84 results about "Bromine atom" patented technology

The invention relates to the field of sealing materials, in particular to a butyl rubber sealing material and a preparation method thereof. Comprising the following components in parts by weight: 50-70 parts of butyl rubber, 30-50 parts of a brominated isobutylene-p-methylstyrene copolymer, 30-50 parts of carbon black, 8-12 parts of an alkyl phenolic resin vulcanizing agent, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of an anti-aging agent and 5-10 parts of a plasticizer. The butyl rubber provides ideal air tightness and heat aging resistance, bromine atoms are introduced into the brominated isobutylene-p-methylstyrene copolymer, co-vulcanization with the butyl rubber is achieved, it is ensured that a uniform and stable co-crosslinking network can be formed between the two rubber molecules, and the service life of the rubber is prolonged. The alkyl phenolic resin vulcanizing agent can form a C-C bond with high bond energy with two rubber molecules, so that the thermal aging resistance of the butyl rubber sealing material is effectively improved, the compression set is reduced, and the butyl rubber sealing material with excellent performance is prepared.

The invention relates to the technical field of power cables, and provides a flame-retardant power cable and a preparation method thereof. The flame-retardant power cable comprises a conductor, an insulating layer and a sheath layer which are sequentially arranged from inside to outside, and the sheath layer is prepared from, by weight, 40-60 parts of polyethylene, 60-80 parts of ethylene-vinyl acetate copolymer, 8-10 parts of compatilizer, 3-5 parts of auxiliaries, 15-20 parts of filler and 60-70 parts of flame retardant. The flame retardant is prepared from magnesium hydroxide, antimony trioxide, hydrated zinc borate and an aromatic bromine-containing compound in a mass ratio of 45: 8: 12: (25-30), and the number of bromine atoms of the aromatic bromine-containing compound is 6-8. According to the technical scheme, the problem of insufficient flame retardant property of the power cable in the prior art is solved.

The invention provides a synthesis method of a thioether ligand and a palladium-catalyzed 2-aryl indole compound, and designs an application of the biphenyl thioether ligand and a palladium catalyst in preparation of the 2-aryl indole compound. Indole and arylboronic acid are subjected to a reaction under the action of a palladium catalyst and a biphenyl sulfide ligand, and the structural formula of the biphenyl sulfide ligand is shown in the specification. Ar is phenyl, furyl, thienyl, naphthyl or phenyl substituted by one or more substituent groups; r1 is methyl, methoxyl, fluorine atom, chlorine atom, bromine atom or methyl ester group; r2 is the same or different and is methyl, ethyl, isopropyl, isobutyl, cyclohexyl, benzyl, n-butyl or n-hexyl; r3 is alkoxy, alkylthio, substituted amino or halogen; the palladium catalyst is a divalent palladium compound.

The invention provides a series of polybenzyl bromide or polybenzyl iodide-based monomolecular resin photoresists as well as a preparation method and application thereof. The monomolecular resin can be used as a main body material of the photoresists. The raw materials are cheap and easily available, and the synthesis process is simple. According to the compound disclosed by the invention, adamantane is taken as a core unit, a plurality of benzyl bromide or benzyl iodine groups, adamantane and a benzene ring are externally connected, and bromine atoms or iodine atoms are additionally introduced, so that the sensitivity and the etching resistance of the photoresist can be improved to the maximum extent.

