2,3-Dimethyl-2,3-diphenylbutane , 95% , 1889-67-4

CAS NO.：1889-67-4

Empirical Formula: C18H22

Molecular Weight: 238.37

MDL number: MFCD00053713

EINECS: 217-568-2

PRODUCT Properties

• Melting point: 90-110 °C
• Boiling point: 335.97°C (estimate)
• Density: 0.9859 (estimate)
• vapor pressure: 0.015Pa at 20℃
• refractive index: 1.5413 (estimate)
• storage temp.: Sealed in dry,2-8°C
• form: Flakes, Crystalline Powder or Chunks
• color: White to light yellow
• Water Solubility: insoluble
• InChI: InChI=1S/C18H22/c1-17(2,15-11-7-5-8-12-15)18(3,4)16-13-9-6-10-14-16/h5-14H,1-4H3
• InChIKey: HGTUJZTUQFXBIH-UHFFFAOYSA-N
• SMILES: C(C1=CC=CC=C1)(C)(C)C(C1=CC=CC=C1)(C)C
• LogP: 6.68 at 25℃
• NIST Chemistry Reference: Benzene, 1,1'-(1,1,2,2-tetramethyl-1,2-ethanediyl)bis-(1889-67-4)
• EPA Substance Registry System: 2,3-Dimethyl-2,3-diphenylbutane (1889-67-4)

Description and Uses

2,3-Dimethyl-2,3-diphenylbutane is one of the decomposition of Dicumylperoxide (DCP). Diallyl orthophthalate (DAOP) is a reactive plasticizer initiated by 2,3-dimethyl-2,3-diphenylbutane for improving polyphenylene oxide (PPO) processing.

2,3-Dimethyl-2,3-diphenylbutane (DMDPB) is a new type of polymer material additive. It could used as a flame retardant synergist for polymer materials. This material can reduce the amount of flame retardant, reduce the effect of flame retardant on polymer performance, and endow polymer materials with flame retardant properties. It can also be used as a catalyst or initiator for polymer crosslinking, grafting, and copolymerization, and can be used for the modification of various polymer materials. For example, the thermolysis of 2,3-dimethyl-2,3-diphenylbutane at temperatures ranging from 220 to 310 °C is used to initiate the radical-mediated graft addition of vinyltriethoxysilane (VTEOS) to polyethylene[1].

Safety

• Symbol(GHS): GHS02
• Signal word: Warning
• Hazard statements: H226
• Precautionary statements: P501-P240-P210-P233-P243-P241-P242-P280-P370+P378-P303+P361+P353-P403+P235
• Safety Statements: 24/25
• HS Code: 29029090