Synthesis and Characterizations of Poly(trimethylene terephthalate)-b-poly(tetramethylene glycol) Copolymers

Table 6

TG parameters and mechanical properties for PBT-type and PTT-type TPEE.

TPEE	𝑇5%; (°C)	𝑇max; (°C)	𝜎𝑡; (MPa)	𝐸^𝑎; (MPa)	𝜀𝑏; (%)	𝜎𝑖; (KJ·m^−2)	𝐻; (Sh D)
PBT-type	385.8	428.3	26.0	322	291	9.6	39
PTT-type	370.3	425.7	4.4	24.8	647	51.3	22

aElastic modulus.