| Diacetone Acrylamide (DAAM) is an acrylic type monomer, used as a crosslinking monomer to make functional copolymers. DAAM readily free-radically copolymerizes and can post-react with adipic acid dihydrazide (ADH) to form self-crosslinkable systems. Copolymerization is effective with vinyl acetate monomer, MMA, acrylic esters, acrylamide, styrene, and others—whether in solution, bulk, or emulsion systems. Advantages of the DAAM-ADH crosslinking system include: - Easy and safe to use
- Formaldehyde free
- uniformly copolymerizes within acrylic copolymers, creating well-dispersed pendant ketone crosslinking sites
- Wet acrylic emulsions based on diacetone acrylamide with ADH in the aqueous phase, are initially non-reactive and afford emulsions with good long-term stability
- After film coalescence, crosslinking becomes rapid at ambient temperatures, thanks to water evaporation in the drying process and a simultaneous reduction in pH arising from the loss of ammonia
- Because crosslinking is post-coalescence, the resulting three-dimensional polymer network exhibits enhanced mechanical strength and durability as well as maximum film cohesive properties.
- Crosslinking with the keto-hydrazide chemistry enhances abrasion, scrub, stain, and blocking resistance; moisture and solvent resistance; and substrate adhesion.
End uses include:- Coatings and paints
- Textile and paper treatments
- Adhesives and sealants
- Printing inks
- Polishes and waxes
Information provided by Gantrade Corporation. |
