Yes (and no!)The styrene molecule is a benzene ring with a -CH=CH2 group attached. In the polymerisation process, the double bonds in two adjacent groups are broken and joined to form a chain:...
Phenol, Toluene and Benzoic acid
Compounds that contain a benzene ring are known as aromatic compounds. Toluene is an example.
The class of compounds that include a benzene ring is called aromatic compounds
Aromatic compound