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SEM micrographs of (a) tensile fractured surface of Neat PLA, (b) fractured surface of extruded BL at 120 °C, and tensile fractured surface of (c) PLA_BL20, (d) PLA_BL20-g-2GMA, (e) PLA_BL20-g-5GMA, (f) PLA_BL20-g-10GMA, (g) PLA_BL40, (h) PLA_BL40-g-2GMA, (i) PLA_BL40-g-5GMA, and (j) PLA_BL40-g-10GMA.
