205 results about "Thiophenate" patented technology

The invention relates to a donor-recipient typed conjugated polymer containing two thiofuran and pyrrole and the preparation method and applications thereof. Using a construction mode of donor-recipient typed co polymerization for preparing the conjugated polymer can absorb action spectrum, cover UV-Visible and near infrared region to fully use sunlight. The donor uses a constitution unit of two thiofuran and pyrrole with a good plane performance, high density of electron cloud and easy preparation. The preparation of the conjugated polymer is easy, with absorbing spectrum in the UV-Visible and near infrared region of 300 to1000nm and the energy transforming efficiency being 3 percent. The performances of prepared solar batteries are respectively: white light (light intensity of 100mW/cm<2> ) irradiating, the open-circuit voltage is equal to 0.37 to 0.54 V; the short circuit current is equal to 6.69 to 13.8mA/cm<2>; the packing factor is equal to 0.35 to 0.44; and the efficiency of energy transformation is equal to 1 to 3 percent.

A polyhydroxyalkanoate (PHA) having a desired configuration is produced using a raw material containing omega-(4-vinylphenyl)-alkanoic acid and (omega-substituted alkanoic acid in which a group having a ring structure selected from phenyl, thienyl, and cyclohexyl structures substitutes therefor on the end thereof by producing a PHA copolymer containing the corresponding 3-hydroxy-omega-(4-vinylphenyl)-alkanoate unit and the corresponding 3-hydroxy-omega-substituted alkanoate unit by making use of a microorganism capable of producing the PHA or by oxidizing a predetermined portion of the corresponding PHA.

The invention relates to a preparation method for polypyrrole/polythiophene derivative compound conductive high polymer material, which comprises the following steps: firstly, boron trifluoride diethyl ether and aether are blended, and then added with ionic liquid to obtain A solution; pyrrole and thiofuran derivative monomer are added into the A solution to prepare B solution; the B solution is added into an electrolytic cell equipped with three electrodes; and electrochemical polymerization is carried out under the protection of nitrogen; polymerized current density is 1-10 mA/cm2; a layer of uniform polypyrrole/polythiophene derivative complex film can be obtained on a working electrode after polymerization is finished; the working electrode is taken out for washing and dried in the temperature of 60 DEG C. The preparation method has the beneficial effects that the composite electrode material prepared by the invention has about 200 F/g of bulking value and an electrical potential widow with about 0-2.8 width in organic solvent, and still has higher specific capacity and better circulation stability when discharging in high power.

The present invention provides a conjugated polymer or oligomer having narrow band gap characteristic and side chain stereoregularity, and its preparation method. The conjugated oligomer or polymer has the following structure: R is a saturated alkyl long-chain substituent, m is an integer of 1 to 6, and n is an integer of 1 to 16 or an uncertain integer greater than 4. If n is an integer of 1 to 16, it is referred to the oligomer. If n is an uncertain integer greater than 4, with number average molecular weight of 1000 to 500000, it is referred to the polymer. The conjugated polymer and oligomer have the structural characteristic of the repeating unit containing the alternate benzthiadiazole electron acceptor group and the oligothiophene electron donor group, and have the typical electron donor-electron acceptor alternate structure, to bring the narrow band gap characteristic to the polymer and the oligomer; and alkyl substituents on the thiophene ring have unified direction to endow the polymer and the oligomer with side chain stereoregularity. The polymer and oligomer of special structure have excellent spectral properties, and are expected to have potentially wide range of applications in organic photovoltaic devices.

The bionic poisonless antifouling paint for ship is prepared with fluororesin, modified fluororesin alkaloid, peptide compound, solvent, ionic water, leveling agent, stuffing, pigment and assistant. The modified fluororesin is preparew with fluoric thiofuran, polyfluoroethylene, fluoric ethylene monomer and solvent and through reaction in the action of initiator. The alkaloid is extracted from marine life seaweed, and the peptide compound is extracted from sponge. The antifouling paint forms paint film on the bottom of ship and under the action of sea water the paint film surface with high crosslinking density and low adhering performance will exude alkaloid and peptide to prevent marine life from attaching. The paint may be also used in the surface treatment of marine drilling platform, underwater pipe, valve and other facilities.

