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Vazo™ 52 Low-Temperature Initiator
Vazo™ 52 is an oil-soluble, azonitrile free radical initiator used in low-temperature polymerizations of resins and polymers.
Fulfilled By ChemPoint
- Manufacturer: Chemours
- Product Line: Vazo™ Free Radical Initiators
- Product: Vazo™ Free Radical Initiators
- Industries: Care Chemicals | Coatings | Elastomers
- Authorized Countries: Austria | Benelux | Canada | France | Germany | Italy | Mexico | Spain | Switzerland | United Kingdom | United States
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Overview
Vazo™ 52 is a substituted azonitrile compound that decomposes when exposed to heat or light to form nitrogen gas and free radical intermediates. The free radicals generated by Vazo™ 52 are commonly used to initiate free radical polymerization reactions with vinyl monomers. Vazo™ 52 has the lowest decomposition temperature of the Vazo™ products and has a 10-hour half-life in solution at 52°C, making it an ideal initiator for low-temperature polymerization, halogenation, and oxidation reactions.
Polymerization initiated by the Vazo™ 52 initiator gives chemists more control of the reaction and final product than polymerizations initiated with other initiators, such as organic peroxides. This proves useful in producing specialty resins for applications in the transportation, water treatment, construction, electronics, medical, paper, textile, and personal care industries.
Vazo™ 52 may be used to polymerize several types of monomers, including acrylic and vinyl monomers, such as vinyl chloride, vinylidene chloride, acrylonitrile, acrylic acid, acrylamide, and methyl methacrylate. To ensure safety and product quality, Vazo™ 52 requires storage at lower than 10°C due to the low decomposition temperature.
Specifications
Molecular weight, g/mol: 248.37
Appearance: White, crystalline solid
Purity, min %: 98.0
Water, max wt%: 0.5
Acetone insolubles, max wt%: 0.15
APHA color, max: 25
Iron, max ppm: 20
Primary Chemistry: 2,2'-Azobis(2,4-dimethylpentanenitrile)
Features & Benefits
Generates free radicals at low temperatures
Produces nitrogen gas, useful as a blowing agent
Allows for more control of polymerization and final polymer structure
Safer than organic peroxide initiators
Not sensitive to pH
Will not undergo radical-induced decomposition that other types of initiators cause
Will not react with solvent, dyes, or redox-sensitive agents; fewer reaction conditions are required than other initiators
Compatible with a large variety of monomers
Problems Solved
Initiation temperatures that are too high for the monomers used in polymerization
Branching, cross-linking, and viscosity increases that occur during polymerization
Polymer chain defects due to the use of initiators that abstract hydrogen from growing polymer chains
Difficulty setting up favorable polymerization reaction conditions to use free radical initiators effectively
Applications
Acrylic polymer production: Initiates polymerization of acrylic monomers for coating, adhesives, and sealants
Vinyl polymer manufacturing: Facilitates the creation of polyvinyl-based plastics and resins
Specialty resins: Used to produce resins for transportation, water treatment, and construction sectors
Elastomers: Assists in synthesizing elastomeric resins for automotive and industrial applications
Textile finishes: Enables the development of durable finishes and coatings for fabrics
Paper coatings: Resins synthesized contribute to the formulation of coatings that enhance paper durability and printability
Personal care products: Involved in creating polymers for cosmetics and skin care formulations
Medical polymers: Assists in synthesizing biocompatible polymers for medical devices and drug delivery systems
Electronic materials: Used to produce polymers for electronic components and circuit boards
Water treatment polymers: Facilitates the creation of flocculants and coagulants for water purification processes
Adhesives and sealants: Initiate polymerization in formulations requiring strong bonding properties
Coatings for metal and wood: Contributes to the development of protective and decorative coatings
Oilfield chemicals: Used in synthesizing polymers that aid in oil extraction and processing
Agricultural chemicals: Assists in formulating controlled-release fertilizers and pesticides
Related Applications
Coatings
Related Chemistries
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Related Functions
Vazo™ Free Radical Initiators Articles
Vazo™: Safe & Efficient Azo Free Radical Initiators
Vazo™ is a line of azo initiators ideally suited for safely and efficiently initiating free radical polymerizations.
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