PET using EG-BHPP(Sb 2 O 3 ) catalysts shows the highest I.V. within a reaction time of 120 min. In the p-d analysis, PET using EG-BHPP(Sb 2 O 3 ) catalysts has the fastest propagation rate and slowest degradation rate. EG-BHPP(Sb 2 O 3 ) catalysts are more efficient than...