A preparation method of Fe3O4@PEG@SiO2 artificial antibody for detecting thifensulfuron methyl comprises modifying the surface of Fe3O4 magnetic nanoparticles with polyethylene glycol 2000, coating the surface with SiO2 shell layer to form a core-shell-shell structure, diluting marker molecules in the SiO2 shell layer to form specific recognition site holes complementary with marker molecular structure, size and functionality so as to arrive at molecular selective recognition and detection for target analyses. The preparation method of the artificial antibody comprises the steps of first, preparing Fe3O4 magnetic nanoparticles, and modifying their surface with polyethylene glycol; second, adding the target molecule thifensulfuron methyl, a crosslinking agent and a catalyst, and hydrolyzing to obtain Fe3O4@PEG@SiO2 particles with surface-marked thifensulfuron methyl; third, diluting template molecule with a mixed solution of acetic acid and acetone having a volume ratio of 1:4 to obtain the Fe3O4@PEG@SiO2 artificial antibody with selective recognition marker molecules, the antibody having maximum saturated binding capacity of 41.28 mg/g for thifensulfuron methyl, the absorption rate reaches 0.45 mg/g.min within first 30 min which is 5.34 times and 3.46 times that of a non-marking method.

The present invention relates to herbicide composition of monosulfuron ester compound as well as its application, which is compounded with two-element or three-element from herbicide monosulfuron ester or its natrium salt (0.1 to 90 percent) as main active component, and other herbicide (0.1 to 85 percent) of ethyl carboxylic fluorine grass ether, Starane, thifensulfuron-methyl, tribenuron-methyl, 2,4D as well as its ramification, Prometrex prometryn, acetochlor, atrazine, triallate, metolachlor, bensulfuron-methyl or 2 armour 4 chlorin natrium etc., and the herbicide composition can be made into breast oil, wettable powder, soluble powder, water emulsion, microemulsion agent, aqua, suspending agent, microcapsule agent or water disperse particle agent by adding proper amount auxiliary agent and carrier accepted in agriculture. The composition can be used to prevent single and double cotyledon weed in wheat, corn and millet field.

The invention relates to a conductive silk fibroin material and a preparation method thereof. The preparation method mainly comprises the following steps: (1) insoluble treatment of silk fibroin material; (2) 2-((2,3-dihydrothieno[3,4-b][1,4]dioxene-2-yl)methoxy)acetic acid activation product graft modification of silk fibroin material subjected to insoluble treatment; and (3) in-situ oxidation polymerization of thieno[3,4-b]-1,4-dioxin-2-methanol on silk fibroin material surface subjected to graft modification. The method can be used for preparing the silk fibroin conductive composite material with the polythieno[3,4-b]-1,4-dioxin-2-methanol grafted on the surface; the surface sheet resistance is 0.9*10<5>-5*10<7>ohm; the preparation technique is simple and mild; and the obtained novel biological material has high application value, and especially can be used as a nervous tissue engineering material and a neural restoration material.

The invention discloses a preparation method of a double-pyran thiophene photochromic polymer and color-changing anti-counterfeiting printing ink thereof. The preparation method of the double-pyran thiophene photochromic polymer includes the following steps that a double-pyran thiophene photochromic dye is subjected to acetylation to introduce acetyl, then a carboxylation reaction is further conducted, and an intermediate with carboxyl is obtained; the intermediate and hydroxyl acrylate matter are subjected to an esterification reaction to introduce double bonds, then copolymerization with acrylic monomers is further conducted, and the double-pyran thiophene photochromic polymer is prepared. The color-changing anti-counterfeiting printing ink prepared based on the double-pyran thiophene photochromic polymer can be changed to be yellow rapidly and then gradually changed to be blue or purple under illumination of sunlight or ultraviolet light, and after illumination is removed, the printing ink recovers to be colorless. The anti-counterfeiting performance of the prepared color-changing printing ink is improved, authenticity can be recognized without any instrument, and universality of anti-counterfeiting means can be improved.

