38791-73-0

Basic information

• Product Name: 4,4'-Bis-(3,4-dicyanophenoxy)diphenylmethan
• Synonyms: 4,4'-Bis-(3,4-dicyanophenoxy)diphenylmethan
• CAS NO: 38791-73-0
• Molecular Weight: 452.472
• Mol File: 38791-73-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 4,4'-Bis-(3,4-dicyanophenoxy)diphenylmethan(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-Bis-(3,4-dicyanophenoxy)diphenylmethan(38791-73-0)
• EPA Substance Registry System: 4,4'-Bis-(3,4-dicyanophenoxy)diphenylmethan(38791-73-0)

Safety Data

• Hazardous Substances Data: 38791-73-0(Hazardous Substances Data)

Upstream product

• 31643-49-9 4-Nitrophthalonitrile 
• 620-92-8 bis-(4-hydroxyphenyl)methane 

Relevant articles and documents

Promoting effect of methyne/methylene moiety of bisphenol E/F on phthalonitrile resin curing: Expanding the structural design route of phthalonitrile resin

In this paper, three phthalonitrile (PN) model compounds containing benzene ring-linked alkyl units, bisphenol A (methyl) phthalonitrile monomer (BPAh), bisphenol E (methyne) phthalonitrile monomer (BPEh) and bisphenol F (methylene) phthalonitrile monomer (BPFh), were synthesized. It was confirmed that methylene/methyne could effectively promote the curing reaction of phthalonitrile. Rheology analysis showed that the promotion effect of methylene is stronger than that of methyne, but methyl has no obvious promotion effect. The effect of DPPH on the reaction rate, added considerable evidences that the curing reaction of BPEh and BPFh involved a free radical process. Qualified thermal properties were investigated by Dynamic mechanical analysis (DMA) and thermal gravimetric analysis (TGA). For post-cured resin of BPEh and BPFh, the Tg is more than 500 °C, the T5% were observed at 495 °C and 491 °C, and the char yield in 800 °C reached 73.1% and 71.9% respectively.

Aromatic bis(ether phthalis anhydride) compounds

Aromatic bis(ether anhydride)s are prepared from the hydrolysis of the reaction product of a nitro-substituted phenyl dinitrile with a metal salt of a dihydroxy aryl compound in the presence of a dipolar aprotic solvent.