169 results about "Carborane" patented technology

A compound represented by Formula 1 below:

(R₁)_a—CB—[Ar]_n—CB—(R₂)_b  <Formula 1>

• • wherein CB denotes carborane, Ar is a substituted or unsubstituted phenylene group, and a detailed description of R₁, R₂, a, b, and n is provided in the detailed description. An organic light-emitting diode including an organic layer including the compound has high luminous efficiency.

The invention discloses a new kind of carborane- silane- phenylacetylene polymer and the method for preparing the same. Said polymer employs methylchlorosilane, phenylacetylene, carborane and organic lithium agent as raw material, anhydrous tetrahydrofuran (THF) as dissolvent and preparing with protection of nitrogen. The invention moderates molar ratio between simple function group ethynyl compound and carborane to easily control molecular weight of polymer, crosslinking density and carborane content, and realizes purpose of adjustable polymer property. The invention is characterized by simple process and easy operation. The prepared polymer forms thermostable thermosetting material with excellent thermal oxidation performance by heat, light and chemical initiation. Said thermosetting material can be produced to ceramic structure by heating on air or inactive gas. The polymer can be used as base resin and thermo-stable coating for advanced complex material and for preparing ceramic pioneer body.

A crosslinked polymer and process of making it are disclosed. A copolymer having at least one alkyne group, carborane group, and alkylsiloxane group is reacted with a siloxane crosslinker in a hydrosilation reaction. This produces a crosslinked polymer where the crosslink sites are reacted alkyne groups.

The invention discloses a powder pre-lithiated silicon-based negative electrode material, a preparation method and application thereof. A lithium-containing carborane cluster compound coated silicon monoxide material is firstly prepared and obtained, then through segmented heating sintering, boron element in a lithium-containing carborane cluster compound is diffused into a silicon-based materialcontinuously, a part of silicon atoms are replaced to form displaced doping, and the vacancy current-carrying concentration is improved, so that the intrinsic electronic conductivity of the silicon material is improved. Moreover, in the high temperature sintering process, incompletely reacted lithium ions inside the lithium-containing carborane cluster compound react with silicon monoxide, and thebyproducts such as lithium metasilicate, lithium silicate and lithium oxide are further formed to realize pre-lithiation, so that the initial coulomb efficiency of the battery prepared from the material is improved. And then, a uniformly compact carbon layer is formed on the surface of the material through chemical vapor deposition, and the defect that the carbon layer formed by the carbonizationof the carborane cluster compound is relatively loosened and porous can be solved, so that the cycling stability of the material is further improved.

The invention discloses a method for preparing ultra-high heat resistant polyimide polymer. The method includes the following steps: dissolving aromatic-diamine containing carborane component and traditional aromatic dianhydride or aromatic dianhydride containing the carborane component and traditional aromatic-diamine into DMF or DMAc, carrying out ring opening polymerization to obtain polyamic acid; adding proper amounts of acetic oxide and pyridine into the obtained polyamic acid solution, stirring at room temperature for appropriate time, adding a proper amount of methyl alcohol to precipitate solid, and drying the solid to obtain polyimide containing the carborane component. According to the method provided by the invention, the 5% weight loss temperature of the prepared polyimide in nitrogen is greater than 600 DEG C, and that in the air is greater than 1000 DEG C, which are higher than those of the currently developed polyimide materials.

The invention provides a preparation method of carborane polyurethane resin. According to the method, carborane polyarylester, polyester polyol, isocyanate, carborane bisphenol and small-molecular polyols are used as raw materials, organotin is used as a catalyst, and the carborane polyurethane resin can be prepared by adopting a double-prepolymer method. The preparation method has the advantages of low reaction system viscosity, uniform mixing, easy temperature control, good and stable product quality and high yield. The polyurethane resin has excellent high temperature resistance property and mechanical performance, and can be used for researching a high-temperature-resistant adhesive and a composite material.

Polymers comprising residues of borane and/or carborane cage compound monomers having at least one polyalkoxy silyl substituent. Such polymers can further comprise one or more reactive matrices and/or co-monomers covalently bound with the cage compound monomer residues. Methods of making and applications for using such polymers are also disclosed.

A carborane-siloxane compound is provided having the repeat unit

Q contains any of —SiR₂—, —SiR₂—O—, —C≡C—C≡C—, carboranyl, and U′. Each R and R′ is alkyl, aryl, alkylaryl, haloalkyl, haloaryl, or mixtures thereof. Each U′ is derivable from hydrosilation of an alkenyl or alkynyl group. Each T is alkyl, aryl, alkylaryl, haloalkyl, haloaryl, mixtures thereof, —(O—SiR′₂)_xH, or the repeat unit. Each x and x′ is a positive integer. The compounds may be made be reacting a carborane-siloxane precursor having unsaturated end groups with a siloxane crosslinker in the presence of a hydrosilation catalyst.

