Description

p-Isopropyl-α-Methylstyrene is a high-purity, highly volatile aromatic hydrocarbon derivative, primarily valued as a key monomer and intermediate in advanced polymer synthesis. Its unique chemical structure, featuring both an isopropyl and an α-methyl group on the styrene backbone, makes it essential for modifying polymer properties such as glass transition temperature, thermal stability, and reactivity. This compound is critically needed by R&D chemists and production engineers in the specialty polymer, advanced resin, and fine chemical synthesis industries.

Application

• Specialty Polymer Monomer: Used in the synthesis of modified polystyrene and poly-α-methylstyrene copolymers to enhance heat resistance and mechanical properties.
• Thermoset Resin Intermediate: Serves as a reactive diluent and cross-linking agent in the production of high-performance unsaturated polyester and vinyl ester resins.
• Fine Chemical Synthesis: Acts as a versatile building block for pharmaceuticals, agrochemicals, and fragrance ingredients due to its reactive vinyl group.
• Adhesive & Sealant Formulations: Incorporated to improve the tack, peel strength, and environmental resistance of pressure-sensitive and structural adhesives.
• Oilfield Chemistry: Utilized in the synthesis of specialty surfactants and flow improvers for enhanced oil recovery applications.
• Coatings Industry: Employed in the manufacture of specialty acrylic and alkyd coatings to improve drying time, hardness, and chemical resistance.

Basic Information

Product Name	p-Isopropyl-α-Methylstyrene
CAS No.	2388-01-4
Molecular Formula	C12H16
Molecular Weight	160.26 g/mol
Synonyms	1-Isopropyl-4-(1-methylethenyl)benzene; 4-Isopropyl-α-methylstyrene; p-(1-Methylethenyl)cumene; α-Methyl-p-isopropylstyrene; 4-(1-Methylethyl)-α-methylstyrene; Cumene, p-vinyl-α-methyl-; Isopropenylcumene
EINECS	219-211-4

Quality Control

Our p-Isopropyl-α-Methylstyrene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis including identity confirmation, purity assay, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with customer specifications and relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Recommended storage temperature is 2-8°C to minimize volatility and polymerization. Keep container tightly sealed when not in use to prevent evaporation and contamination.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (20°C)	1.530 - 1.534
Density (20°C)	0.900 - 0.910 g/mL
Related Substances (GC)	Total impurities ≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.