Titanium Dioxide Acetic Acid Citric Acid Sodium Hydroxide Oxalic Acid Ethyl Acetate

All Categories

Encyclopedia |

Market Inquiry|

Supplier|

About Globalchemx

Brominated polystyrene

CAS No.: 88497-56-7

Formula: (C10H13Br)n

Molecular Weight: 213.11422

Suppliers: All(0) China Suppliers(8) Products(24)

Description
Basic Info
Safety Info
Price
Related Product
Supplier Reference

What is Brominated polystyrene

**Introduction to Brominated Polystyrene** Brominated polystyrene (BPS) is a high-performance brominated flame retardant widely used in engineering plastics, such as polyamides (PA), polyesters (PBT, PET), and other thermoplastics. With excellent thermal stability and low impact on polymer properties, BPS effectively inhibits combustion by releasing bromine radicals that interrupt the fire cycle. Unlike some traditional brominated flame retardants, BPS is polymeric, ensuring minimal migration and enhanced environmental safety. It complies with RoHS and REACH regulations, making it a preferred choice for electronics, automotive components, and electrical applications requiring UL94 V-0 flame resistance. Its non-reactive nature ensures compatibility with various polymers while maintaining mechanical and electrical performance.

Preparation Process: Brominated polystyrene (BPS) is prepared by brominating polystyrene (PS) using bromine or bromine compounds. The typical method involves dissolving PS in a chlorinated solvent (e.g., dichloroethane) under nitrogen. Bromine is added dropwise at 20–50°C, often with a Lewis acid catalyst (e.g., aluminum chloride or iron powder) to enhance reactivity. The reaction mixture is stirred for several hours, then quenched with water or sodium bisulfite to remove excess bromine. The product is precipitated in methanol, filtered, washed, and dried. Alternatively, brominated monomers (e.g., bromostyrene) can be polymerized to obtain BPS. The degree of bromination depends on reaction conditions.

Usage Scenarios: Brominated polystyrene (BPS) is primarily used as a flame retardant in various polymer applications, particularly in electronics, textiles, and construction materials. Its high thermal stability and low migration properties make it suitable for thermoplastics like polypropylene (PP), polyethylene (PE), and polystyrene (PS). BPS effectively reduces flammability by releasing bromine radicals that interrupt combustion. It is favored over other brominated flame retardants due to its lower toxicity and environmental persistence. Common applications include circuit boards, wire insulation, and automotive components. Additionally, BPS complies with safety regulations such as RoHS and REACH, ensuring its use in consumer and industrial products without significant health or environmental risks.

Brominated polystyrene Basic Info

Chemical Name Brominated polystyrene

Synonyms BPS;BROMO PS;POLYSTYRENE-BR;BROMOPOLYSTYRENE;BROMOPOLYSTYRENE RESIN;POLYSTYRENE BROMINATED;Brominated polystyrene;4-BROMO POLYSTYRENE RESIN;Polystyrene resin,bromide;BPS (Brominated polystyrene)

CAS No. 88497-56-7

Molecular Formula (C10H13Br)n

Molecular Weight 213.11422

PSA -

LogP -

Safely Info

RTECS -

Hazard Class -

Safety Statements 22-24/25

HS Code -

WGK Germany -

Packing Group -

RIDADR -

Risk Statements -

Hazard Codes -

Caution Statement P264-P280-P305+P351+P338-P337+P313P

Hazard Declaration H319

Symbol GHS07

Signal Word Warning

Brominated polystyrene Price

Here is a rough price range for Brominated Polystyrene in the 18 countries listed. Note that prices can vary significantly based on factors like purity, quantity, and supplier agreements. If no specific data is available, it is marked as "No results":

1. **United States**: $5,000 - $10,000 per metric ton
2. **China**: $4,000 - $8,000 per metric ton
3. **Russia**: No results
4. **Germany**: $6,000 - $12,000 per metric ton
5. **India**: $4,500 - $9,000 per metric ton
6. **Japan**: $7,000 - $13,000 per metric ton
7. **Brazil**: No results
8. **South Korea**: $6,500 - $11,000 per metric ton
9. **Philippines**: No results
10. **United Kingdom**: $6,000 - $12,000 per metric ton
11. **France**: $6,500 - $12,500 per metric ton
12. **Mexico**: No results
13. **Canada**: $5,500 - $11,000 per metric ton
14. **South Africa**: No results
15. **Egypt**: No results
16. **Turkey**: No results
17. **Thailand**: No results
18. **Indonesia**: No results

These ranges are approximate and based on general market trends. For accurate pricing, contact suppliers or industry reports.