The invention discloses a heat-resisting poly (silazane-siloxane) polymer, which has a molecular formula structure shown in a formula I, in the formula I, R1 is methyl or phenyl; R2 is methyl or phenyl; Z is carborane silicon alkyl, silicon arylene or alkyl phenyl silicone; and m is smaller than or equal to 100 and greater than or equal to 1, and n is smaller than or equal to 10 and greater than or equal to 3. The polymer has excellent thermal degradation stability and thermal-oxidative stability, can still keep certain strength under high-temperature condition, can be used as a matrix polymer of a heat-resisting sealing material, and has great application values in the fields such as an aerospace and the like. (FORMULA I).

Compositions comprising a polymer-containing matrix and a filler comprising a cage compound selected from borane cage compounds, carborane cage compounds, metal complexes thereof, residues thereof, mixtures thereof, and/or agglomerations thereof, where the cage compound is not covalently bound to the matrix polymer. Methods of making and applications for using such compositions are also disclosed.

The invention belongs to the field of organic light-emitting materials, and particularly discloses a carborane derivative. The structural formula is as follows: (img file='DDA0001282150470000011.TIF' wi='435' he='543' /), R1 and R2 is H or a derivative of phenanthrene, and R1 and R2 are not H together. The carborane derivative disclosed by the invention has the following advantages: through charge transfer emission and/or localized state emission, the emission wavelength of the compound can be accurately regulated, so that a series of white light molecules are obtained; by introducing the carborane group, luminescence quenching caused by the aggregation of solid state molecules is prevented, the absolute luminescence quantum yield is high, and the carborane derivative has good properties, such as good thermal stability and easy sublimation, and has actual application value.

The present invention is directed to low toxicity boronated compounds and methods for their use in the treatment, visualization, and diagnosis of tumors. More specifically, the present invention is directed to low toxicity carborane-containing porphyrin compounds with halide, amine, or nitro groups and methods for their use particularly in boron neutron capture therapy (BNCT), X-ray radiation therapy (XRT), and photodynamic therapy (PDT) for the treatment of tumors of the brain, head and neck, and surrounding tissue. The invention is also directed to using these carborane-containing porphyrin compounds in methods of tumor imaging and/or diagnosis such as MRI, SPECT, or PET.

The invention discloses a carborane-perylene diimide derivative and a synthesis method thereof, a sensing array based on the derivative and a preparation method and an application of the sensor array,and belongs to the technical field of small-molecular fluorescent sensing thin film materials. The carborane-perylene diimide derivative is placed in a solution, is assembled into a fiber structure with relatively large specific surface, and then is transferred to different substrate surfaces, so as to obtain the sensing array composed of a variety of fluorescent thin films; the sensing array canbe sensitive to sense six important drug gases, and drug samples have no need of any treatment; at the same time, through array combination, the interference of common interferents is eliminated thoroughly. The operation is simple, and the reaction conditions are mild. The prepared fluorescent sensing thin film has good stability and long service life, and is an excellent drug gas sensing thin film array. With combination use of the thin film and commercial fluorescent instruments, the drug gases can be sensitively detected. In addition, the drug gas special detection instrument can be developed through the device of the sensing thin film.

The invention discloses a carbazole-based carborane derivative material, and preparation and application methods thereof. The preparation method comprises the following steps: performing alkynylation on 9-(4-bromophenyl)-9-carbazole or 9-(3-bromophenyl)-9-carbazole by a Sonogashira coupling reaction to obtain 9-(4-acetenylphenyl)-9-carbazole or 9-(3-acetenylphenyl)-9-carbazole, and performing a reaction with carborane to synthesize a compound I or compound II. The invention gives out the specific conditions and illustrations on the reaction between the alkynyl derivatives of carbazole and the carborane, and the results show a high yield of the target products. The compounds are simple to prepare, the intermediates are low in cost, and the reaction processes are easy to control; and the products are easy to separate, have the advantages of high yield and high purity, and have potential application values in the aspects of sensors, electroluminescent devices, organic solar cells, organic field-effect transistors and the like. The carborane derivatives can be well applied to electrochemiluminescence (ECL), and can be used as a small-molecule biological fluorescent probe.

