About: http://webisa.webdatacommons.org/218073105

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	wherein each R4 group is independently selected from C1 to C18 alkyl or phenyl and m is a whole or fractional number ranging from about 6 to about 70.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr