About: http://webisa.webdatacommons.org/180994923

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	The chamber itself is purged with an oxygen-free gas, such as nitrogen, and an atmosphere of such oxygen-free gas is maintained in the chamber throughout the polymerization.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com