About: http://webisa.webdatacommons.org/165330108

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 few studies have also noted that some polymers, in particular poly(methyl methacrylate) (PMMA), display the unusual characteristic of maintaining their molecular ion signals after extended bombardment with polyatomic ion beams.
http://www.w3.org/ns/prov#wasQuotedFrom	nist.gov