The invention discloses a carbonyl reductase (i)Ch (/i) KRED15 derived from Chryseobacterium ((i) Chryseobacterium (/i) (i) (/i) sp. CA49), and a coding gene thereof; the invention also discloses application of the carbonyl reductase as a biocatalyst in preparing a Duloxetine chiral intermediate ((i) S (/i))-N-methyl-3-hydroxy-3-(2-thienyl) propanamide. The enantiomer excess of products is greater than 99.9%. 20 g/L of substrate can be catalyzed by Ch(/i) KRED15 crude enzyme (2U/mL), and the conversion rate of over 99% can be obtained in 2 hours; a coenzyme circulation system is simple, and has large industrial application prospect.

The invention discloses an A-D-A type organic small molecular receptor containing thienocarbazole seven-membered condensed ring (DTCC) as well as a preparation method and application thereof. The structural formula of the small molecular receptor is as shown in I. An intermediate and a synthetic route of a target organic small molecular receptor provided by the invention have the advantages of being simple and efficient, low in price of raw materials, easily available in raw material, high in universality, good in repeatability and the like, and can be popularized and applied to synthesizing various DTCC-based A-D-A type organic small molecular receptors. The organic small molecular receptor has the advantages of being stable in structure, universe and easily available in raw material and relatively low in production cost. The organic small molecular receptor for preparing a non-fullerene polymer solar battery can obtain the energy conversion efficiency of about 4.8-6%, so that an excellent potential of the small molecular receptor applied to the organic solar battery is fully exhibited, and the receptor has certain actual application value.

The present invention discloses a bionical rare earth organic complex light conversion agent and a preparation method thereof, and the composition of the bionical rare earth organic complex light conversion agent is as follows: SmM<1-x>(TTA)L. The light conversion agent chooses the easily obtained, cheap samarium ion as a central ion, lanthanum La<3 plus>, gadolinium Gd<3 plus> and yttrium Y<3 plus> as heterocaryotic central ions, organic compound (Alpha-thenoyltrifluoroaceton) with the lowest excited triplet level matching the Sm<3 plus> excited level as a ligand and o-phenanthroline, 2,2'-bipyridyl, trioctylphosphine oxide, triphenylphosphine oxide, etc. as second ligands. The method for preparing the light conversion agent includes the following steps: dissolution, stirring and reaction, deposition, filtration, washing, drying, grinding and finished product, and the appearance of the product is white or light yellow. The light conversion agent provided by the present invention can convert ultraviolet light into red light with a wavelength between 620nm and 660nm, the emitting efficiency is high, the color purity is high, and the strongest emission wavelength is close to the position of the maximum absorption peak of chlorophylls (a, b), so the light conversion agent can meet the physiological requirement of the photosynthesis of plants.

The invention describes a herbicide, O, O-demethyl-1-(2, 4-dichlorophenoxy)ethylphosphate (HW02), processing stems and leaves as well as weeding combination, containing an active compound and a compound selected from the compounds: tribenuron, thifensulfuron, methsulfuron, chlorsulfuron, bensulfuron, isoproturon, fluroxypyr, quinclorac, mefenacet ,alachlor, aetochlor, butachlor and metolachlor. The herbicide and its combination are applied to effectively prevent and cure various weeds in dry land, especially cornfield and rice paddy as well as garden, tea garden and lawn. It also describes their preparation and weed processing method as well as application to processing stems and leaves.

The invention discloses a per-oxidized poly(3,4-ethylenedioxythiophene-graphite oxide (PEDOT/GO) modified electrode and an electrochemical detection method of the per-oxidized poly(3,4-ethylenedioxythiophene-graphite oxide (PEDOT/GO) modified electrode to pesticide imidacloprid. The invention relates to one modified electrode capable of being used for electrochemically detecting the pesticide imidacloprid; a per-oxidized PEDOT/GO composite material modified electrode is prepared by a synchronous electrochemical polymerization method and a subsequent per-oxidization process; the current response to the imidacloprid by the obtained electrode is enhanced obviously. The modified electrode has the advantages of high sensitivity, simplicity in operation, convenience in preparation, good stability and repeatability and the like when being used for detecting the pesticide imidacloprid.