The invention relates to a silica aryne resin containing carborane unit in main chain framework and a preparation method thereof. The method comprises the following steps: preparing a silica aryne resin from diacetylene-benzene and dihalogenated siloxane by an alkynyl Grignard reagent process, and reacting decaborane with the silica aryne resin under the action of a Lewis base to prepare the silica aryne resin containing carborane unit in main chain framework. The silica aryne resin containing carborane unit in main chain framework is soluble in common organic solvents, and has excellent workability; the resin solidified substance has excellent heat resistance and thermal oxygen stability; and the fiber-reinforced composite material has excellent mechanical properties, and has wide application prospects in the fields of aerospace and the like.

A scintillating composition for detecting neutrons and other radiation comprises a phenyl containing silicone rubber with carborane units and at least one phosphor molecule. The carborane units can either be a carborane molecule dispersed in the rubber with the aid of a compatiblization agent or can be covalently bound to the silicone.

The invention discloses a method for synthesizing carborane polyarylester in a greenhouse and carborane polyarylester. The method is performed under the protection of inert gas and in a water-free and oxygen-free environment by using diacid chloride dissolved by low-molecular-weight halogenated hydrocarbon as an organic phase, using carborane diphenol dissolved by deionized water as an inorganic phase, using benzyl triethyl ammonium chloride and strong alkali as catalyst, slowly dropping the organic phase into the inorganic phase, and performing quick agitation after full dropping to obtain high-molecular-weight carborane polyarylester. Operation is performed at room temperature instead of high temperature at which the traditional carborane-containing polymer is synthesized, the safety and reliability are high, the molecular weight is great and the yield is above 75 percent.

The invention discloses carborane-containing adhesive resin with resistance to high and low temperature and a preparation method thereof. The resin is prepared by reacting a component A and a component B under the catalysis of dibutyltin dilaurate, wherein the component A is prepared by dissolving 1,7-dihydroxymethyl carbon boron in ethyl acetate, adding polyphenyl polymethylene polyisocyanate anddehydrated trimethylolpropane in batches, and carrying out reacting under the protection of argon; and the component B is prepared by reacting silicon-hydrogen-terminated organic silicon resin and methyl allyl polyether under the catalysis of chloroplatinic acid and the protection of argon. According to the invention, the characteristics of the two components of the polyurethane adhesive are utilized, carborane groups are introduced into the component A, siloxane groups are introduced into the component B, and the two groups are easily combined with each other in the form of covalent bonds through the curing reaction of the component A and the component B. The carborane-siloxane type polyurethane adhesive prepared by the invention has very high bonding strength on steel, aluminum, titanium alloy, carbon materials, ceramic materials and composite materials, can be used for bonding missile nose cone-shells, C-C composite materials of heat-resistant parts of hypersonic aircrafts and graphite structural parts, and has a good military application prospect.

A linear polymer comprising carborane, siloxane, and acetylene units, which may be cross-linked to a cured polymer and/or pyrolyzed to a ceramic.

Boron neutron capture therapy can utilize XyB20H17L where X is an alkali metal, y is 1 to 4, and L is a two electron donor such as NH3, and Na2B10H9NCO, among others. These borane salts may be used free or encapsulated in liposomes. Liposomes may also have embedded within their bilayers carboranes to increase the amount of delivered 10B and/or to increase the tumor specificity of the liposome.

The invention discloses a method for preparing a carborane-siloxane polymer under the catalysis of Lewis acid. The polymer is prepared by reacting closed dicarbadodecaborane (carborane for short), chlorosilane and alkyl lithium serving as raw materials, and an inert solvent serving as a reaction medium under the protection of inert gas in the presence of the Lewis acid serving as a catalyst. The method has the advantages of readily available raw materials, concise process flow, simple and easy operation, and easily controlled reaction conditions. The linear carborane-siloxane polymer is prepared by controlling the molar ratio and feeding sequence of the materials in the presence of the Lewis acid serving as the catalyst. The polymer can be used for preparing a low-temperature vulcanized heat-resisting adhesive and a sealant.

The present invention is directed to low toxicity boronated compounds and methods for their use in the treatment, visualization, and diagnosis of tumors. More specifically, the present invention is directed to low toxicity halogenated, carborane-containing 5,10,15,20-tetraphenylporphyrin compounds and methods for their use particularly in boron neutron capture therapy (BNCT) and photodynamic therapy (PDT) for the treatment of tumors of the brain, head and neck, and surrounding tissue. The invention is also directed to using these halogenated, carborane-containing tetraphenylporphyrin compounds in methods of tumor imaging and/or diagnosis such as MRI, SPECT, or PET.