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Vazo™ 64, is an oil-soluble, azo-based free radical initiator designed for medium-temperature polymerization processes. Its controlled decomposition temperature makes it suitable for producing high -performance polymers and specialty materials in a range of industries.
Vazo™ 64 is an azonitrile-based compound (AIBN) that decomposes when exposed to heat or light to form nitrogen gas and free radical intermediates. Its most common use is as a radical initiator in free radical polymerization reactions to produce polymers with low branching, cross-linking, and polydispersity. Vazo™ 64 is not sensitive to pH, will not undergo redox reactions, and can be mixed with several other initiators without undergoing radical-induced decomposition.
In addition, Vazo™ 64 generates free radicals that do not abstract hydrogen from growing polymer chains, giving chemists more control over the polymerization reaction and the polymer’s final structure and molecular weight. Vazo™ 64 is generally safer than organic peroxide initiators and can produce polymer structures with higher specificity.
Like other Vazo™ grades, the number in the grade name indicates the 10-hour half-life temperature. Therefore, Vazo™ 64 has a 10-hour half-life in solution at 64°C and is recommended for polymerizations that occur at 45°C–90°C. However, it is possible to use it outside of this range. Vazo™ 64 should be transported and stored away from light, flames, and ignition sources at a maximum of 24°C to ensure product quality and safety.
Molecular weight (g/mol): 162.21
Appearance: White noodles
Purity (%, min): 98.0
Water (wt%, max): 0.5
Acetone insolubles (wt%, max): 0.1
Color, APHA (max): 15
Iron (ppm, max): 20
CAS number: 78-67-1
Primary Chemistry: Azobisisobutyronitrile (AIBN)
Primary Chemistry: Azobisisobutyronitrile (AIBN)
Free radical source
Decomposition is not pH sensitive
Allows for higher control of polymerization and polymer structure
Safer than other common radical initiators, such as organic peroxides
Will not undergo redox reactions
Can be mixed with other radical initiators without undergoing radical-induced decomposition
Poor polymerization reaction yield
Generation of color-forming impurities during polymerization
Polymer-chain defects
Branching and cross-linking during polymerization
Health and safety hazards associated with using organic peroxide initiators
Acrylic Polymer Production: Used for polymerizing monomers to create resins and coatings for automotive, industrial, and architectural applications. Acrylic polymers derived from Vazo™ 64 exhibit high durability, clarity, and weather resistance.
Vinyl Polymer Manufacturing: Initiates the polymerization of vinyl chloride and other monomers to produce PVC and related material for construction, healthcare, and packaging industries.
Elastomers and Rubbers: Enables the production of synthetic elastomers used in tires, seals, and gaskets. Vazo™ 64 ensures uniform cross-linking, resulting in enhanced mechanical properties.
Adhesives and Sealants: Contributes to the development of pressure-sensitive adhesives and structural sealants with strong bonding properties and chemical resistance.
Coatings: Facilitates the production of polymer-based coating for metals, wood, and plastics, offering protective and decorative properties.
Specialty Resins: Used in creating high performance resins for aerospace, automotive, and industrial applications. These resins offer excellent heat resistance and mechanical strength.
Electronic Materials: Support the synthesis of polymers for electronic components such as circuit boards, insulating materials, and conductive coatings.
Medical Polymers: Enables the production of biocompatible polymers for medical devices, surgical tools, and drug delivery systems.
Water Treatment Polymers: Aids in synthesizing flocculants and coagulants for efficient water purification processes.
Textile Finishes: Used in polymer formulations that enhance fabric durability, wrinkle resistance, and water repellency.
Oilfield Chemicals: Contributes to the development of polymers used in enhanced oil recovery, drilling fluids, and cementing operations.
Agricultural Applications: Assists in the production of controlled-release fertilizers and pesticides, ensuring efficient nutrient and chemical delivery.
Paper Coatings: Enables the creation of polymer-based coatings that enhance paper strength, gloss, and printability.
Photographic Films and Papers: Facilitates the production of polymers used in traditional and digital imaging technologies.
Food Packaging Films: Used in synthesizing food safe polymers for flexible packaging that offers barrier protection and extends shelf life.
Automotive Polymers: Supports the development of lightweight, high-strength polymers for automotive components, improving fuel efficiency and durability.
Cosmetic and Personal Care Polymers: Used in formulating polymers for thickening, film formation, and water resistance in skincare and cosmetic products.
Foam Production: Aids the creation of rigid and flexible foams for insulation, cushioning, and packaging, applications.
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