The invention provides a PHA copolymer including at least a 3-hydroxy-ω-carboxyalkanoic acid represented by a formula (19) or (32) and simultaneously at least a unit represented by a formula (2) or a formula (3) in a molecule, a precursor PHA copolymer having a corresponding vinyl group or a corresponding alkoxycarbonyl group, a biosynthesis method thereof by microorganisms, and a method of producing a desired PHA copolymer from the precursor PHA copolymer: (wherein k, m, n are integers; R₁₈ represents H, Na, K, R27? represents (A); R₁ represents a substituent on a cyclohexyl group and represents H, CN, NO₂, a halogen atom, CH₃, C₂H₅, C₃H₇, CF₃, C₂F₅, or C₃F₇; R includes a residue including a phenyl structure or a thienyl structure; these being independent for each unit).

The present invention discloses a preparation method for an electro polymerization membrane comprising a thienyl mononuclear ruthenium complex, electrochemistry thereof, and photo electrochemical properties. A simple electrochemical method is adopted, so that a mononuclear ruthenium complex form a polymer membrane on an ITO electrode, and a test on electrochemical properties of the membrane shows that a 20-ring membrane aggregated by the polymer has good stability in an aqueous solution. A test on photoelectric properties of the membrane shows that in a negative bias voltage partial, the negative the bias voltage is, the larger the photocurrent of the membrane is, and when the bias voltage is 0 V, an extremely large photocurrent is also shown; and along with the increase of the bias voltage, the change range of the photocurrent is significantly smaller than the photocurrent in a bias voltage, and an excellent rectifying property is showed. Therefore, the electro polymerization membrane comprising the thienyl mononuclear ruthenium complex in the present invention has a broad application prospect in the field of energy conversion.

The invention relates to preparation method of a bis-thienyl pyrrolo-[3,4-c] pyrrole-1,4-diketone and (hybrid) arene copolymer, which belongs to the technical field of chemical preparation of high-molecular polymer materials. According to the preparation method, under an appropriate condition, bis-thienyl pyrrolo-[3,4-c] pyrrole-1,4-diketone as a raw material A and a dibromo-(hybrid) aromatic compound as a raw material B are directly react to obtain a target copolymer. Compared with the traditional method, the preparation method provided by the invention has obvious advantages, prevents the preparation link of an organic metal reagent, decreases the preparation steps, increases the overall yield, reduces the cost, prevents a great amount of toxic and harmful organic metal reagent wastes from being generated and is more conductive to the industrialized production.

The invention belongs to the technical field of organic photovoltaic materials, in particular to a preparation method and a film forming method of segmented copolymers with fullerene at a main chain. The segmented copolymers consist of fullerene, polyalkoxylated thiofuran and polylactic acid, and the segmented copolymers can automatically form micro-phase separation structures under the controllable dimension in the film forming process, so electron hole pairs are effectively separated on a micro-phase interface, the micro-phase separation structures formed by the method have good stability, the fullerene is used as electron receiving materials to be sequentially arranged on the micro-phase interface, and the consumption of the expensive fullerene is greatly saved. The preparation method provided by the invention has the advantages of simple and convenient process, high film forming quality, high input-output ratio, low cost, wide application prospects and the like. Products prepared by using the preparation method provided by the invention belong to a new generation of green environmental-protection high-performance chemical engineering products and can be used in the field of organic photovoltaic materials.

The invention relates to a compound chemical hybridizing agent composite and application thereof. The composite contains compound tribenuron-methyl, thifensulfuron methyl, a boricfertilizer, a dispersing agent, soluble starch and the like. The composite can induce the male sterility and female fertility of crucifer. In comparison with a single agent, the compound chemical hybridizing agent has a good and thorough male sterility effect, a male sterility rate of over 95 percent and a female fertility rate of 100 percent. The compound chemical hybridizing agent has bioactivity which is 100 to 1,000 times as high as that of the traditional hybridizing agent, the used amount is 0.15 to 0.3g/hm<2>, and the compound chemical hybridizing agent has the advantages of superhigh efficiency, super-low used amount, low toxicity, low residue and low cost.

