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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	copyright The Open UniversityNo related items provided in this feed 1.2.2 Thermoplastics and thermosets As already stated, polymers including rigid plastics were first developed in the last century from natural precursors.
http://www.w3.org/ns/prov#wasQuotedFrom	nottingham.ac.uk