Styrene Monomer
CAS Number: 100-42-5
Styrene monomer (vinylbenzene) is a fundamental building block for polystyrene, ABS, SBR rubber, and styrenic copolymers. It undergoes free-radical, anionic, and cationic polymerization to produce a wide range of commercial polymers. High-purity grades with controlled inhibitor levels are available for emulsion, suspension, and bulk polymerization processes.
Technical Specifications
| appearance | Colorless to pale yellow transparent liquid |
| purity (%) | ≥99.5 |
| color (Pt-Co) | ≤10 |
| water content (%) | ≤0.05 |
| inhibitor (TBC, ppm) | 10–15 |
Applications
- Polystyrene (GPPS/HIPS) manufacturing
- ABS and SAN copolymer production
- Styrene-butadiene rubber (SBR) synthesis
- Unsaturated polyester resin crosslinking
- Emulsion and suspension polymerization
Key Features
- High purity with tightly controlled inhibitor level for predictable polymerization
- Low peroxide content ensures safe handling and consistent initiation
- Broad compatibility with vinyl, acrylate, and diene co-monomers
- Bulk, suspension, emulsion, and solution polymerization grades available
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CAS Number
100-42-5
Category
Polymer Synthesis ChemicalsAvailability
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