About: http://webisa.webdatacommons.org/339970784

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	Moreover, some polymers such as polyvinylidene fluoride (PVDF) and polyimide are also piezoelectric materials.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov