65 results about "Tributyltin" patented technology

The invention discloses a method for preparing an aqueous polyurethane / nano titanium dioxide hybrid material and relates to a preparation technology of a modified polyurethane emulsion. The method comprises the following steps of: (1) preparing TBT (Tributyltin) sol; (2) adding polyalcohol and isocyanate which are used as raw material monomers, adding a hydrophilic chain extender, heating up the system to 30-80 DEG C by using N-polyvinyl pyrrolidone as a solvent and then adding a catalyst; (3) after the mixture reacts of 1-6 hours, heating up the system to 60-100 DEG C; continuing to make the mixture react for 1-6 hours, and then cooling to 20-60 DEG C; adding triethylamine used as a salt forming agent, and making the mixture react for 10-60 minutes; dispersing with water by using ethanediamine as a chain extender to obtain an aqueous polyurethane emulsion; maintaining the temperature to 20-50 DEG C, adding a small quantity of gamma-epoxypropyl trimethoxy silane and stirring for 10-90 minutes; adding the TBT sol to the system and dropwise adding a small quantity of hydrochloric acid; and persistently stirring for 12-48 hours to obtain the aqueous polyurethane / nano titanium dioxide hybrid material. The properties such as the weather resistance, the mechanical property, the coating transparency, and the like of the hybrid material are greatly improved.

The invention relates to a fishing net thread. The fishing net thread is prepared from high-strength polyethylene fibers, light calcium carbonate, calcium silicate, MBS resin, tributyltin, an antioxidant 2,6-di-tert-butyl-4-methylphenol through processes of fusion, drawing, spinning and the like. The fishing net thread provided by the invention adopts a simple processing craft. By using high-strength polyethylene as a raw material to process, the price of the fishing net thread is greatly lowered. Moreover, by using high-strength polyethylene as the raw material, the processing method is simple, the fishing net thread is easy to process and mold, and the molded fishing net thread has good tensile strength and wear resistance.

The invention discloses ethylenedioxothiophene-and-naphthalene-tetracarboxylic-acid-bisimide-structural-unit-based low band gap polymers, and a preparation method and an application method thereof, and belongs to the technical field of chemical photoelectric materials. The preparation method comprises the following steps of: performing Stille coupling polymerization reaction on a monomer, namely 2,5-bis(tributyltin)-3,4-ethylenedioxothiophene, and a monomer, namely N,N'-bis-(2',6'-diisopropylphenyl)-2,6-dibromonaphthyl-1,4,5,8-tetracarboxylic acid bisimide to obtain a target alternate copolymer P1 with moderate molecular weight; and further copolymerizing the alternate copolymer and a monomer, namely 2,5-dibromo-3,4-ethylenedioxothiophene by a Stille coupling polymerization method to obtain a random copolymer P2. The two polymers prepared by the method have lower optical band gaps and broader spectral absorption, and have a great application prospect in solar battery materials and other photoelectric devices.

The invention belongs to the field of polymer semiconductor materials, and discloses a polymer semiconductor containing a bipyridine diazole derivative receptor and a preparation method and application thereof. A structure of the polymer semiconductor is shown in a formula (I), and the preparation method comprises the following steps: (1) reacting 2-tributyltin-4-alkylthiophene with a dibromobenzimidazole derivative to prepare an intermediate a; (2) reacting the compound a with a bis-butyltin b to obtain a compound c; (3) performing a reaction on the compound c and N-bromosuccinimide to obtainM1; and (4) performing a palladium-catalyzed coupling reaction on the M1 and (E)-bis1,2-(tri-n-butyltin)ethylene to obtain the final product. According to the invention, the synthetic route is simpleand high-efficiency, the raw materials are easy to obtain, the costs are low, the universality is high and the repeatability is good, and a field effect transistor prepared by using the polymer semiconductor as an active layer obtains outstanding bipolar transmission characteristics, and has wide market prospects.

