314 results about "Phenylphosphine" patented technology

The invention discloses a preparation method and protection application of a luminous iodine adsorbent, and relates to the technical field of radioactive waste gas and waste liquid treatment. The method comprises the following steps: jointly dissolving an organic ligand and metal ions in a solvent to obtain a mixed solution, carrying out room-temperature reaction on the mixed solution, and assembling to obtain the luminous MSOFs adsorbent, wherein the organic ligand is a sulfydryl ligand with a nitrogen heterocyclic ring or a phenylphosphine derivative; the ligand central atom comprises gold, silver, copper, platinum, palladium, iron, aluminum, nickel or cobalt. The prepared iodine adsorbent and the protection device are excellent in adsorption capacity, low in cost, capable of being rapidly and massively synthesized, high in adsorption rate and beneficial to efficient treatment and real-time monitoring of iodine; the preparation method is simple in step, convenient to operate and low in equipment requirement.

To provide an active ray-curable inkjet ink including a polymerizable compound modified by amine, capable of forming a cured film having both high scratch resistance and high folding crack resistance.SOLUTION: An active ray-curable inkjet ink includes: a polymerizable compound (A) which is polymerized by irradiation of active rays; a photopolymerization initiator (B); and a gelatinizer (C). The polymerizable compound (A) includes an amine-modified polymerizable compound (A1), and the photopolymerization initiator (B) includes an ethoxy(2,4,6-trimethylbenzoyl)phenylphosphine oxide.SELECTED DRAWING: None

An active energy ray-curable inkjet printing ink composition satisfies requirements A to E below is provided: (A) the content of amine-modified oligomer is 1.0 to 20.0% by mass; (B) alkoxy group-containing (meth)acrylate monomers are contained by 2.0 to 20.0% by mass; (C) (meth)acrylate monomers having an alkyl group with 6 to 20 carbon atoms is contained by 2.0 to 25.0% by mass; (D) at least one type selected from the group that consists of 1,6-hexanediol diacrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, 1,10-decanediol diacrylate, propoxylated(2)neopentyl glycol diacrylate, and hydroxypivalic acid neopentyl glycol diacrylate is contained by 30.0 to 60.0% by mass; (E) as photopolymerization initiators, ethoxy(2,4,6-trimethylbenzoyl)phenylphosphine oxide is contained by 3.0 to 15.0% by, and oligo(2-hydroxy-2-methyl-1-(4-(1-methylvinyl)phenyl)propanone) and / or 2-hydroxy-1-{4-[4-(2-hydroxy-2-methylpropionyl)phenoxy]phenyl}-2-methylpropanone is / are contained by 2.0 to 10.0% by mass, where the total content of photopolymerization initiators is 6.0 to 25.0% by mass.

The invention discloses a high-impact material prepared from recycled polypropylene and a preparation method of the high-impact material, and relates to the field of materials. When recycled polypropylene is used for preparing the high-impact material, firstly, polypropylene is grafted with vinyl diphenylphosphine, then the grafted polypropylene is reacted with 1-(3-chlorphenyl)-2-propyn-1-ol, and then the reacted polypropylene is reacted with 6-(methyl formate) pyridine-3-boric acid to obtain modified polypropylene; secondly, the calcium carbonate pretreated by 3-aminopropyltrimethoxysilane reacts with 3-thiophenecarboxaldehyde, thiophene, 6-(thiophene-2-yl) pyridine-2-carboxylic acid and 6-(3-thienyl) pyridine-2-formaldehyde are polymerized on the surface of the calcium carbonate, and modified calcium carbonate is obtained; and finally, carrying out melt blending on recycled polypropylene, modified polypropylene, modified calcium carbonate, sodium cyanide and bismaleimide, and carrying out extrusion granulation to obtain the high-impact material. The high-impact material prepared by the invention has good impact resistance, aging resistance and antibacterial property.

