styrene vs vinyl polymer

styrene and vinyl polymer both are nouns.

Word	Noun	Adjective	Verb	Adverb
styrene	Yes	No	No	No
vinyl polymer	Yes	No	No	No

As nouns, vinyl polymer is a hypernym of styrene; that is, vinyl polymer is a word with a broader meaning than styrene:

styrene: a colorless oily liquid; the monomer for polystyrene
vinyl polymer: a thermoplastic derived by polymerization from compounds containing the vinyl group

Other hypernyms of styrene include polyvinyl resin, vinyl resin.

styrene (noun)	vinyl polymer (noun)
a colorless oily liquid; the monomer for polystyrene	a thermoplastic derived by polymerization from compounds containing the vinyl group