The present invention provides a toner binder for developing electrostatic charge images,which binder comprises a polycondensate polyester resin,said polyester resin being a product formed in the presence of at least one titanium-containing catalyst (A) selected from the group consisting of a titanium halides (A1), a titanium diketone enolate (A2), a titanium carboxylate (A3), a titanyl carboxylate (A4), and a titanyl carboxylate salt (A5).Furthermore, the present invention provides a toner binder for developing electrostatic charge images,which binder comprises a polycondensate polyester resin,said polyester resin being a product formed in the presence of at least one tin-containing catalyst (B) selected from the group consisting of dioctyltin oxide (B1), monobutyltin oxide (B2), and dibutyltin oxide (B3), with the content of tributyltin compounds in (B3) being not more than 250 ppm.

The invention discloses a spirofluorene derivative. The structure of the spirofluorene derivative is shown as a formula (I); and in the formula (I), R1, R2, R3 and R4 are end group receptor groups and are independently selected from groups shown as a formula (I-a), a formula (I-b) or a formula (I-c).The spirofluorene derivative has a strong absorbing ability to visible light, and can be used as a small molecular donor material and applied in the field of organic solar energy. The invention also discloses a preparation method for the spirofluorene derivative. The spirofluorene derivative is obtained by using 4,7-dibromobenzothiadiazole and 4-hexyl-2-tributyltin thiophene as initial raw materials through Stille coupling reaction, Vilsmeier-Harker reaction, bromination reaction, Suzuki coupling reaction and Knoevenagel condensation reaction sequentially.

The invention provides a method for detecting tributyltin in marine fishes and shellfishes. The method comprises the following steps: taking a to-be-detected sample, adding a standard TBT solution into the to-be-detected sample, and performing ultrasonic extraction with an acetic-acid-methanol solution to obtain a to-be-adsorbed solution; preparing Fe3O4 nanoparticles, modifying the Fe3O4 nanoparticles with APTS, modifying the obtained Fe3O4@APTS particles with MAA, and coating the obtained Fe3O4@MAA particles with an MIP layer to obtain a magnetic molecularly imprinted polymer Fe3O4@MIPs; and adding the to-be-adsorbed solution into Fe3O4@MIPs for adsorption while performing magnetic stirring, performing elution with a formic-acid-methanol solution, and detecting the obtained eluate with HPLC-ICP-MS. The method has characteristics of good interference resistance and high sensitivity and speed. At the same time, according to the method, gathering of tributyltin is improved during a detection process and provides necessary requirements for detection, and adoption of the imprinted polymer is beneficial for specificity detection.

The invention discloses an additive composition for improving NOx emission in M85 methanol gasoline. The additive composition is prepared by mixing the following components: 18.0-31.0% of 4-fluorobenzylmagnesium chloride, 15.0-29.5% of diethyl diselenide, 15.0-24.5% of diethyl benzylphosphonate, 13.0-24.0% of tripropanol vanadium oxide (V), 10.0-20.5% of trifluoride diethyl etherate and 9.0-19.5% of 2-(tributyltin alkyl) furan. The additive composition has an obvious effect of improving the NOx emission in M85 methanol gasoline at high proportion; when 0.02-0.05% of the additive composition is added into common M85 methanol gasoline, the NOx emission can be reduced by over 30%.

The invention discloses a low-temperature-resistant sealing strip for a window. The low-temperature-resistant sealing strip is prepared from, by weight, 35-40 parts of nitrile butadiene rubber, 40-45 parts of natural rubber, 25-30 parts of butadiene styrene rubber, 20-25 parts of cis-polybutadiene rubber, 8-10 parts of sulphur, 7-11 parts of carbon black, 9-15 parts of carbon fibers, 5-10 parts of naphthenic oil, 12-14 parts of vaseline, 6-12 parts of dibutyl sebacate, 4-8 parts of diphenyl silanediol, 2-6 parts of diesel oil, 7-11 parts of epoxidized soybean oil, 13-16 parts of phthalic esters, 5-10 parts of alkylphenol ethoxylates, 8-12 parts of polyoxyethylene alkanolamide, 4-8 parts of talcum powder, 15-20 parts of quartz powder, 5-10 parts of titanium dioxide, 7-9 parts of sodium fluoride, 8-14 parts of tributyltin and 1-4 parts of benzotriazole. The low-temperature-resistant sealing strip for the window is high in low temperature resistance, antistatic and capable of delaying light aging and keeping long service life of the window.