The invention provides an ultraviolet light-heat dual-curing electronic adhesive and a preparation method thereof, and belongs to the technical field of organic polymer adhesives. The adhesive is prepared from acrylic acid modified epoxy resin, N, N-dimethyl allyl amine, methacrylic acid, glycidyl methacrylate, ethoxyethyl methacrylate, a free radical photoinitiator and 2-(dodecyl trithiocarbonate)-2-methyl propionic acid. Wherein the methacrylic acid modified glycidyl ether is synthesized from methacrylic acid, bifunctional glycidyl ether, triphenylphosphine and a polymerization inhibitor. A molecular chain of the adhesive contains carboxyl (participating in an epoxy group reaction) and a tertiary amine group (participating in a catalytic thermocuring reaction) required by a subsequent thermocuring reaction, so that small molecular compounds such as a curing agent or a catalyst and the like do not need to be additionally added when the adhesive is used, and pollution to electronic components is reduced from the source.

The invention relates to a molecular tag DMDPM compound, a preparation method thereof and application of the molecular tag DMDPM compound in assisting homogeneous synthesis of heptapeptide H6K, and belongs to the technical field of organic synthesis. The molecular tag DMDPM compound is 2, 4-dimethoxy-4 '-diphenylphosphinyl oxydiphenyl alcohol, and the molecular tag DMDPM compound is 2, 4-dimethoxy-4'-diphenylphosphinyl The method has the advantages of a liquid-phase synthesis method and a solid-phase synthesis method, H6K can be simply, quickly, economically and efficiently synthesized and prepared, and a 2, 4-dimethoxy-4 '-diphenylphosphinyloxy diphenyl alcohol small-molecule auxiliary group (also called as a carrier) can be recycled and directly reused, so that raw material waste is reduced, waste pollution is reduced, the cost is saved, and environmental protection is facilitated.

A silicone hydrogel contact lens formulation comprising [a] at least 40 wt% of a polymerisable siloxane, [b] at least 30 wt% of hydrophilic N-vinyl amide monomer, such as vinyl-N-methyl acetamide (VMA), N-vinyl pyrrolidone (NVP), N-vinyl formamide, or N-vinyl acetamide; [c] triphenylphosphine (TPP) and [d] 1,4-bis[(2-methacryloxyethyl)amino]-9,10-anthraquinone (RB247). The contact lens formulation can further comprise an anthraquinone blue tinting agent, a benzophenone UV-absorbing agent and / or a benzotriazole HEVL absorber to stabilise the silicone hydrogel contact lens formulation.

The invention relates to the technical field of water treatment, in particular to a method for preparing a quaternized modified tannin-based organic flocculant through irradiation grafting, a product prepared through the method and application of the quaternized modified tannin-based organic flocculant. The method comprises the following steps: (1) under the irradiation of 30-60 mW / cm < 2 > of ultraviolet light, adding brominated vinyl triphenylphosphine into a mixture of tannic acid and a photoinitiator for reaction; (2) adjusting the ultraviolet intensity to 5-20 mW / cm < 2 > for reaction; (3) closing the ultraviolet reaction; and (4) precipitating the product with ethanol, filtering and washing to obtain the quaternary phosphonium modified tannin-based organic flocculant. Wherein the photoinitiator is selected from one of benzophenone and benzoin dimethyl ether. The quaternized modified tannin-based organic flocculant provided by the invention can efficiently remove algae in a water body in an environment-friendly manner, and avoids secondary pollution caused by algae cell rupture at the same time.

The invention discloses an anti-skid wear-resistant coating, a preparation method thereof and application of the anti-skid wear-resistant coating in a basketball court, and relates to the technical field of coatings. When the antiskid wear-resistant coating is prepared, firstly, epoxy resin is grafted with vinyl diphenylphosphine and then reacts with epichlorohydrin to obtain modified epoxy resin; then, 2, 2 ', 4, 4'-tetrahydroxybenzophenone and chloroacetyl chloride are subjected to a reaction to prepare an ultraviolet absorption monomer, and the aminated titanium dioxide nanosheet, R-1, 1 '-co-2-naphthylamine and the ultraviolet absorption monomer are subjected to a reaction to obtain a modified titanium dioxide nanosheet; finally, the modified epoxy resin, the modified titanium dioxide nanosheets, ceramsite sand, a defoaming agent, a flatting agent, a curing agent and a diluent are mixed to prepare an anti-skid and wear-resistant coating, and the anti-skid and wear-resistant coating is prepared through coating curing of the anti-skid and wear-resistant coating. The prepared anti-skid wear-resistant coating has good anti-skid, wear-resistant, flame-retardant, anti-ultraviolet aging and antibacterial properties.