The invention discloses a preparation method of mesophase pitch regulated and controlled by plasma-assisted directional bromination and catalytic debromination, and belongs to the technical field of high-value utilization of heavy oil and preparation of advanced carbon materials. The method comprises the following steps: (1) by taking aromatic hydrocarbon-rich heavy oil as a raw material, carrying out low-temperature plasma-assisted liquid-phase bromination reaction, and directionally introducing bromine atoms on an aromatic ring as activation and orientation sites, so as to construct bromination modified linear precursor asphalt; (2) carrying out supported metal hydride catalytic debromination-directional polycondensation reaction to synchronously realize total removal of bromine atoms, linear coupling between aromatic rings and improvement of molecular planarity, so as to prepare pre-mesophase pitch; and (3) carrying out heat treatment in a strong and uniform magnetic field, and enabling the liquid crystal state molecules to be highly and orderly arranged along the direction of the magnetic field by virtue of the orientation effect of the magnetic field on the pi electron cloud, so as to finally form the spinnable mesophase pitch with a wide-area streamline structure. The method realizes full-chain accurate regulation and control from molecular structure design to macroscopic orientation, and the prepared mesophase pitch has the characteristics of high anisotropic content (greater than 98%), moderate softening point (260-300 DEG C), highly ordered molecular arrangement and low quinoline insoluble content (less than 0.1%). The process is novel, and a brand new path is provided for preparing the high-performance mesophase pitch.

The invention relates to a preparation method of alpha-bromo-carboxylic acid. The method comprises the following steps: under the protection of nitrogen, dissolving a malonic acid substrate, N-bromosuccinimide (NBS) and pyridine in a reaction solvent, and reacting for 1 hour at 50 DEG C under the irradiation of blue light; and separating the crude reaction product through column chromatography or preparative plate chromatography to obtain the target delta-bromo-carboxylic acid compound. The method has the advantages of mild reaction conditions, simple operation, easily available raw materials, low cost, and good functional group compatibility and substrate universality. In the obtained product, due to high reaction activity of bromine atoms, the bromine atoms can be further derived into various alpha-heteroatom substituted carboxylic acids, and the product has application potential in the fields of synthetic chemistry, drug research and development and the like.

A refrigerator oil composition which is used together with a refrigerant that contains an unsaturated fluorinated compound having a carbon-carbon unsaturated bond represented by general formula (I): C2FpR4-p (I) [in general formula (I), R each independently represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, and p is an integer of 1-3], in which R represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, and p represents an integer of 1-3], R represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, and p represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom. A refrigerator oil composition containing a base oil (A), an epoxy compound (B), and a terpene compound (C), the epoxy compound (B) being an aliphatic epoxy compound (B1) or an alicyclic epoxy compound (B2), the total content of the epoxy compound (B) and the terpene compound (C) being 4.0 mass% or more based on the total amount of the refrigerator oil composition.

The present application relates to a kind of electrolyte additives and its preparation method, belong to electrolyte technical field;The present application uses propenyl-1,3-sulfonic acid lactone as raw material, using the double bond of propenyl-1,3-sulfonic acid lactone and the amino group of 4-amino-2-(trifluoromethyl) thiophene occurs Michael addition reaction under the catalysis of 1,8-diazabicyclo (7-ene) Undecane, obtain the intermediate with tertiary amine structure, then through the quaternary ammonium salt reaction of tertiary amine structure of intermediate and bromo atom of ethyl bromoacetate, obtain additive, the additive of the present application and phosphate ester additive are compounded to obtain electrolyte additive, the present application is modified by propenyl-1,3-sulfonic acid lactone, introduce fluorinated alkyl, effectively reduce intermolecular force, weaken the dependence of electrolyte viscosity on temperature, improve the ionic conductivity of electrolyte under low temperature condition.

The present application relates to pyrazole derivatives and their use in pesticides, in particular their use in the prevention and treatment of plant diseases caused by fungi. The structure of the pyrazole derivatives is shown in (I): wherein R1 is at least one of fluorine atom, chlorine atom, bromine atom, methyl, methoxy, difluoromethyl, trifluoromethyl, trifluoromethoxy; R2 is difluoromethyl or trifluoromethyl; X is nitrogen atom or oxygen atom. The pyrazole derivatives disclosed in the present application have good inhibitory effect on plant pathogenic fungi and can be applied to the prevention and treatment of plant diseases caused by fungi.

