Epoxy Resins IV: The Stability of the Epoxy-Triethanolamine Borate System

Abstract
The diglycidyl ethers of bisphenol-A, phenolphthalein, and bisphenol-fluorenone were cured with triethanolamine borate to give transparent resins. Curing studies at 160° were made. Comparative properties of the respective epoxy resin systems including T g, hydrolysis resistance, thermal degradation and oxygen index flammability data are reported.