The invention discloses a preparation method of 3, 6-dichloropyridazine, and belongs to the technical field of chemistry. According to the method, 3, 6-dihydroxypyridazine is used as a raw material, an organic solvent and triphenylphosphine oxide are combined to form a dichlorotriphenylphosphine intermediate state which is used as a chlorinating agent, dihydroxyl is substituted to generate 3, 6-dichloropyridazine, triphenylphosphine oxide and solid light are used as raw materials, heating reaction is performed to prepare 3, 6-dichloropyridazine, meanwhile, a one-pot method can be adopted in the two-step reaction, and operation is easy and convenient. The novel preparation method for synthesizing 3, 6-dichloropyridazine provided by the invention has the advantages of low raw material cost, high yield, high gas phase purity and no pollution, is suitable for industrial production, can meet industrial requirements, provides a new idea for later preparation of 3, 6-dichloropyridazine, has the remarkable advantages of high gas phase purity and high yield, and is suitable for industrial production. Wide application prospects are realized.

The invention belongs to the technical field of light-emitting hybrid materials, and particularly discloses a preparation method and application of an efficient blue light emitting hybrid material. The preparation method comprises the following steps: dispersing cuprous halide, triphenylphosphine (tpp) and tetraethylammonium halide in N, N-dimethylformamide (DMF) according to a molar ratio of 1: 1: 1 to form a uniform solution, and performing ultrasonic treatment at room temperature to generate luminescent powder; and washing, centrifuging and drying in vacuum to obtain the hybrid material. The highest photoluminescence quantum yield is up to 70%, and the luminescence mechanism is thermally activated delayed fluorescence. The material can be used for a white light LED (CIE coordinate (0.33, 0.33)) and an X-ray scintillator (the light yield is 32537 photons / MeV, and the spatial resolution is 20lpmm <-1 >), and has the characteristics of simple preparation and excellent performance.

The invention provides a macromolecular sulfur-phosphorus composite high-temperature corrosion inhibitor for a crude oil distillation device and a preparation method and application of the macromolecular sulfur-phosphorus composite high-temperature corrosion inhibitor for the crude oil distillation device, and the preparation method of the macromolecular sulfur-phosphorus composite high-temperature corrosion inhibitor for the crude oil distillation device comprises the following steps: step 1, dropwise adding ethylenediamine into a mixture of phenylphosphonic dichloride and acetonitrile at room temperature, and reacting for 2-4 hours; step 2, adding thiourea, heating to 100-120 DEG C, and reacting for 1-2 hours; and step 3, adding fatty acid, heating to 120-140 DEG C, and reacting for 2-4 hours to obtain the macromolecular sulfur-phosphorus composite crude oil distillation device high-temperature corrosion inhibitor. The macromolecular sulfur-phosphorus composite high-temperature corrosion inhibitor for the crude oil distillation device is low in phosphorus content, contains a sulfur element, has the characteristics of small addition amount, high corrosion inhibition rate, low cost and easiness in production, and has a good application prospect and large-scale industrial popularization potential in the field of crude oil distillation devices.

