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. Author manuscript; available in PMC: 2025 Aug 25.
Published in final edited form as: ACS Sustain Chem Eng. 2025 Apr 22;13(17):6342–6354. doi: 10.1021/acssuschemeng.5c01330

Table 1:

Summary of thermal and mechanical properties of PET and PET co-polymers.

Polymer Mn (kDa) Đ Tg,Dsc (°C)a Tm (°C)a Xc (%)b Td,5% (°C)c Tg,DMA (°C)d E’ (GPa)e
PET 21.1 3.0 74 246 35 411 96 2.9
2-MeOPET-10 13.7 2.9 70 231 25 410 92 3.1
2,6-MeOPET-10 11.4 3.0 68 229 23 402 93 2.2
IPPET-10 14.4 2.1 70 225 27 405 90 2.7
a

Measured by DSC from the 2nd scan at a heating rate of 10 °C min−1.

b

Measured by DSC from the 2nd of heating by taking the melt enthalpy, subtracting the enthalpy of cold crystallization, and dividing by 140.1 J g−1.

c

Temperature at 5% weight loss measured by TGA at a heating rate of 20 °C min−1.

d

Peak in the tan(δ) curve obtained during from DMA at rate of 3 °C min−1.

e

Storage modulus obtained from DMA at 30 °C.