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

Bisphenol fluorene Specification: Bisphenol fluorene is a white powdery substance,Melting point224~225.5℃, Soluble in toluene, Acetonitrile and other solvents. In the catalyst depositIn the next,FluorenoneversusbenzenephenolthroughShrinkTogether anti-shouldcansystemtake9,9-bis...

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Bisphenol fluorene


Specification:

Bisphenol fluorene is a white powdery substance,Melting point224~225.5℃,
Soluble in toluene, Acetonitrile and other solvents. In the catalyst depositIn the next,FluorenoneversusbenzenephenolthroughShrinkTogether anti-shouldcansystemtake9,9-bis (4-Hydroxyphenyl)Fluorene(Referred to bisphenol fluorene).

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Preparation:

Abstract of A polyalkylene glycol is added to a reaction mixture obtained by a condensation reaction of fluorenone with phenol in the presence of ss-mercaptopropionic acid and HCl gas, excess phenol is then distilled off, and the residue is crystallised out from a solvent which is miscible with the polyalkylene glycol used. After recrystallisation and treatment with water, bisphenol fluorene is obtained in the form of a white crystalline product in a purity of above 99%.

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:

Bisphenol fluorene epoxy resin modifier, increased rigidity, improved heat resistance, in the aircraft structure, missile warheads and shells are widely used

Bisphenol fluorene and polycarbonate prepared by optical reaction, the heat resistance can be increased 20-90 ℃, and the transparency of this material is better, and has a higher refractive index, can be used for optical equipment manufacturing, aerospace, Automotive, optoelectronics, communications, building materials, medical and electrical fields

 

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