The invention discloses a rice straw-polyurethane / rock wool composite partition board and a preparation method thereof. The preparation method comprises the following steps: 1) breaking rice straws, brooming to obtain straw fibers, and then carrying out foaming reaction on the straw fibers, yellow dextrin, a foaming agent, polyurethane, triethylenediamine, dimethyl siloxane, tributyltin and ethylene glycol, so as to obtain a foamed object; 2) carrying out melting, wire drawing and cooling on dolomite, basalt, attapulgite, nano talcum powder, white carbon black and urea, so as to obtain foamedrock wool fibers, and then solidifying and compressing the foamed rock wool fibers by virtue of a bonding agent, so as to obtain a rock wool board core; and 3) coating the foamed object on the surfaceof the rock wool board core, and then cooling, so as to obtain the rice straw-polyurethane / rock wool composite partition board. The composite partition board has excellent light weight and fireproofeffects, and the preparation method has the advantages of simple working procedures and available raw materials.

The invention provides a preparation method of LZ969. According to the preparation method, LZ969 is used for representing a compound of valsartan and 4-(((2S, 4R)-1-(1, 1'-biphenyl-4-yl)-5-ethoxy-4-methyl-5-oxo pentane-2-yl) amino)-4-oxo butyric acid at a molar ratio of 1:1. A preparation method of valsartan comprises following steps: L-valine methyl ester hydrochloride is synthesized; nucleophilic substitution is carried out so as to obtain N-[2'-cyano-(biphenyl-4-yl)-methyl]-L-valine methyl ester hydrochloride; valeryl chloride is added, sodium carbonate is taken as an acid-binding agent, acetone is taken as a solvent, and N-[2'-cyano-(biphenyl-4-yl)-methyl]-N-valeryl is obtained via reaction; and N-[2'-cyano-(biphenyl-4-yl)-methyl]-N-valeryl, sodium azide, and chloro-substituted tributyltin are subjected to heating reaction by taking pyridine as a solvent so as to obtain valsartan. Technical route reaction of the preparation method is mild; operation is simple; and yield is high.

The invention relates to a notebook shell coating as well as a preparation method and application thereof. The notebook shell coating comprises the following components in parts by mass: 60-65 parts of trans-1,4-cyclohexane didsocyanate, 25-35 parts of n-butyl alcohol, 15-20 parts of an aminosilane coupling agent, 5-10 parts of tributyltin methacrylate, 8-15 parts of dimethylbenzene, 20-30 parts of modified spherical carbonyl iron powder, 4.5-9 parts of epoxy resin, 10-20 parts of aluminum oxide particles, 10-12 parts of borax and 50-100 parts of deionized water.

The invention discloses a preparation method for a flame-retarding partition wall for space rent. The preparation method comprises the steps that (1) flame retardants are prepared, specifically, alkylphosphinate shown as the formula (I), tributyltin, tri-n-octylphosphine oxide and melamine are heated at the temperature of 220-280 DEG C and make contact; (2) three-layer flame-retarding plate bodiesare prepared, specifically, first-layer materials, second-layer materials and third-layer materials are mixed respectively and then subjected to co-extrusion forming; and (3) a filling layer is gluedbetween the two three-layer flame-retarding plate bodies arranged oppositely, wherein the first-layer materials, the second-layer materials and the third-layer materials all contain the flame retardants. The flame retardants in plates used for the partition wall do not lose flame-retarding performance in the high-temperature processing process, and generating of fragile substances is not found either, mechanical performance is good, flame retarding and environmental friendliness are achieved, and quite high application and popularization value is achieved.

The invention relates to carving artware and a manufacturing method thereof and belongs to the field of carving. The manufacturing method comprises the following steps that a carving pattern is drawn on the surface of a to-be-carved object, rough carving, fine carving, polishing and grinding are conducted sequentially, a primary carving product is obtained, a first solution is sprayed on the primary carving product, and drying is conducted. The first solution comprises, by weight, 4-8 parts of alkyl halide compounds, 0.02-0.03 part of tributyltin, 0.03-0.05 part of cyclohexanol, 2-3 parts of boride and 0.5-0.8 part of formaldehyde. The manufacturing method is simple and easy to operate. The carving artware manufactured and obtained through the manufacturing method is not liable to mildew and color fading, lines are clear, and the texture is good.