The invention discloses a bowl-shaped phosphine ligand as well as a preparation method and application thereof, and relates to the technical field of organic compounds and synthesis, non-planar phosphorus atoms are introduced into a planar conjugated system, a phosphine ligand with a concave structure is innovatively constructed, and spiral chirality is given to the phosphine ligand, so that a novel chiral phosphine ligand is obtained. Bromine atoms introduced in the design provide key sites for subsequent functionalization, coupling with various functional group reagents can be carried out through a classical Suzuki reaction, the modification potential of the ligand is remarkably enhanced, rapid construction of a diversified phosphine ligand library is facilitated, and the phosphine ligand library is used for various catalytic reactions. In addition, rich benzene ring units in the structure of the ligand endow the ligand with strong stacking capacity, so that the ligand shows good application prospects in the application fields of supramolecular self-assembly materials, molecular cages, catalyst loading and the like.

There is provided a method for storing fluoroalkene in which, even when stabilizers for suppressing reactions of fluoroalkene are not added, the reactions of the fluoroalkene hardly occur and the purity of the fluoroalkene hardly decreases during storage. Fluoroalkene having a bromine atom or an iodine atom in the molecule is at least one type of fluoroethylene represented by a first general formula C2HpFqXr and fluoropropene represented by a second general formula C3H3FtXu (X represents a bromine atom or an iodine atom), and contains or does not contain at least one type among manganese, cobalt, nickel, and silicon as metal impurities. When any of the foregoing is contained, the fluoroalkene is stored in a container with the total concentration of the manganese, the cobalt, the nickel, and the silicon set to 1000 ppb by mass or less.

The present application relates to the field of cell analysis related to cell biology, in particular to a kind of derivatization reagent and its application in the method for identifying amino metabolites.The present application provides a new derivatization reagent 3-bromoquinoline succinimidyl ester, the derivatization reagent has bromine atom and quaternary ammonium group with natural positive charge, which can improve the response of labeled metabolites in mass spectrometry, and using the characteristics of natural isotopic distribution of bromine atom, the labeled metabolites can produce a pair of isotopic peaks with fixed intensity ratio and fixed m / z difference in mass spectrometry, thereby facilitating the identification of unknown metabolites.The living cells labeled by the derivatization reagent of the present application can be used for mass spectrometry, especially in the field of single-cell mass spectrometry, to improve the response of metabolites in direct injection process and facilitate subsequent identification, and make up for the blank of domestic related technology.

A resist composition containing a resin component whose solubility in a development solution changes under the action of the acid and a compound represented by General Formula (d0). In the formula, Ar is an aromatic ring; Xd is an iodine atom, a fluorine atom, a bromine atom or a fluorinated alkyl group; Rd is a substituent; nd is an integer of 1 or more as long as the valence allows, and md is an integer of 0 or more as long as the valence allows; Ld is a single bond or a divalent linking group; m is an integer of 1 or more, and Mm+ is an m-valent cation

This catalyst is for use in condensation of a carboxylic acid and an amine compound having an amino group or a substituted amino group in which one hydrogen atom in the amino group is substituted with a substituent. The catalyst comprises a compound represented by general formula (1) (in the formula, R1, R2, R3, and R4 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a nitro group, an amino group, a sulfo group, an alkyl group, or an acyl group, and X1 represents a hydrogen atom, a silyl-based protecting group, a sulfonyl-based protecting group, an alkyl group, an alkenyl group, an aralkyl group, or an acyl group). This amide compound production method comprises a step for obtaining an amide compound through condensation of the carboxylic acid and the amine compound by using the catalyst.

To provide a photosensitive colored composition less liable to cause wrinkles in curing, excellent in developability and pattern forming property and having high light shielding property.SOLUTION: The photosensitive coloring composition includes a colorant (A), alkali-soluble resins (B) including photosensitive alkali-soluble resins (B1), a polymerizable compound (C), a photopolymerization initiator (D), and a heat-curable compound (E). The coloring agent (A) contains a halogenated zinc phthalocyanine pigment (A1) having an average number of halogen atoms of 10-14 in one molecule, of which an average number of bromine atoms is 8-12 and an average number of chlorine atoms is 2-5, and a metal azo pigment (A2) containing a compound represented by formula (1) or a tautomer thereof and a compound represented by formula (2).SELECTED DRAWING: Figure 1

