Epoxide homopolymerization reactivity

This reaction is in fact the homopolymerization of the epoxide. The reactivity of the secondary hydroxy group with respect to the epoxy group is intermediate between that of tertiary and primary hydroxy group 26). 

An homologous series of epoxy resins with various EEWs was synthesized by standard advancement techniques and subsequently esterified with 15 wt% 1300X13. Isothermal aging kinetics were followed at 175C. Aliquots of resin were withdrawn hourly, rapidly cooled to room temperature, and titrated for EEW. No precautions were taken to exclude air during the isothermal aging. Table Xll summarizes the formulations, reactive moiety equivalent weights, and kinetic calculations for the epoxide-alcohol addition reaction and the epoxide homopolymerization reaction. 

---