About: http://webisa.webdatacommons.org/200181892

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They include a wide variety of polysiloxane copolymers containing various compositions of functional groups, hence, R??? and R??? actually may represent many different types of groups within the same polymer molecule.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com