About: http://webisa.webdatacommons.org/193908090

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	a is an integer of 2 to 20; Rf is perfluoroalkylene optionally containing one or more ether groups; and R1 is a functional group other than fluorine. 2.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com