Acetoacetoxyethyl Methacrylate
CAS Number: 21282-97-3
Acetoacetoxyethyl methacrylate (AAEM) is a beta-ketoester functional monomer that introduces acetoacetate groups into acrylic polymers. The active methylene of the acetoacetate reacts with aldehydes, amines, isocyanates, and metal ions, providing versatile crosslinking options. AAEM-functional polymers are used in ambient-cure coatings, adhesives, and metal-complex pigment dispersions.
Technical Specifications
| appearance | Colorless to pale yellow transparent liquid |
| purity (%) | ≥96.0 |
| water content (%) | ≤0.2 |
| inhibitor (MEHQ, ppm) | 200 ± 50 |
| acetoacetate content (%) | ≥94.0 |
Applications
- Ambient-cure crosslinkable waterborne acrylic coatings
- Metal ion crosslinked polymer dispersants for pigments
- Adhesion promoter reacting with amino-functional substrates
- Reactive binder for architectural low-VOC coatings
- UV-curable acrylate formulation functional modifier
Key Features
- Active methylene provides multiple crosslinking pathways without external catalyst
- Metal ion chelation with zinc or zirconium offers fast ambient crosslinking
- Polymer films display improved hardness development and block resistance
- Compatible with DAAM/ADH self-crosslinking chemistry for dual-cure systems
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CAS Number
21282-97-3
Category
Polymer Synthesis ChemicalsAvailability
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