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. 2020 Aug 13;5(33):20890–20902. doi: 10.1021/acsomega.0c02330

Table 2. Glass Transition Temperatures (Tg), Crystal Fraction (XC), Mobile Amorphous Weight Fraction (XMAF), Rigid Amorphous Weight Fraction (XRAF), Experimental Elastic Modulus (E), Tensile Strength at Break (TS), and Elongation at Break Measured at Troom for PLLA after Crystallization at Tmold = 95 and 110 °C for Different Molding Times.

condition Tg (°C)a XCb XMAFb XRAFc E (GPa) TS (MPa) elongation at break (%)
amorphous 57.0 0.00 1.00 0.00 3.60 ± 0.19 60.3 ± 2.2 3.60 ± 0.50
Tmold = 95 °C, tmold = 15 min 59.0 0.29 0.48 0.23 3.86 ± 0.18 58.6 ± 1.2 1.68 ± 0.10
Tmold = 95 °C, tmold = 30 min 63.5 0.38 0.39 0.23 3.83 ± 0.14 57.8 ± 1.1 1.68 ± 0.10
Tmold = 95 °C, tmold = 40 min 64.5 0.39 0.38 0.23 3.82 ± 0.20 57.9 ± 2.7 1.67 ± 0.10
Tmold = 95 °C, tmold = 50 min 65.0 0.40 0.36 0.24 3.92 ± 0.17 54.6 ± 1.7 1.60 ± 0.10
Tmold = 110 °C, tmold = 5 min 58.0 0.18 0.75 0.07 3.95 ± 0.22 50.8 ± 3.0 1.37 ± 0.10
Tmold = 110 °C, tmold = 10 min 60.0 0.38 0.47 0.15 4.08 ± 0.22 50.8 ± 3.2 1.36 ± 0.17
Tmold = 110 °C, tmold = 15 min 61.0 0.40 0.42 0.18 4.19 ± 0.19 50.6 ± 2.5 1.31 ± 0.15
Tmold = 110 °C, tmold = 20 min 62.0 0.42 0.38 0.20 4.42 ± 0.10 49.7 ± 3.0 1.24 ± 0.24
a

Estimated error from repeated measurements: ±0.5 K.

b

Estimated error from repeated measurements: ±0.02.

c

Estimated errors from repeated measurements: ±0.04.