Poly(phenylethene), commonly known as polystyrene, is an addition polymer manufactured from phenylethene, C8H8\text{C}_8\text{H}_8C8H8.
Complete the equation to show the formation of poly(phenylethene) from phenylethene.
State why poly(phenylethene) is described as an addition polymer, rather than a condensation polymer.
Many disposable beverage cups and protective packaging blocks are made of poly(phenylethene).
One useful property of poly(phenylethene) is that it is a very good thermal insulator. Explain two other properties of poly(phenylethene) that make it suitable for manufacturing beverage cups or protective packaging.
Another property of poly(phenylethene) is that it is non-biodegradable. Two methods of disposing of poly(phenylethene) are landfill and burning (incineration). Give one problem caused by each method of disposal.
