Polystyrene is a plastic that can be made into many products, which can be dense, or can be in the form of a low density foam, called Styrofoam.
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Polystyrene is a synthetic aromatic polymer made from the monomer styrene. Styrofoam is a trademarked brand of expanded polystyrene foam, used for thermal insulation and craft applications. In general, polystyrene refers to the polymer, while Styrofoam specifically refers to the foam product.
The dispersed material in styrofoam is air. The air is trapped within the polymer matrix of polystyrene beads, giving styrofoam its lightweight and insulating properties.
Acetone can dissolve styrofoam because it breaks down the structure of polystyrene, the main component of styrofoam. When acetone is in contact with styrofoam, it can weaken the bonds holding the polystyrene molecules together, causing the styrofoam to melt or dissolve.
Expanded polystyrene (EPS) foam is similar to Styrofoam in terms of its lightweight and insulating properties. Other materials that are comparable include extruded polystyrene (XPS) foam and polyurethane foam.
Lead is a heavy metal that is dense and toxic when ingested or inhaled, commonly used in construction, batteries, and radiation shielding. Styrofoam, on the other hand, is a lightweight, insulating material made from polystyrene foam and is commonly used in packaging, food containers, and insulation. Lead is harmful to human health, while styrofoam is not biodegradable and poses environmental concerns.
Polystyrene is a solid at room temperature and normal atmospheric pressure. It is a synthetic polymer that is commonly used in the production of various products like foam cups, packaging materials, and insulation.