Selective O-allylation of bisphenol A: toward a chloride-free route for epoxy resins

Synthesis of bisphenol a novolac epoxy r

Synthesis of bisphenol a novolac epoxy resins for coating applications

✍ Ayman M. Atta; Nevin O. Shaker; Notaila E. Nasser 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB 👁 1 views

## Abstract Bisphenol A novolacs were synthesized in both melting and solution processes using __p__‐formaldehyde and formalin solution in presence of oxalic acid catalyst, respectively. Hydrogen nuclear magnetic resonance, ^1^H NMR, investigations show a high methylene bridge contents in the novol