Assertion: lactic acid | /r/ObjectUse | used poly(lactic acid
Facets:
value: more recently
type: TEMPORAL
value: as a monomer in the preparation
type: MANNER
Source sentences:
text: More recently lactic acid has been used as a monomer in the preparation of, for example, poly(lactic acid) and copolymers such as those with glycollic and methylglycollic acid, polymers which are of increasing interest because of their biodegradability.