The invention discloses a reinforced flame-retardant regenerated polyester fiber and a preparation method thereof, and relates to the technical field of regenerated polyester fibers, the preparation method comprises the following steps: step S1, preparing a flame-retardant polymer by using bis (4-carboxyl phenyl) phenylphosphine oxide, 4, 8-tricyclo [5.2. 1. O2, 7] decane dimethyl carbinol and N-(4H-1, 2, 4-triazole-4-yl) diphenylamine-4, 4 '-dicarboxylic acid as monomers; step S2, preparation of flame-retardant master batch; step S3, spinning; and S4, (perfluoropropane-2, 2-diyl) bis (4, 1-phenylene) diacrylate and 3-[N, N-dimethyl-[2-(2-methylpropane-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt are adopted for surface modification. The reinforced flame-retardant regenerated polyester fiber has the advantages of favorable mechanical properties, favorable flame retardancy, favorable heat aging resistance and favorable environmental friendliness.

To provide inkjet ink which contains an amine-modified polymerizable compound and can form a cured film having both characteristics of high abrasion resistance and high folding crack resistance. An actinic radiation-curable inkjet ink provided herein contains a polymerizable compound (A) that polymerizes upon irradiation with actinic radiation, a photopolymerization initiator (B), and a gelling agent (C). The polymerizable compound (A) contains an amine-modified polymerizable compound (A1), and the photopolymerization initiator (B) contains ethoxy(2,4,6-trimethylbenzoyl)phenylphosphine oxide.

The invention relates to the field of rubber, in particular to toughened modified nitrile rubber and a preparation method thereof.Magnesium hydroxide is selected as a flame retardant, nano molybdenum oxide hybridized magnesium hydroxide is prepared with a hydrothermal method and epoxidized with gamma-(2, 3-epoxypropoxy) propyltrimethoxysilane, then epoxy-amino reaction is utilized, and the toughened modified nitrile rubber is obtained. Grafting a vanillin-based phosphorus-nitrogen synergistic flame retardant; the vanillin-based phosphorus-nitrogen synergistic flame retardant is prepared by taking bio-based vanillin as a raw material, firstly synthesizing a phosphorus-containing dialdehyde intermediate serving as a precursor from the bio-based vanillin and phenylphosphonic dichloride, then carrying out condensation reaction on the phosphorus-containing dialdehyde intermediate and cyclic imidization melamine, and then carrying out addition with DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide), and the cyclic imidization melamine is prepared from melamine and 1, 2-cyclohexanedicarboxylic anhydride. Cellulose nanocrystals are selected to reinforce and toughen nitrile rubber, a sodium periodate oxidation method is adopted to prepare dihydroformylated cellulose nanocrystals, and then aldehyde group-amino reaction is utilized to graft a vanillin-based phosphorus-nitrogen synergistic flame retardant.

The invention provides a method for constructing an aryl C-P bond through a reaction of an Ar-F compound of a nickel catalysis electron donating group, which comprises the following steps: in the presence of a nickel catalyst, an additive and alkali, carrying out a coupling reaction on a substituted aryl compound in a formula B and a compound in a formula C diphenylphosphine oxide in an organic solvent to generate an aryl phosphine oxide compound in a formula A, the reaction formula is shown in the specification, Ar is or, and R is an electron-donating group. The method disclosed by the invention has the effects that the substrate has universality, the operation is simple, the condition is mild, a noble metal catalyst and a phosphine ligand are not needed, the cost is low, and the yield is high.

The application relates to the technical field of catalysts, and discloses a palladium / alumina catalyst and a preparation method and application thereof. A Schiff base phosphine cyclodextrin ligand is synthesized through two-step reactions of nucleophilic substitution and Schiff base condensation, the molecular structure of the ligand covalently bridges the hydrophobic cavity of beta-cyclodextrin and the strong coordination site of diphenylphosphine through a rigid Schiff base bond; subsequently, the phosphine group of the ligand is coordinated with a palladium salt under a specific pH, and a uniform and stable palladium-ligand colloid precursor is formed under the assistance of a directing agent and a stabilizing agent; finally, the colloid is mixed with an alumina carrier for impregnation, drying, and a palladium / alumina catalyst is obtained. Through molecular design and process innovation, the problems of low activity, poor selectivity and insufficient stability of traditional catalysts are solved. When the catalyst is used for preparing hydrogen peroxide by hydrogenating anthraquinone, the hydrogenation efficiency is significantly improved, the selectivity is extremely high, and the cycle stability is excellent, so the catalyst has important industrial application value.