The invention discloses a concrete wall. The concrete wall is prepared from the following materials in parts by weight: 15-20 parts of aggregates, 58-60 parts of pozzolana cement, 16-22 parts of ground slag powder, 2-5 parts of quartz sands, 7-17 parts of magnesium oxide, 25-30 parts of sodium sulfite, 8-16 parts of nano-silver, 9-14 parts of ammonium dihydrogen phosphate, 23-25 parts of steel fibers, 2-7 parts of dibutyl sebacate, 8-10 parts of diphenyl silanediol, 6-10 parts of resorcinol, 8-15 parts of sodium amino-tris(methylenesulphonate), 3-8 parts of polyoxyethylene alkanolamide, 10-15 parts of sodium fluoride, 5-8 parts of tributyltin, 6-7 parts of lithium carbonate, 8-12 parts of pentaerythritol octahydrogen tetraphosphate, 3-9 parts of polyimide and 14-18 parts of polyvinyl alcohol. The concrete wall has the advantages of low-temperature resistance, good anti-freezing effect and high structure strength, and has an antibacterial effect.

The invention belongs to the technical field of organic light-emitting materials, and discloses a diazosulfide light-emitting material containing diphenyl phosphine oxide and a preparation method and application thereof. The preparation method includes the steps that benzene, thiophene, carbazole, fluorene, anthracene and pyrene or bromide of pyridine are used as reaction raw materials, and boric acid ester substituted by diphenylphosphine radicals or an intermediate substituted by tributyltin is obtained through a two-step reaction; then the intermediate is reacted with 4,7-dibromo benzothiadiazole or 4,7-bis(5-bromothiophene-2-base)-2,1,3 diazosulfide, and thus a precursor containing diphenylphosphine is obtained; at last, the diazosulfide light-emitting material containing the diphenyl phosphine oxide is obtained through oxidation by an oxidizing agent. The light-emitting material has a good electron injection and transmission property, the light-emitting material of light-emitting colors including red, green, blue and the like can be prepared, and great application prospects are achieved on the aspects of electroluminescent display, illumination and laser devices.

Disclosed are methods for manufacturing radiohalogen-labeled steroids, nucleosides, nucleotides and proteins, for example, pyrimidines and proteins. Methods according to the example embodiments specific to pyrimidines includes dissolving a halogenated pyrimidine to obtain an initial solution, adding bis(tributyltin) and triphenylphosphine palladium to produce a catalyzed solution, heating the catalyzed solution under conditions sufficient to induce a reaction that produces an intermediate solution including a stannylated pyrimidine compound, removing substantially all of the first solvent from the intermediate solution to obtain an intermediate composition, purifying the resulting solution to obtain a purified composition including a stannylated pyrimidine, reacting the stannylated pyrimidine compound with a radiohalogen in a buffered reaction mixture to produce the radiohalogenated pyrimidine, adding an antioxidant and extracting the radiohalogenated pyrimidine from the reaction mixture. The extracted radiohalogenated pyrimidine(s) may be utilized in forming diagnostic and / or therapeutic products.

The invention discloses an anti-aging automobile motor controller wire harness and a preparing method thereof. The method comprises the steps that firstly, bentonite, diazonium salt, tributyltin and vinyl triethoxysilane are subjected to a contact reaction in an organic solvent under the alkaline condition, and then filtering is carried out to obtain a modified activator; secondly, natural rubber, silica powder, N-cyclohexyl-N-phenyl-p-phenylenediamine, butylated hydroxytoluene, lignin, urea phosphate, 2-methyl anthracene, methyl tertiary butyl ether, trimethoprim, methyl triethoxysilane, ammonium chromic alum and the modified activator are mixed into rubber masterbatch; thirdly, a vulcanizing agent, sulfur and the rubber masterbatch are subjected to first-time vulcanization treatment; fourthly, the rubber masterbatch obtained after first-time vulcanization treatment is subjected to second-time vulcanization to form modified rubber; fifthly, the modified rubber is applied to the surface of a wire core through extruding formation to form the anti-aging automobile motor controller wire harness. The wire harness has excellent mechanical properties, high-temperature resistance and antibacterial performance.

