lower layers contains a third alkali soluble resin which is a modified acryl resin having in the side chain a heterocyclic ring group containing both —(C═O)— and —NH— in the ring or a ureido group represented by the following formula (1),—NHCONHR   Formula (1)

The invention provides a self-flowing meta-aramid and a preparation method thereof. The preparation method comprises the following steps: 1) dissolving m-phenylenediamine with sulfonic groups and the additive lithium chloride or calcium chloride in a solvent to prepare a solution, maintaining the temperature of the solution to be 80 to 100 DEG C, adding an m-phthalyl dichloride solution, decreasing reaction temperature and adding m-phthalyl dichloride into the solvent of m-phenylenediamine with sulfonic groups under the conditions of inert gas and rapid stirring in 1 to 8 min for a reaction; and 2) adding alkali into the solution obtained in step 1), allowing alkali to react with the solution and adding a quaternary ammonium salt solution for reaction, wherein synthesis reaction is finished after 5 to 7 h, a self-flowing meta-aramid material is obtained, and the self-flowing meta-aramid material has a molecular weight of 2000 to 40000 and a thermal decomposition temperature of 300 to 600 DEG C and can be dissolved in water and most organic solvents. Aramid fibers prepared from the self-flowing meta-aramid material have elongation at break of 2 to 4%, compressive strength of 0.01 to 1.00 GPa, tensile strength of 1000 to 6000 MPa and elastic modulus of 1 to 1.6 MPa. Polymerization in the invention is mild and has good controllability, the structure of quaternary ammonium salt is changed, and dissolving performance of a polymer can be adjusted.

The invention relates to a cotton package fertilizer and a fertilization method thereof, and belongs to the technical field of fertilizers. The cotton package fertilizer includes a base fertilizer, a seedling stage fertilizer, a bud stage fertilizer, a blossoming and boll-forming stage fertilizer, and a boll opening stage fertilizer; the base fertilizer and the seedling stage fertilizer each comprise 15-20 parts by weight of nitrogen, 15-25 parts by weight of phosphorus, 8-16 parts by weight of potassium and 1-5 parts by weight of an organic mass auxiliary material; the bud stage fertilizer comprises 15-25 parts by weight of nitrogen, 12-25 parts by weight of phosphorus, and 10-20 parts by weight of potassium; the blossoming and boll-forming stage fertilizer and the boll opening stage fertilizer each comprise 12-20 parts by weight of nitrogen, 15-23 parts by weight of phosphorus, 8-16 parts by weight of potassium and 1-5 parts by weight of an organic mass auxiliary material; the organic mass auxiliary material comprises humic acid. The package fertilizer has rich nutrient elements and has high utilization rate of nutrient substances. The fertilizers corresponding to growth stages are applied to cotton according to different growth stages of the cotton, the stress resistance of the cotton can be enhanced, the yield and quality of the cotton are improved, and the input and waste of the fertilizers are reduced.

The invention relates to diboron nitride bridge-linked bipyridine and an organic / high polymer material prepared from the diboron nitride bridge-linked bipyridine, and belongs to the field of polymer solar cell. In order to expand the system of a receptor material, a classical pyrene unit is used as a start point and a novel BN receptor unit is developed. The diboron nitride bridge-linked bipyridine provided by the invention comprises a NB unit which has multiple advantages: such as a planar structure is favorable for the ordered close packing of the material molecules and is capable of increasing the material carrier mobility; the BN coordination interaction has a strong electron withdrawing effect for reducing the energy level of the molecule; different lengths of the alkyl chains are introduced for adjusting the solubility of the materials; the diboron nitride bridge-linked bipyridine has functional reaction site, can be used for preparing the organic / high polymer material, and has very good application future when being applied to solar cells.

The invention provides a self-flowing meta-aramid and a preparation method thereof. The preparation method comprises the following steps: 1) dissolving m-phenylenediamine with sulfonic groups and the additive lithium chloride or calcium chloride in a solvent to prepare a solution, maintaining the temperature of the solution to be 80 to 100 DEG C, adding an m-phthalyl dichloride solution, decreasing reaction temperature and adding m-phthalyl dichloride into the solvent of m-phenylenediamine with sulfonic groups under the conditions of inert gas and rapid stirring in 1 to 8 min for a reaction; and 2) adding alkali into the solution obtained in step 1), allowing alkali to react with the solution and adding a quaternary ammonium salt solution for reaction, wherein synthesis reaction is finished after 5 to 7 h, a self-flowing meta-aramid material is obtained, and the self-flowing meta-aramid material has a molecular weight of 2000 to 40000 and a thermal decomposition temperature of 300 to 600 DEG C and can be dissolved in water and most organic solvents. Aramid fibers prepared from the self-flowing meta-aramid material have elongation at break of 2 to 4%, compressive strength of 0.01 to 1.00 GPa, tensile strength of 1000 to 6000 MPa and elastic modulus of 1 to 1.6 MPa. Polymerization in the invention is mild and has good controllability, the structure of quaternary ammonium salt is changed, and dissolving performance of a polymer can be adjusted.

