Description

Benzene, 1-Ethenyl-4-Methyl-, Polymer With 2-Methyl-1-Propene, Brominated is a brominated aromatic polymer derived from p-methylstyrene and isobutylene, valued for its flame-retardant and thermal stability properties. This specialty additive is engineered to enhance the fire safety and performance characteristics of various polymeric materials without significantly compromising their mechanical integrity. It is a critical component for formulators and manufacturers in the plastics, rubber, and coatings industries seeking to meet stringent safety and regulatory standards.

Application

• As a reactive or additive flame retardant in engineering thermoplastics such as polyamides (PA), polyesters (PBT, PET), and polycarbonate (PC) blends.
• Enhancing the fire resistance of thermoplastic elastomers (TPEs) and rubber compounds used in automotive and industrial components.
• Formulation of flame-retardant coatings and adhesives for electronic enclosures, construction materials, and wire & cable applications.
• Modification of unsaturated polyester resins for composites in transportation and construction sectors.
• Improving the thermal stability and char formation of polymeric systems in high-temperature environments.
• Use in specialty polymer alloys where a balance of flame retardancy, processability, and physical properties is required.

Basic Information

Product Name	Benzene, 1-Ethenyl-4-Methyl-, Polymer With 2-Methyl-1-Propene, Brominated
CAS No.	134737-24-9
Molecular Formula	(C9H10·C4H8·Br)x
Molecular Weight	Contact for details
Synonyms	Brominated Poly(p-methylstyrene-co-isobutylene); Poly(4-methylstyrene-co-isobutylene), brominated; Brominated 4-Methylstyrene/Isobutylene Copolymer; FR-1808 (potential trade name); p-Methylstyrene-Isobutylene Brominated Copolymer; Brominated Aromatic Polymer; Isobutylene/p-Methylstyrene Brominated Copolymer
EINECS	Contact for details

Quality Control

Our production of Benzene, 1-Ethenyl-4-Methyl-, Polymer With 2-Methyl-1-Propene, Brominated adheres to a strict quality management system. Each batch is characterized for critical parameters including bromine content, molecular weight distribution, thermal stability, and residual monomers to ensure consistent performance as a flame retardant. Certificates of Analysis (COA) documenting these specifications are provided with every shipment to guarantee traceability and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Bromine Content	Contact for details
Thermal Decomposition Temperature (Td5%)	> 300 °C
Moisture Content	< 0.5 %
Particle Size (Typical)	Contact for details

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