Compositions and Antioxidation Property of Dicyclopentadiene-phenol Adduct for Isotactic Polypropylene

摘要

Five dicyclopentadiene-phenol antioxidants had been synthesized from p-cresol and dicyclopentadiene (DCPD), and the compositions of them are determined successfully by high performance liquid chromatography (HPLC). Thermogravimetric analysis(TGA)、melt flow index (MFI) and oxidation onset temperature (OOT) method had been explored to investigate the stability of them and antioxidation property for isotactic polypropylene(iPP) added with them. The results indicate that the higher of the degree of polymerization, the weaker of the thermal stability of this series antioxidants and the stability of them for iPP decreases with increasing of degree of polymerization at the same amount of antioxidants.