The polyaryl ether ketone viscosity regulator is prepared with type-B3 monomer, diphenol monomer or phenol ended oligomer and potassium carbonate in certain proportion as main material, where the type-B3 monomer is 1, 3, 5-tri[4-(4-fluoro phenacyl) phenoxy], and diphenyl sulfone as solvent. The preparation process of the polyaryl ether ketone viscosity regulator includes mixing material, forming salt, prepolymerizing, condensation at 280-300 deg.c for 3.5-4.5 hr, and post-treatment. The present invention may regulate the dissolubility, heat performance and crystallization performance of super-branched polyaryl ether ketone via altering the structure and length of A2 unit. The polymer product of the present invention has excellent solvent resistance and corrosion resistance, and is suitable for use as the viscosity regulator in linear polyaryl ether ketone processing.

The invention discloses a memory storage device based on a carbon dot / organic polymer composite material. The memory storage device comprises a layer made from a carbon dot / organic polymer composite material, wherein the composite material is a compound of a carbon dot and organic polymer; the carbon dot is the heteroatom-doped carbon dot or the non-heteroatom-doped carbon dot; and the organic polymer is one selected from or is a compound formed by more than two polymers selected from polyvinyl alcohol, a polyvinyl alcohol derivative, poly(p-phenylene vinylene), a poly(p-phenylene vinylene) derivative, polyacetylene, a polythiophene derivative, polythiophene, a polythiophene derivative, fullerenes and a fullerene derivative. According to the invention, the memory storage device has excellent performances; the switch ratio reaches 105; the retention time is long; and the stability is high.

The present invention relates to a p-phenylene ethylene luminous polymer with twisted structure. It is characterized by that it is made up by introducing the bridged heptatomic heterocyclic monomer into the main chain of P-phenylene ethylene (PPV) and its derivative. Said invention can obviously raise blue luminous capability, and is suitable for preparing polymer LRD, optical pump and electric pump laser and semiconductor device of field-effect transistor, etc.

The invention belongs to the field of organic small molecule solar cells, and particularly relates to a D(pi-A)2 type small molecule donor material based on a pyrazine indole terminal electron acceptor and a preparation method and application thereof. An electron donating (D) unit of the D(pi-A)2 type small molecule is 3, 6-bis-(octylthio) thienothiophene (TT), a pi bridge unit is alkylated, oxyalkylated or thioalkylated thiophene or selenophene, an electron withdrawing (A) unit is a novel pyrazine indole derivative, and the small molecule donor material is applied to a solution processing type small molecule solar cell. PC71BM is used as a receptor, and the energy conversion efficiency of the bulk heterojunction solar cell reaches 7.31%. According to the invention, high-efficiency energyconversion of a small molecular donor material constructed based on a pyrazine indole derivative terminal receptor unit in a small molecular solar cell is realized.

The invention discloses a UV coating for cutting machining for 3C product glass screens and being soluble in alkali and a preparation method of the UV coating. Ink is prepared by the following components in percentage by weight: 25-40% of bifunctional polyester acrylates, 25-40% of styrene maleic anhydride copolymer resin, 2-5% of dipentaerythritol hexaacrylate, 2-5% of a trifunctional phosphate ester adhesive agent, 3-5% of an acrylic ester coupling agent, 10-20% of talcum powder, 1-2% of polytetrafluoroethylene wax powder, 1-2% of phthalocyanine blue, 4-6% of 184, 3-5% of TPO and 0.5-2% of an addition agent. When the prepared UV ink is applied to the 3C product glass screens, the adhesive agent does not need to be added during site operation, and when films are taken off, the films are dissolved into particulate precipitation to the bottom of an alkali-solution tank, the subsequent cleaning for glass machining is convenient and quick, and the condition that the taken films are adhered to glass due to large sizes, so that cleaning is troublesome can be avoided.

The invention discloses a process for separating and recovering minim organic solvent from waste water using ion liquid consisting of, mixing hydrophobic ionic liquid with aqueous solution of organic solvent whose concentration is lower than 0.1-10 wt% by the volume ration of 1 : 1-10, fully stirring and depositing for stratification, gathering the organic solvent in the aqueous phase into ionic liquid phase, separating the ionic liquid phase, evaporating the organic solvent in the ionic liquid through decompression, thus achieving the goal of reclaiming organic solvent.

The invention discloses a preparation method and an application of polycyclic aromatic hydrocarbon K-position imidazolyl-based organic semiconductor materials. The structural general formula of the synthesized materials is shown in the description; and in the general formula, Ar represents an aryl group or a substituted aryl group, and R represents an alkyl chain with non-uniform lengths. The structural design of the materials is characterized in that the position of a phenyl ring connected with imidazole belongs to a K(4,5) position, and the above connection is completely different from the connecting position (1,2) of routine compounds. The structural design of like compounds accords with a D-A-D (donor-acceptor-donor) structure, and can be well applied to organic solar battery devices to improve the performances of the devices.

