Define polymers as macromolecules built from repeating monomer units and describe the common properties of plastics (low density, flexibility, poor conductivity, chemical resistance) in terms of their long-chain structure and intermolecular forces.
Tę umiejętność sprawdzają 3 zadania wzorowane na arkuszach IB z lat 2023–2025.
The displayed formula below shows part of the chain of an addition polymer. (i) Deduce the structural formula of the monomer used to build this polymer. (ii) Describe one chemical property responsible for this type of polymer being a useful material.
Hex-1-ene, CH2=CHCH2CH2CH2CH3, is used to manufacture poly(hex-1-ene). (i) Complete the diagram to show the repeating unit of poly(hex-1-ene). (ii) State the type of polymerization that occurs.
Outline, in terms of their structure, why polyethene carrier bags remain in landfill sites for many decades.
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