Thermal degradation of polyethylene oxide blended with novolac type phenolic resin

摘要

The miscibility and thermal degradation of poly(ethylene oxide) (PEO) toughened novolac type phenolic resin were investigated. Differential scanning calorimetry (DSC) results confirmed that phenolic resin/PEO blend was blended completely. Infrared spectra show that hydrogen bonding existed in the blends. Thermal degradation of poly(ethylene oxide) blended with novolac type phenolic resin has been studied utilizing a dynamic thermogravimetric technique in a flowing nitrogen atmosphere at several heating rates (i.e. 5, 10, 20, 40°C/min). Thermal degradation of phenolic resin/PEO blends takes place in multiple steps. Chemical structure and components of blends affected thermal degradation, which coincided with the data from thermal degradation of novolac type phenolic resin/PEO blends by thermogravimetric analysis (TGA).