The invention relates to a preparation method of a new material used as a compatibilizing chain extender. In parts by weight, add styrene, 1-hydroxytetraphenylcyclopentadiene tetracarbonyl diruthenium, 1,4-butanediol vinyl diether, 4-amino-5,5,5- Ethyl trifluoro-3-pentenoate, vinyl (trifluoromethyl) dimethylsilane, allyl tributyltin, benzoyl peroxide, water, polyvinyl alcohol, stir well and then heat up, reaction, product After filtering, washing with water and drying, the new material of the expansion and chain extender is obtained.

The invention relates to a method for preparing 131I-metaiodobenzylguanidine with high radioactive specific activity and without a carrier. The method comprises the following steps: performing normal-temperature reaction on a labeled precursor N,N'-di(t-butyloxycarboryl)-3-(tributyltin)-bethanidine, a buffer solution, an oxidizing agent and Na131I for 20 minutes, and adding a reducing agent and heating to 100 DEG C to react for 20 minutes; standing after the reaction is finished, cooling to room temperature, adding anion exchange resin and lightly stirring for 2 minutes; absorbing supernate and passing through a microfiltration membrane to obtain the product. The 131I-metaiodobenzylguanidine, prepared by using hydrogen peroxide--trifluoroacetic acid or N-chlorosuccinimide--sodium pyrosulfite as the oxidizing agent and the reducing agent, has high radiochemical purity and high radioactive specific activity. Reaction byproducts are removed from the 131I-metaiodobenzylguanidine solution after anion exchange resin treatment and microfiltration membrane filtration, and the tin amount is reduced to trace amount, so the 131I-labeled metaiodobenzylguanidine is suitable for clinical diagnosis and treatment. The condition of the labeling reaction is mild and simple, so preparation can be finished in a hospital, and high cost and decay loss of medicines caused by transportation are avoided.

The invention discloses a making method of (s)-(-)-5-tributyl tin-N-[(1-allyl-2-pyrrolidyl) methyl]-2, 3-dimethoxy benzamide in the organic synthetic technical domain, which comprises the following steps: a) adopting 5-iodine-2, 3-dimethoxy benzene carbonic acid and (s)-1-allyl-2-methylamino pyrrolidone as raw material; acylating dicyclo hexylcar bodiimide and pyridine; or b) acylating oxalyl chloride and N, N-dimethyl formamide to make (s)-(-)-N-[(1-allyl-2-pyrrolidyl) methyl]-5-iodine-2, 3-dimethoxy benzamide with receiving rate at 85% and 91% separately; reacting with ditributyl tin catalyzed by (Ph3P4)Pd and PdAc to produce the product with receiving rate at 82% as important marked primer of 123I-nalepride to make SPECT imaging agent marked by iodine [123].

The invention discloses a hydrophobic aluminum electrode anticorrosion coating, which is composed of the following raw materials in parts by weight: 1-2 tetrameric ricinoleate, 3-4 perfluoroalkyl ethyl alcohol, 0.1-0.2 butyltin trioctoate, aluminum Calcium Acid 1‑2, Diphenylimidazoline 0.2‑0.4, Hydroxystearic Acid 0.2‑0.4, Cetyltrimethylammonium Bromide 0.7‑1, Magnesium Sulfate 0.05‑0.06, Benzotriazole 0.06‑ 0.07, octylphenol ethoxylate 1.7‑2, dodecylamine 0.3‑0.5, ethyl orthosilicate 46‑50, n-dodecyl trichlorosilane 0.3‑0.4, zirconium n-propoxide 13‑20, acetyl Ethyl acetate 7‑10, isopropanol 57‑60, silane coupling agent kh56010‑13, tetrabutylammonium bromide 0.1‑0.2. The invention improves the hydrophobic performance of the surface of the finished coating film and improves the corrosion resistance of the electrode through the modification of the n-dodecyl trichlorosilane.

