Assertion: natural polymer | /r/HasProperty | rubber
Facets:
Source sentences:
text: However, natural polymers also exist; rubber and wood, for example, are natural polymers that consist of a simple hydrocarbon, isoprene, according to Encyclopedia Britannica.
text: The organic polymers comprise the classes of natural polymers (rubber, cellulose), synthetic organic polymers (textile fibers, plastics, films, elastomers, etc.) and natural biopolymers (biology, medicine, pharmacy).