The application belongs to the field of lithium ion batteries, and particularly relates to a kind of flame-retardant electrolyte for lithium ion batteries and its preparation method. A kind of flame-retardant electrolyte for lithium ion batteries, characterized in that it comprises the following components: organic solvent, electrolyte and additive, the concentration of the electrolyte in the electrolyte is 0.5-1.5 mol / L, the mass of the additive accounts for 0.5-13% of the total mass of the electrolyte, and the additive is bromoether 1,2-bis(2-bromoethoxy)ethane. The application uses bromoether 1,2-bis(2-bromoethoxy)ethane (Br-DEE) which is a bromoether molecule with single substitution of bromine atom. By introducing the additive bromoether 1,2-bis(2-bromoethoxy)ethane (Br-DEE), the flame-retardant electrolyte for lithium ion batteries prepared has excellent flame-retardant effect when used in lithium ion batteries, and does not affect the electrochemical performance of lithium ion batteries. At the same time, the electrolyte preparation process is simple and low in cost.

Provided are: a thermoplastic resin having a high refractive index, a low b value, and high wet heat resistance; an optical lens using the thermoplastic resin; and the like. According to one embodiment, a thermoplastic resin containing a structural unit represented by general formula (1) is provided. (In formula (1), R1 and R2 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an alkyl group having 1 to 6 carbon atoms, a monocyclic or polycyclic aryl group having 6 to 36 carbon atoms, a monocyclic or polycyclic heteroaryl group having 5 to 36 ring atoms, an alkenyl group having 2 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or an aralkyl group having 7 to 17 carbon atoms, 1, 2, 3 or 4 of the ring atoms are selected from nitrogen, sulfur and oxygen, the other ring atoms are carbon, and X, a and b are respectively described in the specification. )

A method for producing an iodine-containing compound includes reacting a halogen-containing organic iodine compound and a compound containing a reactive carbon-carbon double bond in the presence of a compound of Formula (21) or Formula (22). Each of R21, R23 and R24 represents a hydrogen atom, an iodine atom, or an organic group having from 1 to 20 carbon atoms; R22 represents a hydrogen atom, an iodine atom, an organic group having from 1 to 20 carbon atoms, or a boron-containing group; R25 represents a hydrogen atom, an iodine atom, an organic group having from 1 to 20 carbon atoms, or a silicon-containing group; and each of A1 and A2 represents a hydrogen atom, a chlorine atom, a bromine atom, or an iodine atom.

The application provides a series of monomolecular resin photoresists based on polybenzyl bromide or polybenzyl iodine and a preparation method and application thereof, and the monomolecular resin can be used as a main body material of the photoresist. Raw materials are cheap and easy to obtain, and the synthesis process is simple. The compound provided by the application takes adamantane as a core unit, is externally connected with multiple benzyl bromide or benzyl iodine groups, and the core structure of adamantane and benzene ring and the introduction of bromine atoms or iodine atoms can maximize the sensitivity and etching resistance of the photoresist.

The embodiment of the invention discloses a pyrazole-based fund cyclic trinuclear complex, a synthesis method thereof and application of the pyrazole-based fund cyclic trinuclear complex in the field of X-ray imaging, relates to the technical field of metal-organic complex luminescent materials, and aims to overcome the defects of existing scintillator materials in practical application. According to the application of the pyrazole-based gold ring trinuclear complex in the field of X-ray imaging, the pyrazole-based gold ring trinuclear complex is used for preparing a scintillation screen material for X-ray imaging; the general structural formula of the pyrazolyl-based cyclic trinuclear complex is shown as follows: in the formula, R1, R2 and R3 are all substituent groups; the substituent group comprises at least one of methyl, ethyl, trifluoromethyl, carboxylic acid ethyl ester group, chlorine atom, bromine atom or iodine atom.

