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AAEMA (Acetoacetoxyethyl Methacrylate)
AAEMA (acetoacetoxyethyl methacrylate) is an acrylic monomer used as a copolymer in coatings and adhesive applications.
AAEMA from Arxada (formerly Lonza) is 2-(Acetoacetoxy)ethyl methacrylate, CAS number 21282-97-3. Acetoacetoxyethyl methacrylate is also referred to as AAEM. AAEMA is an acetoacetate acrylic monomer used to make acrylic resins for a wide variety of coatings and adhesive applications. Acetoacetates have excellent cross-linking versatility and lower the resin glass transition temperature, decrease solution viscosity for higher-solids coatings, and improve adhesion for metal coatings. AAEMA has excellent hydrolytic stability and weatherability, low viscosity, and low water absorption. AAEMA promotes adhesion to metal, mineral, and wood surfaces. AAEMA can also replace styrene in the production of unsaturated polyesters.
Specifications
Appearance: Clear liquid Color: Colorless to yellowish Assay (GC): >95.0% area 2-Hydroxyethyl methacrylate (GC): <2.5% area Water (KF): <0.10%w/w (KF) Transparence (440 nm, 10 mm): >85.0% Transparence (440 nm, 50 mm): >70.0% Acid value (titr.): 3.0–8.0 mg KOH/g Color (Gardner): <1.0
Primary Chemistry: 2-(Acetoacetoxy)ethyl methacrylate
Features & Benefits
Solubility in water and organic solvents Hydrolytic stability Good weatherability Promotes adhesion in metal coatings Lowers polymer Tg Decreases viscosity for high-solids, low-VOC coatings Reactive methylene group and ketone carbonyl groups can be reacted via cross-linking or for polymer modification Low color
Problems Solved
Yellowing polyester resin Increased polyester resin viscosity High resin Tg Poor hydrolytic stability from acrylic resin Poor weatherability from acrylic resin Poor resin adhesion for metal coatings applications
Applications
Polymers Adhesives Industrial coatings Architectural coatings Gel coats Colorants
Arxada Diketene Derivatives offer several advantages to the composites industry as copromoters in the production of unsaturated polyesters resins for gel coats.
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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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