Main applications of triphenylborane_Kain Industrial Additives

Background and overview^[1]

Triphenylborane can be used as a pharmaceutical synthesis intermediate. If triphenylborane is inhaled, move the patient to fresh air; if skin contact occurs, take off contaminated clothing, rinse the skin thoroughly with soap and water, and seek medical attention if you feel unwell; if eye contact occurs, seek medical attention. Separate eyelids, rinse with running water or saline, and seek medical attention immediately; if ingested, rinse mouth immediately, do not induce vomiting, and seek medical attention immediately.

Apply^[1-3]

Examples of triphenylborane applications are as follows:

1) Prepare a low surface energy antifouling coating for ships. Its raw materials include: modified silicone acrylic resin, chlorosulfonated polyethylene, polytetrafluoroethylene, vinylidene fluoride-hexafluoropropylene copolymer, epoxy Resin, water-based polyamide, zinc phosphate, carbon nanotubes, silicon nitride, nano-iron oxide, nano-zinc oxide, mica powder, cerium stearate, fiber fluff, chili powder, pepper, 3-(3,4-di Chlorophenyl)-1,1-dimethylurea, pyridine triphenylborane, 4,5-dichloro-2-n-octyl-3-isothiazolinone, xylene, ethyl acetate, acetone, Ethylene glycol butyl ether, cyclohexanone, auxiliaries. The special low surface energy antifouling paint for ships proposed by the present invention has high strength, good antifouling effect, is resistant to seawater corrosion during use, and is environmentally friendly.

2) Preparation of a metal-free boron-doped carbon material hydrogen peroxide electroreduction catalyst and preparation method. Mix triphenylborane and carbon materials according to the mass ratio of 3~5:97~95, grind them in a ball mill at 3000-5000 rpm for 3-5 hours, put them into a heating furnace, and pass argon gas first 10 minutes, react at 750-850°C for 5-6 hours under argon protection, and cool to room temperature under argon protection to obtain a metal-free boron-doped carbon material hydrogen peroxide electroreduction catalyst. In the present invention, electron-deficient boron is used to replace carbon to form a B-C bond, which generates excess positive charges near the boron atom, which is beneficial to adsorbing H2O2. The sources of raw materials are wide and the price is low. Boron-doped activated carbon catalysts not only have high electrochemical activity, but also have good stability and strong poison resistance. Since there are no precious metals or transition metals, the H2O2 hydrolysis reaction can be inhibited and the generation of oxygen can be reduced. Greatly improve the electro-oxidation performance and utilization rate of H2O2.

3) Method for preparing an aviation leather seat cushion and metal coating: add water, emulsifier sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, and methacrylic acid, add monomer A, and emulsify for 35 minutes , add 5.3g of potassium persulfate solution, drop for 2h, add 0.15g of triethylenetetramine, keep warm and stir for 4h, add 2g of dodecyltriphenylphosphonium chloride, 0.6 7-octenyltrimethoxysilane g and 2-hydroxyphosphonoacetic acid, stir and react for 2 hours to obtain core layer emulsion; add triphenylborane dropwise to the core layer emulsion, keep warm and stir for 2 hours, then add trimethylolpropane trimethacrylate dropwise , keep warm and stir for 1.5h, cool down to 50℃, add the emulsifier sodium dodecylbenzene sulfonate and fatty alcohol polyoxyethylene ether into a three-necked bottle, stir for 30min, add ammonia to adjust the pH value to 8, and obtain aviation Leather seat cushions and metal coatings; the resulting coatings make up for the shortcomings of traditional aviation leather seat cushions and metal coatings.