Функциональные мономеры

Ацетоацетоксиэтилметакрилат (AAEM)

Acetylacetoxyethyl Methacrylate (AAEM) is a specialized methacrylic monomer characterized by its unique acetoacetoxy functional group, which allows for versatile post-polymerization modifications and crosslinking. As a clear, low-viscosity liquid, AAEM is primarily employed in the synthesis of high-performance acrylic resins for coatings, adhesives, and sealants. Its chemical structure facilitates room-temperature crosslinking reactions with primary amines and provides a mechanism for metal chelation, significantly enhancing the durability and adhesion of the final polymer matrix. In the global chemical market, AAEM is recognized as a vital building block for low-VOC (Volatile Organic Compound) formulations, enabling the development of waterborne and high-solids systems that meet stringent environmental regulations. By incorporating AAEM, manufacturers can achieve superior solvent resistance and mechanical strength without the need for high-temperature curing, making it an essential component for innovative architectural and industrial coating technologies.

Характеристики

Ключевые свойства и преимущества

AAEM offers several distinct advantages for polymer design:
Room Temperature Curing: Enables efficient crosslinking with diamines or through keto-enol tautomerism.
Enhanced Adhesion: The acetoacetoxy group promotes superior bonding to various substrates, including metal and plastic.
Reduced Viscosity: Acts as an effective reactive diluent, lowering the VOC content of formulations.
High Purity: Our technical grade ensures consistent polymerization and reproducible results.
Improved Durability: Increases resistance to water, solvents, and mechanical abrasion.
Versatility: Easily copolymerizes with common methacrylates and acrylates to customize resin properties.

Спецификации

Технические особенности

Appearance: Clear, colorless to pale yellow liquid.
Molecular Formula: C10H14O5.
Molecular Weight: 214.22 g/mol.
Specific Gravity: Approximately 1.12 at 25 degrees Celsius.
Boiling Point: 285 degrees Celsius (decomposes).
Solubility: Soluble in most organic solvents; partially soluble in water.
Refractive Index: 1.4510.
Flash Point: 134 degrees Celsius.
Purity: Minimum 95 percent.
Inhibitor: Typically stabilized with 50-150 ppm MEHQ to prevent premature polymerization.
Storage: Store in a cool, dark place away from direct sunlight and heat sources to maintain stability.
Handling: Requires standard chemical PPE, including gloves and eye protection, due to its irritant nature.

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Практическое применение в отраслях

Области применения

AAEM is widely utilized across diverse industrial sectors:
Automotive Coatings: Used in basecoats and clearcoats for improved hardness and chemical resistance.
Industrial Finishes: Ideal for high-solids metal decorative coatings.
Architectural Paints: Enhances the performance of waterborne resins for exterior and interior use.
Adhesives: Found in pressure-sensitive and structural adhesives to improve shear strength.
Wood Coatings: Provides excellent stain and water resistance for furniture and flooring finishes.
Textile Chemicals: Used in reactive binders and pigment printing pastes.
Laboratory Research: Serves as a functional monomer for specialized copolymer synthesis.