| The polymer polystyrene contains the phenyl group as part of its repeat unit. |
| Expanded polystyrene mixed with Portland cement, sand, and chemical additives are the most common group of ingredients. |
| The main types of litter were polystyrene foam board and large fertiliser type bags. |
| In this process, water passes through a media bed, usually sulfonated polystyrene beads. |
| This is a more environmentally-friendly approach than the expanded polystyrene foam more commonly used. |
| A lightweight foam polymer, usually polystyrene or polyurethane, forms the core of the surfboard. |
