Enzyme-catalyzed synthesis of 4-methylcatechol oligomer and preliminary evaluations as stabilizing agent in polypropylene

Abstract In the present work, 4-methylcatechol oligomer has been prepared by using enzyme-catalyzed polymerization in water and preliminary evaluations as stabilizing agent polypropylene (PP) was performed. comparison with intrinsic PP, oxidation onset temperature of oligomer/PP composite increased 66°C, induction time 40 min. addition, mixing a PP (i.e., formation composite) did significantly enhance long-term stability thermal oxidative environment. Moreover, tensile strength this not decrease after aging for 800 h an air atmosphere at 120°C. These results show that addition will markedly delay degradation materials, even under extreme conditions. Thus, phenol compounds may provide new avenue toward preparation novel antioxidants.