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4,4'-(9-Fluorenylidene)diphenol CAS:3236-71-3

4,4-(9-Fluorenylidene)diphenol Introduction: 4,4-(9-Fluorenylidene)diphenol, is an important organic chemical raw materials,it is a white powdery substance. Preparation: Using mercaptopropane sulfonic acid as catalyst, the molar ratio of phenol to 9-fluorenone is 6-25: 1, diphenylmethane is...

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4,4-(9-Fluorenylidene)diphenol


Introduction:

4,4-(9-Fluorenylidene)diphenol, is an important organic chemical raw materials,it is a white powdery substance.

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Preparation:

Using mercaptopropane sulfonic acid as catalyst, the molar ratio of phenol to 9-fluorenone is 6-25: 1, diphenylmethane is added as a reaction solvent and the reaction temperature is 55 ℃ to obtain 4,4-(9-Fluorenylidene)diphenol of high efficiency and high purity.

Package

The package of all our chemical products reaching up to the industry standard, we usually use kraft drums or woven bags for our powder state products.

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Application:

4,4-(9-Fluorenylidene)diphenol are  used in photoconductive photoreceptors, high performance polymers, photoconductors, photosensitive and heat sensitive polymers, heat transfer materials, flame retardant thermoplastic resins, optical disks, low dyadic organic optics, High temperature performance of radiation polymers, thermoplastic thermal expansion resin, electrical conductor insulation and high temperature coatings. Polymer made of bisphenol fluorene with low insulation constant, high glass transition temperature and excellent thermal stability can be used as interlayer insulator coating and passivation layer for protecting microelectronic circuits

 


 

4,4-(9H-fluorene-9,9-diyl)diphenol


Introduction:

4,4-(9H-fluorene-9,9-diyl)diphenol is a bisphenol compound having a Cardo skeleton structure prepared by condensation reaction of 9-fluorenone and phenol in the presence of an acidic catalyst.it is a white powdery substance,Density 1.288g/cm ,Flash point 241℃,Melting point 224-226℃,soluble in organic solvents, insoluble in water


Preparation:

Sulfonic acid cation exchange resin as the catalyst for condensation reaction, according to the molar ratio of phenol to ketone 5: 1, the catalyst accounted for 12.2% -36.9% of the total material, adding toluene as a water entrainer, and then adding the right amount of mercapto cocatalyst can be high Quality 4,4-(9H-fluorene-9,9-diyl)diphenol


Usage:

4,4-(9H-fluorene-9,9-diyl)diphenol is a versatile chemical raw material mainly used in the synthesis of polycarbonate, epoxy, polyether or polyester resins and flame retardants. The 4,4-(9H-fluorene-9,9-diyl)diphenol as a raw material for a variety of polymer materials in the chemical, light industry, coatings, CD-ROM, shop conductor insulation, aircraft structural materials, missile warheads, shell and other military, aerospace, electronics, automotive industry and other modern Science and technology in various fields has been widely used. Therefore, 4,4-(9H-fluorene-9,9-diyl)diphenol products for the manufacture of new synthetic materials, application and development of great significance

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