Diallyl Bisphenol A

• 4,4'-(Propane-2,2-diyl)bis(2-allylphenol)
• Isopropylidenebis(2-allylphenol)
• 2,2-Bis(3-allyl-4-hydroxyphenyl)propane
• 2,2'-Diallylbisphenol A

Diallyl Bisphenol A (DABA) is a modified monomer used to enhance the properties of thermosetting resins like bismaleimide, epoxy, and phenolic resins. It improves toughness, heat resistance, and can act as an active diluent, reducing the curing temperature of resins. It also improves adhesion in rubber applications. Here's a more detailed breakdown:

• Modified Monomer:DABA is a derivative of Bisphenol A (BPA) where the hydrogen atoms on the aromatic ring are replaced with allyl groups. 
• Resin Modification:It's primarily used to modify thermosetting resins, including:
  • Bismaleimide (BMI) resins: DABA enhances toughness, reduces cost, and improves heat resistance and moldability. 
  • Epoxy resins: DABA can improve toughness, thermal stability, flexibility, bonding properties, mechanical properties, solvent resistance, and workability. 
  • Phenolic resins: DABA can be used to modify and toughen these resins as well