The present invention relates to a method for preparing triphenylphosphine, comprising performing heat treatment on a chlorodiphenylphosphine raw material at a temperature of 280-480°C to prepare triphenylphosphine, wherein the content of dichlorophenylphosphine in the chlorodiphenylphosphine raw material does not exceed 35 wt%, based on the total weight of the chlorodiphenylphosphine raw material.

The invention provides a perovskite quantum dot compound and a preparation method and application thereof. The preparation method of the perovskite quantum dot compound comprises the following steps: preparing a mixture containing a triphenylphosphine halide copolymer, carrier particles, a first cationic precursor and a second cationic precursor; the A comprises one or more of CH3NH3 +, CH3CH2NH3 +, (CH3) 2CHNH3 +, CH (NH2) 2 +, Ar-CH3CH2NH3 +, Li < + >, Na < + >, K < + >, Rb < + > and Cs < + >; b comprises one or more of Pb < 2 + >, Sn < 2 + >, Be < 2 + >, Mg < 2 + >, Ca < 2 + >, Sr < 2 + >, Ba < 2 + >, Zn < 2 + >, Ge < 2 + >, Fe < 2 + >, Co < 2 + > and Ni < 2 + >; x comprises one or more of Cl <->, Br <-> and I <->; after the reaction is finished, a powdery or granular perovskite quantum dot compound is obtained, perovskite quantum dots are dispersed in a triphenylphosphine halide copolymer, and the triphenylphosphine halide copolymer coats the surfaces of carrier particles. The preparation method is low in cost, energy-saving and simple.

The utility model discloses granular triphenylphosphine production equipment which comprises a main body assembly and a turnover assembly, the main body assembly comprises a drying bin, a door body and a base, the door body is located on one side of the drying bin, the base is fixed to the bottom of the drying bin, and the turnover assembly is arranged in the drying bin and comprises a turnover piece, a locking piece and a driving piece. The turnover assembly comprises a turnover part and a driving part, the turnover part is located in the drying bin, the locking part is arranged on the turnover part, and the driving part is arranged on one side of the turnover part. The position of the granular triphenylphosphine can be continuously changed in the drying process through overturning drying, it is ensured that hot air can evenly cover the surface and the interior of each particle, and therefore even drying of the particles is achieved, and the situation that some particles are excessively dried while other particles still contain much water is avoided.

The invention relates to a synthesis method of triphenylphosphine, which belongs to the technical field of organic synthesis, and comprises the following steps: Step 1: adding a solvent, magnesium chips and an initiator into a reaction bottle, and heating to 50-60 DEG C; 2, dropwise adding a mixed solution of benzene halide and phosphorus trichloride, and after addition is completed, carrying out a heat preservation reaction; 3, after the reaction is finished, the temperature is reduced to the room temperature, water is added for washing and layering, an organic phase is concentrated, the solvent is recycled, and triphenylphosphine is obtained. According to the method, benzene halide and phosphorus trichloride are used as raw materials and react with magnesium chips through a one-pot method in a solvent to directly synthesize triphenylphosphine, compared with a traditional synthesis method, a Grignard reagent does not need to be prepared step by step, high energy consumption caused by low-temperature reaction conditions during subsequent Grignard reagent addition is not needed, the process is safer and more efficient, energy consumption can be effectively reduced, and the method is suitable for industrial production. Compared with a traditional synthesis method, the method has the advantages of no high risk of a sodium method process, safety and environmental protection pressure relief, simple overall process, high yield and suitability for industrial large-scale production.

