Alpha-methyl Styrene (ams): Key Monomer For High-performance Resins, Plastics, And Coatings

Key Features:

• Chemical Formula: C₉H₁₀ (C₆H₅C(CH₃)=CH₂)
• Molecular Weight: 118.18 g/mol
• Appearance: Clear, colorless liquid
• Odor: Aromatic, slightly sweet
• Boiling Point: 165°C (329°F)
• Flash Point: 46°C (114°F)
• Density: Approximately 0.91 g/cm³

Applications and Uses:

1. Resins and Plastics:

   • Used as a co-monomer with other monomers like styrene, acrylonitrile, and butadiene to produce Acrylonitrile Butadiene Styrene (ABS) and other styrenic resins. AMS improves the heat resistance, impact strength, and durability of these polymers, making them suitable for automotive parts, electrical appliances, and other consumer goods.

2. Coatings and Adhesives:

   • Incorporated in coatings, varnishes, and adhesives to enhance their thermal stability and mechanical properties. AMS-modified resins offer better gloss, hardness, and resistance to solvents and chemicals.

3. Chemical Intermediates:

   • Serves as a raw material in the synthesis of specialty chemicals such as plasticizers, stabilizers, and surfactants. AMS can also be hydrogenated to produce cumene, which is a precursor to phenol and acetone.

4. Rubber Compounding:

   • Utilized in the production of synthetic rubbers to improve elasticity, durability, and resistance to degradation.

5. Cosmetics and Fragrances:

   • Occasionally used in small amounts in the formulation of cosmetics and fragrances due to its unique aromatic properties.

Advantages:

• Improved Heat Resistance: Enhances the thermal stability of plastics and resins, making them suitable for high-temperature applications.
• Chemical Resistance: Provides good resistance against a range of chemicals, solvents, and environmental factors.
• Enhanced Mechanical Properties: Contributes to increased hardness, impact strength, and durability of end products.

Safety and Handling:

• Hazards: Flammable liquid and vapor. Can cause skin and eye irritation. Harmful if inhaled or ingested.
• Precautions: Use with proper ventilation. Avoid contact with skin and eyes. Wear appropriate personal protective equipment (PPE) such as gloves, goggles, and protective clothing.
• Storage: Store in a cool, dry, well-ventilated area, away from heat sources, open flames, and incompatible materials such as strong oxidizing agents.

Regulatory Information:

• Compliance: AMS is regulated under various safety and environmental standards, including the U.S. Environmental Protection Agency (EPA), European Chemicals Agency (ECHA), and other global regulations.
• Safety Data Sheet (SDS): Available from suppliers, detailing the safe handling, storage, and emergency measures for AMS.

Packaging:

• Typically available in 200-liter steel drums, 1000-liter IBC totes, or bulk tankers.