The invention belongs to the technical field of pesticide preparations, and particularly relates to a weeding composition containing tritosulfuron pestanal active components. The weeding composition comprises a component A and a component B which serve as the active components, wherein the component A is tritosulfuron pestanal, the component B is one or more of compounds including acetochlor, alachlor, metolachlor, dimethenamid, efficient dimethenamid, propisochlor, propachlor, ethachlor, diphenamide, ethaprochlor, flufenacet, allidochlor, prynachlor, nicosulfuron, rimsulfuron, thifensulfuron, atrazine, cyanazine, simazine, simetryn, ametryn, terbutryn, terbuthylazine, dimethyl tetrachloro, 2, 4-D butyl ester, 2, 4-D isooctyl ester, fluroxypyr, dichloro pyridine acid and fluroxypyr-mepthyl. The weeding composition can greatly improve preventing and removing effects of single doses, enlarges weeding spectrum, reduces dosage per mu (Chinese acre) and is very safe to crops.

The invention discloses a production method of polyphenylene sulfide-based adsorption separation resin. The production method comprises the following steps: adding a solvent to polyphenylene sulfide resin to swell the polyphenylene sulfide resin adding anhydrous tin tetrachloride and chloromethyl ether, heating and reacting above materials, and post-processing the obtained reaction product to obtain CH2Cl-containing CMPPS resin; and adding a solvent to the obtained CMPPS resin to swell the CMPPS resin, adding a catalyst and a functionalized monomer, heating and reacting above materials, and post-processing the obtained reaction product to obtain the final product polyphenylene sulfide-based adsorption separation resin. Functional groups comprising a thienyl group, a 3-aminopyridyl group and a mercapto group, introduced to the invention, have good coordination adsorption ability to heavy metal ions, and the functional groups contain N and S hetero atoms, have small relative molecular mass, and can easily coordinate with the heavy metal ions, so an excellent adsorption purpose can be reached.

The invention discloses a composite plant essential oil feed additive. The composite plant essential oil feed additive is prepared from the raw materials including, by weight part, 1-5 parts of carvacrol, 1-5 parts of thymol, 1-5 parts of eugenol, 2-10 parts of cinnamyl aldehyde, 1-5 parts of fructus forsythia oil, 1-5 parts of ginger oil, 1-5 parts of tryptophan, 2-10 parts of glucose, 5-25 partsof modified silicon dioxide, 1-5 parts of antioxidants, 5-25 parts of rock flour, 1-3 parts of thiophene modified eugenol and 2-10 parts of eugenol modified chitosan. The invention also discloses preparation and application methods of the composite plant essential oil feed additive. The composite plant essential oil feed additive is wide in application range, capable of replacing antibiotics, free from toxic and side effects and pollution, low in cost and application amount, good in growth promoting effects on livestock and poultry, stable in performance, efficient in utilization and capableof facilitating livestock and poultry feeding; meanwhile, the composite plant essential oil feed additive has the advantages of enhancing production performance, reducing the diarrhea rate and the death rate, regulating intestinal micro-ecosystem, improving blood circulation and enhancing immunity.

The invention discloses a method for preparing a positive pole lead plaster for a lead-acid storage battery. The method comprises the following steps: the weight proportioning of raw materials of the positive pole lead plaster is 100 lead powder, 4-8 lead dioxide, 0.2-0.4 thiophene fiber, 0.2-0.5 sodium sulfate, 7.5-9 deionized water, 6-8 active foamy carbon material and 12-14 sulfuric acid solution of which the mass percent concentration is 45%, wherein the content of PbO in the lead powder is 75%, and the length of thiophene fiber is 1-3mm; the lead dioxide, the thiophene fiber, the sodium sulfate and the active foamy carbon material are added together with the lead powder into a plaster mixing machine after being well mixed, and the mixture is stirred for 10-12 minutes after the machine is started; purified water which takes up 13-15% of the weight of the mixed material is added uniformly into the mixture and is then continually stirred with the mixture for 6 minutes; and the dilute sulphuric acid is uniformly added into the mixture within 23-25 minutes in a spraying way according to the proportioning, an air inlet and circulation cooling water of the plaster mixing machine are started while the dilute sulphuric acid is added, the temperature is controlled to be 50-55 DEG C, the stirring is carried out continuously for 13-15 minutes to discharge the plaster after the dilute sulphuric acid is added. The plaster discharge temperature is no more than 40 DEG C, and then a negative pole lead plaster of the super lead-acid storage battery is obtained.