The invention discloses a kind of recycling polypropylene to prepare high-impact material and preparation method thereof, relate to the field of materials. When the present invention uses recycling polypropylene to prepare high-impact material, first, polypropylene is grafted with vinyl diphenylphosphine, then reacted with 1-(3-chlorophenyl)-2-propyn-1-ol, and then reacted with 6-(methyl formate) pyridine-3-boric acid to obtain modified polypropylene; Secondly, calcium carbonate pretreated with 3-aminopropyltrimethoxysilane and 3-thiophene carboxaldehyde are reacted, and thiophene, 6-(thiophene-2-yl) pyridine-2-carboxylic acid, and 6-(3-thienyl) pyridine-2-carboxaldehyde are polymerized on the surface of calcium carbonate to obtain modified calcium carbonate; Finally, recycled polypropylene, modified polypropylene, modified calcium carbonate, sodium cyanide, and bismaleimide are melt-blended, and then extrusion granulation is performed to obtain high-impact material; The high-impact material prepared by the present invention has good impact resistance, anti-aging performance and antibacterial performance.

The invention relates to a method for preparing triphenylphosphine, which comprises the following steps: a diphenylphosphine chloride raw material is subjected to heat treatment at the temperature of 280-420 DEG C to prepare triphenylphosphine, and at least part of phenylphosphine dichloride is removed in the heat treatment process.

The application discloses preparation of carbazolyl 3,5-dicyanopyridine derivatives, room temperature phosphor and anti-counterfeiting performance thereof. The preparation method comprises the following steps: adding ortho-, meta- or para-carbazolyl benzaldehyde and malononitrile into a reaction bottle, stirring and reacting under room temperature conditions with sodium hydroxide as a catalyst and anhydrous methanol as a solvent, and obtaining ortho-, meta- or para-carbazolyl 3,5-dicyanopyridine by separating and purifying the reaction crude product. Crystals of the three compounds are obtained by a solvent diffusion method with dichloromethane-petroleum ether as a solvent, and the crystal state room temperature phosphor material is obtained. The crystals are doped with urea / triphenylphosphine at a weight ratio of 1:100, the doped crystals are uniformly ground and mixed, and then heated to be molten, so that the host-guest doped phosphor material is obtained, and the novel material is used in the field of anti-counterfeiting patterns.

The invention provides a green preparation method and application of diphenyl phosphine oxide. The preparation method comprises the following steps: step 1, mixing diphenyl alkoxy phosphine, water and Lewis acid, and fully stirring for reaction to obtain a reaction solution containing diphenyl phosphine oxide and alcohol; step 2, distilling the reaction liquid, washing with water, standing, separating liquid, collecting an organic phase, drying the organic phase, and cooling and crystallizing to obtain diphenylphosphine oxide; and step 3, rectifying and purifying the distilled alcohol, and pumping the distilled acid and water washing liquid into a reaction kettle for cyclic catalysis. The diphenylalkoxyphosphine is used as a raw material and is subjected to hydrolysis reaction with water under the catalysis of the lewis acid to generate diphenylphosphine oxide and alcohol, the lewis acid can be continuously returned to the reaction kettle to participate in the reaction after being subjected to subsequent distillation, the synthesis process is simple, the atom economy is high, the reaction principle is simple, the conditions are easy to control, and the method is green and environment-friendly and can be used for industrial production.

The application belongs to the technical field of lithium secondary batteries, and discloses a lithium secondary battery electrolyte with high and low temperature performance and a lithium secondary battery.The electrolyte comprises a non-aqueous solvent, a lithium salt, a triphenyl phosphine alkenyl compound and a compound with a carbonyl group.The electrolyte of the application is formed by the joint action of the triphenyl phosphine alkenyl compound and the compound with a carbonyl group, wherein the triphenyl phosphine alkenyl compound can be reduced in preference to the solvent, and the compound with a carbonyl group can form a thin and uniform SEI film on the positive and negative electrode surfaces of the lithium secondary battery through synergistic action, complex with positive transition metal ions, passivate the positive electrode surface, inhibit metal dissolution, improve the low-temperature rate discharge performance of the battery, and improve the normal temperature and high-temperature cycle life.