The invention relates to a method for preparing an anti-scar coating film by using an electrostatic spinning method and a product and application thereof. The method combines a medicament for inhibiting cell fibrosis damage with the electrostatic spinning technology to obtain the coating film capable of inhibiting postoperative scars and skin wound scars of a laryngeal trachea, firstly, preparinga spinning solution, then adding carboxymethyl chitosan into the spinning solution at a concentration of 5-10mg / ml, and finally, preparing the anti-scar coating film by an electrostatic spinning method. The method adopts an electrostatic spinning method to prepare the nanofiber film, which has good flexibility and tensile strength, and is an excellent film coating material; According to the invention, the medicament can be slowly released through the nanofiber, and an ideal treatment effect can be achieved on scar prevention.

The invention relates to a pulse water diversion type fish roe hatching device. The device comprises a water tank (7), wherein a channel assembly higher than the water tank is arranged in the middle of the water tank (7) and comprises a water inlet channel located in the middle and water diversion channels (6) located in two sides, the water inlet channel is communicated with the water diversion channels (6) through water diversion ports (2) in the upper portions of shared side faces, and a main water inlet (1) is formed in the water inlet channel; a water distribution plate (10) is arranged in the water tank, and a hatching frame (4) is placed on the water distribution plate (10); the upper end of each siphon (3) is arranged in the corresponding water diversion channel (6) and downwards penetrates through the water distribution plate (10), and the tail end of each siphon (3) is located under the hatching frame (4); the upper end of each siphon (3) is in the shape of or similar to the shape of an arc which is bent downwards; the side face of the upper portion of the hatching frame (4) is communicated with an overflow channel (9) through an overflow port, the overflow channel (9) is provided with a water outlet pipe (5), and the water outlet pipe (5) allows water and fry to flow out.

The invention discloses a fluorescence emission material and an organic light-emitting device prepared from the fluorescence emission material. A thiophene / furan [2, 3-b] quinoxaline and tricyclic aromatic hydrocarbon fused high-efficiency blue fluorescence and other color light-emitting materials are constructed through molecular design. The luminescent wavelength of the material can be regulatedto 426nm and 457nm, and the absolute fluorescence quantum yield reaches 65% and 82% respectively. The material can provide beneficial supplement for commercial blue light materials.

The invention relates to a polymer positive electrode material for a lithium battery. Particularly, a main chain of the polymer positive electrode material contains a succinimide group to adjust the solubility and the dispersity of a polymer, the affinity with an electrolyte and a material accumulation morphology. A side chain of the polymer positive electrode material contains a piperidine oxide group, which can react with electrons and lithium ions in battery charge and discharge processes. According to the polymer positive electrode material, the safety performance and the stability of the battery can be improved, the molecular design is flexible, the production cost is low and the polymer positive electrode material can be used for industrialized production on a large scale.

The invention discloses an orthoester miscible pharmaceutical adjuvant, which relates to the field of pharmaceutical adjuvants and is mainly obtained by mixing and dissolving different orthoester compounds according to different proportions or mixing and dissolving orthoester compounds and biocompatible medical polymer materials according to different proportions. The chemical formula I of the orthoester compound is shown in the specification, wherein R represents hydrogen, methyl, ethyl, propyl, isopropyl, butyl or phenyl. The invention also provides a preparation method of the pharmaceutic adjuvant and a local sustained-release drug delivery preparation containing the adjuvant. The invention has the following beneficial effects: the fluidity of the orthoester miscible pharmaceutical adjuvant is adjustable; the degradation rate is adjustable, and the drug release rate is adjustable; a good solvent, which can dissolve small molecule and protein drugs; local injections, cream and ointment can be prepared; the biological compatibility is good, the metabolism is clear, and the clinical conversion use is easy.

The invention discloses a polylactic acid oriented microcellular foaming material and a preparation method thereof. The method comprises the following steps: (1) mixing polylactic acid A with polylactic acid B to obtain a mixture, adding an antioxidant again and then performing vacuum drying for 6 hours to 8 hours; (2) putting the obtained product obtained in the step (1) in an extruder and performing granulation, performing vacuum drying for 8 hours to 9 hours to obtain granules, and then performing hot pressing molding; (3) pre-heating the product obtained in the step (2), and stretching theproduct until the stretch multiplying power reaches 600 percent to 1200 percent, and cooling the product to a room temperature; and (4) swelling the product obtained in the step (3) for 50 minutes to60 minutes in a supercritical carbon dioxide environment, and then releasing pressure at a velocity of 10 MPa / min to 12 MPa / min, and cooling the product to a room temperature to obtain the microcellular foaming material. According to the microcellular foaming material prepared by the method disclosed by the invention, mutual existence of orientation and microcellular structure is realized, and the mechanical performance of the material is improved while the density of the product is reduced.