54 results about "Benzodifuroxan" patented technology

The invention relates to a semiconductor conjugated polymer and a preparation method thereof. The invention discloses a solution-processable polymer semiconductor material and particularly relates to a semiconductor conjugated polymer based on two-dimensional conjugated dibenzothiophene and (2-oxyindole-3-subunit)dibenzofuran-diketone and preparation thereof. The synthesized semiconductor conjugated polymer has wide absorption peak which covers visible light, even extends to a near infrared region; in addition, the synthesized semiconductor conjugated polymer has low lowest unoccupied molecular orbital (LUMO) energy level and can replace fullerene derivative (PCBM) to serve as a photovoltaic receptor material applied to the organic photovoltaic field. The introduced side chain serves as a solubilized alkyl chain. The semiconductor conjugated polymer prepared by the method can be subjected to solution processing, and has a certain application prospect in the organic photovoltaic field.

The invention relates to novel polymers containg repeating units based on benzodifuran, benzodipyrrole or benzodithiophene, monomers and methods for their preparation, their use as semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, and to OE and OPV devices comprising these polymers.

Colorants comprising a chromophore having two methine moieties attached to a benzodifuranone backbone, wherein said moieties optionally have at least one poly(oxyalkylene) chain, preferably at least two such chains attached thereto are provided. Such colorants exhibit excellent thermal stability, effective colorations, excellent low extraction rates, and effective lightfastness levels, particularly when incorporated within certain media and / or on the surface of certain substrates, particularly polyesters. The optional poly(oxyalkylene) chains also increase the solubility in different solvents or resins thereby permitting the introduction of such excellent coloring chromophores within diverse media and / or on diverse substrates as well as provides a liquid colorant which facilitates handling. Compositions and articles comprising such colorants are provided as are methods for producing such inventive colorants.

The invention discloses a two-dimensional conjugated dibenzofuran conjugated polymer photoelectric material and a preparation method and application thereof. The polymer has a structural formula as shown in formula I, wherein A1, A2, R1 and R2 independently represent any one of the following groups: hydrogen, C1-C30 alkyl group, C1-C30 alkoxy group, cyan group, nitro group, ester group, aryl group, aralkyl group, halogen, alkylogen group, heteralkyl group, alkenyl group, and aryl group substituted by a substituent of a single bond, a double bond, a triple bond or combination thereof; Ar1, Ar2 and Ar independently represent any one of the following unsubstituted groups or groups containing a substituent: vinylidene group, ethynylene group, single ring arylene group, double ring arylene group, arylene group containing at least three rings, single ring heteroarylene group, double ring heteroarylene group, and conjugated units of heteroarylene group containing at least three rings, and n is a natural number between 5 and 500. The polymer material disclosed by the invention can be applied in the photoelectric field such as organic solar batteries and the high-mobility field effect tube field. (Formula I).

The present invention provides benzodifuran imidazoline derivatives and benzofuran imidazoline derivatives for lowering intraocular pressure and providing ocular neuroprotection.

The invention relates to novel polymers containing repeating units based on benzodifuran, benzodipyrrole or benzodithiophene, monomers and methods for their preparation, their use as semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, and to OE and OPV devices comprising these polymers.

The invention relates to an organic fuel additive. The organic fuel additive comprises, by mass, 25-40 parts of alcohol organics, 15-18 parts of benzodifuranone, 10-15 parts of nonyl phenol, 8-12 parts of polyethylene glycol, 10-16 parts of dichloroethane, 10-15 parts of naphtha, 18-22 parts of nitrotoluene and 60-70 parts of deionized water. The organic fuel additive has the advantages that the organic fuel additive has effective chemical effect, is used for cleaning a whole fuel system, is applicable to a new direct-injection fuel system, and can be used in any types of engines such as gasoline engines and diesel engines to move sediments from combustors and intake valves; only by pouring the organic fuel additive into a fuel tank, halt is avoided effectively, fuel combustion efficiency and power are improved, and emission is reduced.

The invention discloses a two-dimensional conjugated dibenzofuran conjugated polymer photoelectric material and a preparation method and application thereof. The polymer has a structural formula as shown in formula I, wherein A1, A2, R1 and R2 independently represent any one of the following groups: hydrogen, C1-C30 alkyl group, C1-C30 alkoxy group, cyan group, nitro group, ester group, aryl group, aralkyl group, halogen, alkylogen group, heteralkyl group, alkenyl group, and aryl group substituted by a substituent of a single bond, a double bond, a triple bond or combination thereof; Ar1, Ar2 and Ar independently represent any one of the following unsubstituted groups or groups containing a substituent: vinylidene group, ethynylene group, single ring arylene group, double ring arylene group, arylene group containing at least three rings, single ring heteroarylene group, double ring heteroarylene group, and conjugated units of heteroarylene group containing at least three rings, and n is a natural number between 5 and 500. The polymer material disclosed by the invention can be applied in the photoelectric field such as organic solar batteries and the high-mobility field effect tube field. (Formula I).

The invention relates to an efficient fuel additive, comprising the following components according to parts by weight: 11-19 parts of hydrogenated carbonyl phenol, 6-15 parts of ferrocene, 8-10 parts of merphos, 10-14 parts of polyethylene glycol, 9-11 parts of benzodifuran, 4-16 parts of nonylphenol, 3-5 parts of dinitrogen ethane, 15-20 parts of naphtha and 40-50 parts of deionized water. The efficient fuel additive has effective chemical action for clearing an overall fuel system, is applicable to a new direct-injection fuel system, may be used in any types of engine such as gasoline engine and diesel engine to remove precipitate from a combustor and an intake valve, may be poured into a fuel tank to effectively prevent a halt, improving fuel combustion efficiency and horsepower and reducing emission.

The invention discloses an A-D-A conjugated molecule of a seven-fused-ring unit based on dibenzofuran. The seven-fused-ring unit based on dibenzofuran serves as an electron-donating core, and the design of an electron withdrawing unit at a terminal is changed to synthesize a series of brand new A-D-A conjugated molecules good in solubility and good in heat stability. Experiments prove that the material has high visible light absorption capability, high charge transfer performance and a proper electron energy level, and is suitable for being applied to preparing organic solar cells as electrondonors or electron acceptor materials.

The invention discloses a new green synthesizing process for a ketocoumaran compound. The synthesizing process comprises the following steps: in the absence of a solvent, performing condensation reaction of a mandelic acid compound and hydroquinol under the action of a little amount of acid catalyst to obtain a full condensed intermediate, wherein the acid catalyst is selected from one of 10 to 37 percent concentrated hydrochloric acid, 60 to 98 percent concentrated sulfuric acid, fuming sulfuric acid, 80 to 98 percent phosphoric acid, polyphosphoric acid, p-toluenesulfonic acid, trifloromethanesulfonic acid, benzoic acid, ammonium acetate, ammonium chloride, KF, TiC14, NiCl2, CuSO4, Cu(OAc)2, ZnCl2, AlCl3, Fe(NO3)3, FeCl3 and SnCl2; and performing oxidation reaction of full condensed intermediate under the action of an oxidant to obtain a final product ketocoumaran compound. The synthesizing process of the invention is simple, and has low energy consumption and little environmental pollution.

A nitrobenzodifuroxan compound having the chemical structure of:wherein two of the R1, R2, R3 and R4 comprise oxygen or are absent, and only one of R1 or R2 is present, and only one of R3 and R4 is present, and wherein x is hydrolyzed or hydrolyzable. The salt of the hydroxynitrobenzodifuroxan of this compound is useful in explosive compositions.