The invention discloses a preparation method of a plasticized specimen, and belongs to the technical field of specimen treatment. The method comprises the following steps: weighing 100 parts by weightof silicone rubber, adding 3-5 parts by weight of catalysts, and uniformly stirring to obtain rubber A; putting a dehydrated and degreased specimen into the rubber A disposed in a vacuum pressure bin, standing for 8-12 days to obtain an impregnated specimen; taking out the specimen, putting the specimen into a warm room at 35-45 DEG C, and fumigating the specimen with curing agent steam for 3-5 days so that the specimen is completely cured. After the catalysts which are dibutyltin and tributyltin are added into the silicone rubber, the specimen mould-proof effect is remarkable, and the service life of the specimen is effectively prolonged. The preparation method is simple to operate and high in feasibility, and has the advantages of environmental protection, no toxicity, no odor, no irritation and the like; the plasticized specimen is easy to preserve and long in preservation time.

The invention discloses a high strength automobile tail wire harness and a preparation method thereof. The preparation method comprises: 1) subjecting bentonite, a diazonium salt, tributyltin, and triethyl silicon to contact reaction in an organic solvent under an alkaline condition, and then performing filtering to obtain a modified activator; 2) mixing natural rubber, silicon micropowder, N-cyclohexyl-N-phenyl-p-phenylenediamine, di-tert-butyl-p-cresol, lignin, urea phosphate, 2-methylanthracene, methyl tertiary butyl ether, trimethoprim, methyltriethoxysilane, ammonium chromic alum and the modified activator to obtain masterbatch; 3) mixing a vulcanizing agent, sulfur and the masterbatch to conduct first vulcanization treatment; 4) subjecting the masterbatch subjected to the first vulcanization treatment to second vulcanization to prepare modified rubber; and 5) carrying out extrusion molding on the modified rubber on a wire core surface so as to form the high strength automobile tail wire harness. The wire harness has excellent mechanical properties and high temperature resistance.

The invention discloses an antioxidant and waterproof printing ink. The antioxidant and waterproof printing ink is characterized by being prepared from the following raw materials in parts by weight: 18-23 of diethylene glycol mono-methyl ether, 16-19 of nonylphenoxypoly(ethyleneoxy)ethanol, 6-8 of 2-butoxyethanol, 0.4-0.8 of sodium methyl cocoyl taurate, 4-7 of tributyltin acrylate, 7-9 of polyethylene glycol diacrylate ester, 5-7 of tert-butyl peroxypivalate, 1.1-2.5 of dicumyl peroxide, 1-2 of nanometer anion powder, 5-7 of shell powder, 3-5 of grape seed oil, 0.3-0.7 of borax, 4.3-5.4 of bismuth oxide, 4-6 of organic pigments, 5-8 of aids and a proper amount of water. According to the antioxidant and waterproof printing ink disclosed by the invention, with the addition of effective components including nanometer anion powder, grape seed oil and dicumyl peroxide, a protective film is formed on the surface of the ink so as to isolate air from the surface of the ink, and the antioxidant and waterproof printing ink has the advantages of good oxidation resistance, water proofing, melting resistance and abrasion resistances, high glossiness, bright color and the like; by virtue of modified production process and formula flow, the preparation process of the ink is simplified, and the antioxidant and waterproof printing ink is suitable for industrial production.

The invention relates to a synthesis method of valsartan. The method comprises the following steps: by taking L-valine benzyl ester (I), para-bromobenzyl bromide (II) and benzonitrile (V) as primary raw materials, reacting the L-valine benzyl ester (I) with the para-bromobenzyl bromide (II) to produce a compound (III); performing acrylation reaction on the compound (III) and ammonium valeryl chloride to obtain (S) 2-[(4-bromobenzyl)-valeryl]-3-methyl benzyl butyrate (IV); after performing n-butyllithium treatment on the benzonitrile (V), reacting with trimethyl borate to obtain 2-cyanophenyl boric acid (VI); performing Suzuki coupling reaction on the compound (IV) and the compound (VI) to obtain (S)-N-valeryl-N-[(2'-cyanobiphenyl-4-yl)methyl]-valine benzyl ester (VII); reacting the compound (VII) with azidotributyltin to obtain (S)-N-valeryl-N-[[2'-(N'-tributyltin-5-tetrazolyl)-4-diphenyl]methyl]-valine benzyl ester (VIII); performing protecting group removal reaction and hydrolysis reaction on the compound (VIII) to obtain target product valsartan (X). The synthesis method has the advantages of mild synthesis condition, high yield, less using amount of solvent and low production cost and is suitable for industrial production.

