4,4'-Bis(4-aminophenoxy)biphenyl

4,4’-(1,1’-Biphenyl-4,4’-diyldioxy)dianiline is a diamine component of polyimide aerogels, super fibers, and thermoplastic shape memory polymers.1,2,3WARNING This product is not for human or veterinary use.

White powder

4,4'-Bis(4-aminophenoxy)biphenyl, it is a kind of material type chemical intermediate product of excellent property, it is one of synthesis of polyimides important source material, also can be used for fire resistant polyimide carbon fibre reinforced composite, or the important source material of synthesis polymaleimide.

The preparation method includes the steps that with biphenol and p-nitrchlorobenzene as raw materials, a salt forming agent and a strong-polarity aprotic solvent are added and mixed under nitrogen protection, a reflux reaction is performed for 3-5 h at 130-140°C, filtration is performed at the high temperature, filtration residues are removed, deionized water is dropwise added into filtrate, and cooling, filtration, washing and drying are performed to obtain 4,4'-Bis(4-aminophenoxy)biphenyl.