Polystyrene

Polystyrene is a versatile, lightweight, and inexpensive synthetic thermoplastic polymer (\(C_{8}H_{8}\))n derived from styrene, commonly used in rigid, foamed, or film forms. Known for excellent thermal insulation, moldability, and transparency, it is widely utilized in food packaging, insulation (EPS/XPS), consumer electronics, and disposable items, though it is often brittle and faces low recycling rates.