Functional Monomers

Acetylacetoxyethyl Methacrylate (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.

Attributes

Key Features and Benefits

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.

Specifications

Technical Highlights

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.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

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.