The application discloses a buried bottom interface material and a flexible perovskite solar cell prepared by the buried bottom interface material. The structural formula of the buried bottom interface material is as follows: or wherein X is Cl or Br. The buried bottom interface modification material can be prepared into an interface modification layer by spin coating or printing. The bromine atom on the benzene ring can form a strong hydrogen bond with the FA cation vacancy of the perovskite layer, and then can uniformly passivate the defects of the lower interface of the perovskite photovoltaic film, improve the crystal quality, make the contact between the perovskite layer and the hole transport layer more compact, and there is no gap, so that the efficiency and stability of the flexible device are improved.

[Problem] To provide a method with which an organic iodine compound, which is useful as a polymerization initiator or the like, can be produced in an efficient and industrially advantageous manner with good purity. [Solution] Provided is a method for producing an organic iodine compound represented by general formula (II) by reacting a tertiary halogeno compound represented by general formula (I) with an iodide salt in the presence of a Lewis acid. (In the formulae, X denotes a chlorine atom or a bromine atom, and R1 and R2 each independently denote an alkyl group having 1-6 carbon atoms or together denote an alkylene group having 2-6 carbon atoms. EWG denotes an electron-withdrawing group.)

The invention belongs to the technical field of organic pigments, and particularly relates to a phthalocyanine pigment and a preparation method and application thereof, the structure of the phthalocyanine pigment is as shown in the following general formula (1), wherein M is selected from any one of Al, Cu or Zn; z1-Z16 are respectively and independently selected from any one or more of a bromine atom, a chlorine atom, a hydrogen atom or a sulfo group; the average substitution number of the sulfo group is 0.1 to 2; the sulfo group has a structure as shown in a formula (2):-SO2-R1 (2); r1 is selected from-OH and-NHR2; r2 is selected from any one or more of alkyl, alkyl substituted by nitrogen or alkyl substituted by oxygen. The introduction of sulfo group destroys the stacking regularity of phthalocyanine molecules, and the aggregation tendency of the pigment is reduced from the molecular level, so that the phthalocyanine pigment with small particle size is obtained; the color filter prepared from the phthalocyanine pigment prepared by the invention has excellent contrast and heat resistance.

Provided are a material for a photoelectric conversion element for an imaging element, and the like, that contribute to producing a photoelectric conversion element that has a low dark current and excels in responsiveness.　A compound represented by formula (1) is used. In formula (1), R1-R13 are each independently a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a nitro group, a hydroxy group, a thiol group, an allyl group, a 6-30C monocyclic, linked, or condensed aromatic hydrocarbon group that may have a substituent, a 3-36C monocyclic, linked, or condensed heteroaromatic group that may have a substituent, or a group represented by formula (2). However, R5 and R6, and / or R7 and R8, are linked to each other to form a benzene ring, and form a group represented by formula (3).

The application provides a high-efficiency thermally activated delayed fluorescence host material and a preparation method and application thereof, belongs to the technical field of organic photoelectric materials, and is obtained by combining 5,7-dihydro-7,7-dimethylindeno[2,1-b]carbazole and 2-(3-bromophenyl)-4,6-diphenyl-1,3,5-triazine, has the advantages of simple synthesis method, easily obtained raw materials, stable material structure, easy storage, and the like. The synthesized thermally activated delayed fluorescence host material is applied to an OLED device, the bromine atom attached to the triazine fragment enhances single-triplet state exciton conversion, improves high-efficiency energy transmission to a guest light-emitting material, and thus improves device efficiency. Compared with a traditional host material CBP, the application has obvious advantages, and thus has a wide application prospect and is optimistic, and is expected to be widely applied in the fields of flat panel display and solid-state lighting.

To provide a method for producing an organic iodine compound, by which the organic iodine compound useful as a polymerization initiator, a synthetic raw material for various chemicals, or the like, can industrially advantageously be produced in a good yield and in good purity.SOLUTION: The method for producing the organic iodine compound represented by general formula (IV) comprises reacting a polyhydric alcohol represented by general formula (I) with a halogenocarboxylic acid represented by general formula (II) in the presence of an acid to obtain an ester compound represented by general formula (III) and reacting the ester compound with an iodide salt in the presence of a Lewis acid. (In the formula, L represents an n-valent organic group having 2 to 20 carbon atoms, X represents a chloride atom or a bromide atom, and R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms or together represent an alkylene group having 2 to 6 carbon atoms.). N represents an integer of 2 to 6. A represents a positive number of 0 or more and less than n, and b represents a positive number of more than 0 and n or less. Here, a + b = n. ) SELECTED DRAWING: None

