DMAA 95 in water is a copolymer used in unsaturated polyester resin formulations.
DMAA 95 is a concentrated 95% solution of N,N-Dimethylacetoacetamide (CAS number 2044-64-6) in water. DMAA 95 is used as a copromoter in unsaturated polyester resin formulations to help resins cure quickly and completely. DMAA 95 has low color and can cross-link with other polymers, It also lowers the solution viscosity for high-solids coatings, and the glass transition temperature.
Appearance: Liquid
Color: Colorless to orange, 0–800 (APHA)
Assay (calculated): ≥ 95.0% (calculated)
Dimethylamine (area, GC): ≤0.1% (area) (GC)
Water (KF): ≤4.0% (w/w)
Sum of impurities (calculated): 0.0–1.0%
pH of the solution: ≥7.0
Primary Chemistry: N,N-dimethylacetoacetamide
Low color
Fast cure time
Lowers solution viscosity
Lowers Tg
Resin discoloration
Slow or incomplete resin cure
High Tg
High resin viscosity
Agrochemicals
Polymers
Coatings
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