Semiconductor Display Materials

1. Physicochemical Properties

• Melting Point: 252–258°C
• Boiling Point: 634.3±50.0°C (predicted)
• Density: 1.229±0.06 g/cm³ (predicted)
• Appearance: White to light yellow/orange solid
• Storage: Keep in a sealed, dark container at room temperature.
• Acidity (pKa): 1.57±0.30 (predicted)

2. Synthesis Method

The compound is synthesized via alkylation of diphenylamine with 1-methylstyrene, optimized with a specific catalyst. Key conditions include:

Molar ratio of 1-methylstyrene to diphenylamine (2.6:1)

Catalyst concentration (14% by mass of diphenylamine)

Reaction temperature (160°C)

Reaction time (2.5 hours)

This yields a product with >97% purity.

3. Applications

Primarily used in organic light-emitting diode (OLED) devices as a hole-injection layer (HIL) material due to its electron-rich structure. It enhances charge transport efficiency and stability in OLEDs.

4. Safety Information

• Hazard Statements: Classified under GHS05 and GHS02 (“Danger”).
• Precautions: Follow safety protocols (e.g., P501. P240) to avoid skin/eye contact and inhalation.
• Customs Code: 2921599090.

This summary provides a concise overview of the compound’s key attributes for research and application purposes.

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