Assertion: kraft lignin | /r/HasProperty | subjected to different temperatures
Facets:
value: for 30 minutes
type: TEMPORAL
Source sentences:
text: The original underivatized kraft lignin was thus subjected to different temperatures (120 °C, 130 °C, and 140 °C) under a nitrogen atmosphere within the furnace of the TGA-Q500 instrument for 30 minutes, followed by GPC analyses after cooling the treated samples to room temperature (Fig. 1B).