About: http://webisa.webdatacommons.org/9153652

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	pyridine or other liquid, benzenesoluble tertiary amine, to the slurry of benzene and acid anhydride form polymer and then heat the mixture to about 70 C. for about 2 to 24 hours.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com