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Poly(phenylene ethylene), also known as polystyrene, is a widely-used addition polymer - Leaving Cert Chemistry - Question 1 - 2006
Question 1
Poly(phenylene ethylene), also known as polystyrene, is a widely-used addition polymer. (i) Explain the underlined term. (ii) Give any two common uses of poly(phen... show full transcript
Worked Solution & Example Answer:Poly(phenylene ethylene), also known as polystyrene, is a widely-used addition polymer - Leaving Cert Chemistry - Question 1 - 2006
Step 1
Explain the underlined term.
Answer
The term 'polymer' refers to a large molecule made up of repeating structural units, typically connected by covalent chemical bonds. These structural units are small molecules called monomers. In essence, polymers are formed when many monomers join together through a process known as polymerization, resulting in a giant molecule that exhibits unique physical and chemical properties.
Step 2
Give any two common uses of poly(phenylene ethylene).
Answer
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Packaging: Polystyrene is commonly used in packaging materials such as foam containers and protective packaging for fragile items due to its lightweight and insulating properties.
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Insulation: It is used as thermal insulation in buildings, appliances, and for outlet boxes in the electrical industry, as it helps to maintain energy efficiency.
Step 3
State any two of the procedures involved in the recycling of poly(phenylene ethylene).
Answer
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Collection: The first step in recycling poly(phenylene ethylene) involves gathering used plastics from various sources, such as households and businesses.
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Washing: After collection, the plastics are washed to remove contaminants like dirt, labels, and food residues before processing.