Table 1. Thermal Property and Intrinsic Viscosity (I.V.) of PBABI Copolyesters with EDTA at BA/BI Contents of 10/0 and 9/1.

item	Tc (°C)	ΔHc (mJ mg–1)	Tm (°C)	ΔHm (mJ mg–1)	I.V. (dL g–1)
BA/BI = 10/0	29.5	–53.1	50.2	49.2	0.75
BA/BI = 10/0—EDTA	29.5	–46.1	50.8	43.1	0.98
BA/BI = 9/1	19.2	–51.9	42.9	46.4	0.94
BA/BI = 9/1—EDTA	22.7	–47.9	42.4	45.9	1.02