Assertion: soda lignin | /r/MadeOf | large molecules
Facets:
Source sentences:
text: The alkaline lignins have been reported to be the most adequate to formulate phenol formaldehyde resins because they are structurally similar to phenol–formaldehyde resins and contain large molecules that allow quick gelation (Forss and Fuhrmann 1979; Allan et al. 1989; Peng 1994).