The invention relates to a DPP (diketopyrrolopyrrole) block polymer with carbazole groups, a method for preparing the DPP block polymer and application thereof. The method includes firstly, synthesizing 3, 6-di-(thiophene-2-group)-2, 5-bis-[8-(tributyltin alkyl) octyl] pyrrolo-[3, 4-c] pyrrole-1, 4 (2H, 5H)-diketone; secondly, synthesizing N1, N1-bis-(4-bromobenzene)-N4, N4-diphenylbenzene-1, 4-carbazole monomers; thirdly, synthesizing the DPP block polymer with the carbazole groups. The DPP block polymer, the method and the application have the advantages that the problems of low solubility of compounds with DPP in organic solvents and difficulty in processing the compounds to form films can be solved by the aid of the DPP block polymer, the method and the application; the DPP block polymer which is a material can be applied to preparing photoelectric materials including electrochromic materials, fluorescent sensing materials, hole transport materials, anti-counterfeiting materials, camouflage materials and explosive detection and memory performance components.

The invention discloses a synthesis method of a sulfur alkyl substituted benzotriazole compound. The synthesis method includes the steps: taking benzotriazole as raw materials, and reacting the benzotriazole and alkyl bromide to obtain 2-hexyl-benzo[d] [1, 2, 3] triazole; brominating the 2-hexyl-benzo[d] [1, 2, 3] triazole to obtain 2-hexyl-4, 7-dibromo-benzo[d] [1, 2, 3] triazole; nitrating the 2-hexyl-4, 7-dibromo-benzo[d] [1, 2, 3] triazole to obtain 2-hexyl-4, 7-dibromo-5, 6-dinitro-benzo[d] [1, 2, 3] triazole; reacting the 2-hexyl-4, 7-dibromo-5, 6-dinitro-benzo[d] [1, 2, 3] triazole and 2-tributyltin thiophene to obtain 2-hexyl-4, 7-bithiophene-5, 6-dinitro-benzo[d] [1, 2, 3] triazole; reacting the 2-hexyl-4, 7-bithiophene-5, 6-dinitro-benzo[d] [1, 2, 3] triazole and the alkyl bromide to obtain the sulfur alkyl substituted benzotriazole compound. According to the synthesis method, raw materials are easy to obtain, cost is low, reaction conditions are mild, and sulfur alkyl is firstly introduced into benzotriazole.

The invention discloses a bi(tributyltin) trans-butene dibasic acid ester complex as well as a preparation method and an application thereof. The complex is a complex of a structural formula (I) as shown in the specification. The invention further discloses the preparation method the bi(tributyltin) trans-butene dibasic acid ester complex and the application in preparing an anti-tumor medicine.

The invention discloses a preparation method of a fire-retardant partition wall for space lease. The fire-retardant partition wall for space lease comprises a group of double-layer flame-retardant plate bodies and a filling layer arranged between the double-layer flame-retardant plate bodies, wherein the double-layer flame-retardant plate bodies are a flame-retardant polyvinyl chloride double-layer board material containing a flame-retardant smoke suppressant, and the flame retardant smoke suppressant is prepared through heating contact of an alkyl phosphinate as shown in a formula (I), tributyltin, tri-n-octylphosphine oxide and melamine at 220-280DEG C, wherein in the formula (I): R1 is C1-C6 alkyl or phenyl, R2 is C1-C6 alkyl or phenyl, M is a metal element, and n is a positive integerfrom 1 to 4. According to the preparation method of the fire-retardant partition wall for space lease, the flame-retardant smoke suppressant does not lose flame-retardant performance during a high-temperature processing process, and does not produce fragile substances; and the obtained fire-retardant partition wall has good mechanical properties, is flame-retardant, and is environmentally friendly, therefore, the fire-retardant partition wall has very high promotion and application values.