The invention provides a preparation method of a novel chiral thiourea / phosphine bifunctional organic catalyst with a cis-cyclic 1, 2-phosphinamine skeleton and application of the novel chiral thiourea / phosphine bifunctional organic catalyst in an asymmetric catalytic reaction. The chiral organic catalyst is prepared by taking cis chiral 2-(diphenylphosphine)-1, 2, 3, 4-tetrahydro-1-naphthylamine and an isothiocyanate compound as raw materials through a one-step reaction under a mild condition. The chiral thiourea / phosphine bifunctional organic catalyst is simple to prepare and stable in property, and shows excellent catalytic activity and stereoselectivity in an asymmetric hydrosilylation reaction of o-amido benzophenone.

The invention provides a lipid peroxidation detection probe based on a perylene bisimide-triphenylphosphine structure and a preparation method and application of the lipid peroxidation detection probe, and belongs to the technical field of lipid peroxidation fluorescent probe design synthesis and visual imaging. The structural formula of the lipid peroxidation detection probe is # imgabs0. The structure of the lipid peroxidation detection probe is optimized on the basis of a perylene bisimide-triphenylphosphine compound Liperfluo, so that the stability of the lipid peroxidation detection probe is greatly improved; the method has good sensitivity and selectivity to ferroptosis marker lipid hydroperoxide, and the pretreatment of a test sample is simple; the method can be used for detecting ferroptosis caused by endogenous and exogenous fibrosarcoma cells; the specific regulation and control mechanism and the biological function of ferroptosis related metabolic diseases are researched; the compound is solid powder, is convenient to store and use, is simple in synthesis method, high in yield and low in cost, and has a good market application prospect.

The invention relates to a green synthesis method of triphenylphosphine, which belongs to the technical field of organic synthesis, and comprises the following steps: Step 1: adding a solvent, benzene and a catalyst aluminum trichloride into a reaction flask, heating to 25-30 DEG C, dropwise adding phosphorus oxychloride, after addition, carrying out heat preservation reaction, and after the reaction is finished, cooling to room temperature to obtain a reaction product; the heat preservation temperature is 25-30 DEG C, and the heat preservation time is 3-4 hours; 2, after the reaction is finished, water is added for washing and layering, an organic phase is concentrated, the solvent is recycled, and triphenylphosphine oxide is obtained; 3, reducing the triphenylphosphine oxide in a solvent through a reducing agent to obtain triphenylphosphine, wherein the reducing agent is a triethyl silane / oxine copper reduction system; and Step 4, after the reaction is finished, cooling to room temperature, adding water for washing and layering, concentrating an organic phase, and recovering the solvent to obtain the triphenylphosphine. The synthesis method is safer and more environment-friendly, the greenization of the process is embodied, the safety and environmental protection pressure is greatly relieved, the technological process is simple, the yield is high, and the synthesis method is suitable for industrial large-scale production.

The invention belongs to the technical field of polymer flame retardance, and relates to a fluoride-free anti-dripping functional flame retardant for polycarbonate as well as a preparation method and application thereof, in the chemical structural formula of the fluoride-free anti-dripping functional flame retardant for polycarbonate, n is 5-20, and M is Li, Na, K, Rb or Cs; the preparation method comprises the following steps: mixing a metal salt solution of 2, 2 '-disulfonic acid benzidine with an acid-binding agent, dropwise adding a phenylphosphonic dichloride solution, continuing to stir and react after dropwise adding, heating after reaction, dropwise adding a diphenyl silanediol solution, continuing to react after dropwise adding, and finally performing post-treatment to obtain the fluoride-free anti-dripping functional flame retardant for polycarbonate. According to the application of the flame-retardant polycarbonate, polycarbonate and the fluoride-free anti-dripping functional flame retardant for polycarbonate are subjected to melt blending, so that the flame-retardant polycarbonate is prepared. The functional flame retardant disclosed by the invention integrates multiple functions of flame retardance, molten drop resistance, carbon formation enhancement and the like, and flame-retardant polycarbonate prepared from the functional flame retardant realizes no molten drop by virtue of a self-enhanced ceramic carbon layer.