The present application relates to a kind of triazine-based covalent organic framework material for high-efficiency visible light decomposition water hydrogen production and its preparation method, belong to triazine-based covalent organic framework material and photocatalytic water decomposition hydrogen production technical field. By 2-bromine p-benzenedimethanal and 4,4',4"-(1,3,5-triazine-2,4,6-triazyl) triphenylamine under vacuum condition and catalysis solvent hot polymerization reaction, bromine atom monosubstituted monomer is introduced into triazine-based covalent organic framework skeleton, can improve its crystallinity and optical property, improve the activity of photocatalytic water decomposition hydrogen production;And the preparation method of the triazine-based covalent organic framework material is simple, easy to operate, raw material is easy to obtain and low in cost, the crystallinity of the synthesized bromine atom monosubstituted triazine-based covalent organic framework material is high, optical property is excellent and photocatalytic performance is excellent, with good application prospect.

The invention relates to the technical field of polypropylene, and discloses a flame-retardant microcellular foamed polypropylene plate and a preparation method thereof.The polypropylene plate is prepared from polypropylene, modified antimony trioxide and an antioxidant according to the mass ratio of 100: (30-45): (1.7-2.2): (0.6-1); the preparation method comprises the following steps: carrying out extrusion molding on the raw materials in a twin-screw extruder, introducing carbon dioxide in a press vulcanizer, and carrying out pressure-maintaining foaming to obtain the flame-retardant microcellular foamed polypropylene plate. 2-(dicarboxymethyl) amino-4, 6-bis (2, 4, 6-tribromoaniline)-1, 3, 5-triazine contains a plurality of bromine atoms, is compounded with antimony trioxide to form a bromine-antimony flame retardant, contains a large amount of nitrogen element, can play a role of a charring agent, further improves the flame retardant property of polypropylene, and improves the limit oxygen index.

Provided is a method for producing an aqueous fluoroelastomer dispersion, the production method comprising: (1) preparing a fluoropolymer-containing first aqueous dispersion by carrying out a first polymerization of fluorine-containing monomer in a container in the presence of an aqueous medium and a polymerization initiator and substantially in the absence of fluorine-containing surfactant that lacks a functional group capable of reacting by radical polymerization; (2) removing the first aqueous dispersion from the container and diluting the removed first aqueous dispersion 3- to 40-fold to prepare a second aqueous dispersion, or diluting the first aqueous dispersion in the container 3- to 40-fold to prepare a second aqueous dispersion and removing the second aqueous dispersion from the container; and (3) preparing a fluoroelastomer-containing third aqueous dispersion by carrying out, in the same container as the container in which the first polymerization was performed or in a container different from the container in which the first polymerization was performed, a second polymerization of fluorine-containing monomer substantially in the absence of fluorine-containing surfactant that lacks a functional group capable of reacting by radical polymerization and in the presence of the second aqueous dispersion, a chain transfer agent having an iodine atom or a bromine atom, and at least one selection from the group consisting of monomers that provide a crosslinkable group containing an iodine atom, a bromine atom, or a cyano group.

The present application provides a material for a photoelectric conversion element for an image pickup element, and the like, which contributes to production of a photoelectric conversion element having low dark current and excellent responsiveness. A compound represented by the following formula (1) is used. In formula (1), R 1 ~R 14 each independently is a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a nitro group, a hydroxyl group, a thiol group, an allyl group, a monocyclic, bicyclic or fused ring aromatic hydrocarbon group having 6 to 30 carbon atoms which can be substituted, a monocyclic, bicyclic or fused ring heteroaromatic group having 3 to 36 carbon atoms which can be substituted, or a group represented by the following formula (2). Among them, at least one or more of R 1 ~R 14 in formula (2) is a group represented by formula (2).