599205-72-8

Basic information

• Product Name: C₄₀H₂₆N₄O₄
• Synonyms: C₄₀H₂₆N₄O₄
• CAS NO: 599205-72-8
• Molecular Weight: 626.671
• Mol File: 599205-72-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₄₀H₂₆N₄O₄(CAS DataBase Reference)
• NIST Chemistry Reference: C₄₀H₂₆N₄O₄(599205-72-8)
• EPA Substance Registry System: C₄₀H₂₆N₄O₄(599205-72-8)

Safety Data

• Hazardous Substances Data: 599205-72-8(Hazardous Substances Data)

Upstream product

• 85-44-9 phthalic anhydride 

Relevant articles and documents

Poly(phthalazinone ether ketone) ionomers synthesized via N-C coupling reaction for fuel cell applications

Sulfonated poly(phthalazinone ether ketone)s with different sulfonation degrees were directly polymerized via N-C coupling reaction. The resulting polymers with inherent viscosity ranging from 0.97 to 1.29 dL/g were characterized by 1H NMR and elemental analysis. Membranes were obtained by casting 5% solution in DMAc (N,N′-dimethylacetamide) of the polymers at 60°C. Because of their specially designed structure, the membranes of the polymer have excellent thermal and oxidative stability. TGA curves showed that the loss of sulfonic groups occurred at around 300°C. The membranes demonstrated excellent acidic stability; their forms could be maintained for at least 47 h when subjected to Fenton's reagent (30 ppm FeSO4 in 30% H2O2) at 25°C. For the polymer with a sulfonation degree of 2, the highest water uptake of 46% at 80°C and the best proton conductivity of 1.77 × 10-2 S/cm at 95°C 100% relative humidity were obtained, and a low Ea of 5.6 kJ/mol was calculated.