Description

(1-[3,5-Bis(1-Methylethyl)Phenyl]-1-Methylethyl)(1,1-Dimethylethyl) Peroxide is a high-purity, dialkyl aromatic peroxide used as a key initiator in polymerization processes. Its primary commercial value lies in its ability to provide controlled decomposition kinetics, enabling precise molecular weight and polymer architecture control. This product is essential for manufacturers in the polymer and specialty chemical industries seeking reliable, high-performance free-radical initiators for the production of resins, elastomers, and other advanced materials.

Application

• Polymerization Initiator: Primary use as a free-radical initiator for the production of polystyrene, polyethylene, and other vinyl polymers.
• Crosslinking Agent: Used in the curing and crosslinking of unsaturated polyester resins (UPR) for composites and fiberglass.
• Elastomer Synthesis: Critical for the manufacture of synthetic rubbers, including styrene-butadiene rubber (SBR) and ethylene-propylene-diene monomer (EPDM) rubber.
• Specialty Polymer Production: Enables the synthesis of high-performance engineering plastics and block copolymers with specific thermal and mechanical properties.
• Acrylic Resin Manufacturing: Used in the production of poly(methyl methacrylate) (PMMA) and other acrylic polymers.
• Adhesive & Coating Formulations: Serves as a curing agent in solvent-based and high-solid coating systems, as well as structural adhesives.

Basic Information

Product Name	(1-[3,5-Bis(1-Methylethyl)Phenyl]-1-Methylethyl)(1,1-Dimethylethyl) Peroxide
CAS No.	68527-47-9
Molecular Formula	C20H34O2
Molecular Weight	306.49 g/mol
Synonyms	Di-tert-butyl Peroxide Derivative; 1,1-Di-tert-butylperoxy-1-(3,5-diisopropylphenyl)ethane; Bis(1,1-dimethylethyl) (1-methyl-1-(3,5-bis(1-methylethyl)phenyl)ethyl) Peroxide; 3,5-Diisopropylcumyl tert-butyl peroxide; tert-Butyl 3,5-diisopropylcumyl peroxide; Peroxide initiator 68527-47-9; Aromatic dialkyl peroxide
EINECS	Contact for details

Quality Control

Our (1-[3,5-Bis(1-Methylethyl)Phenyl]-1-Methylethyl)(1,1-Dimethylethyl) Peroxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity, consistent activity, and reliable performance as a polymerization initiator. Certificates of Analysis (COA) detailing assay, purity, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat, sparks, and open flames. Keep away from reducing agents, strong acids, bases, and other incompatible materials. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). This product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Active Oxygen Content	Contact for details
Related Peroxides (HPLC)	≤ 1.0 %
Water Content (Karl Fischer)	≤ 0.1 %

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