Outline the use of alkenes in the manufacture of margarine by catalytic hydrogenation of unsaturated vegetable oils. Outline the use of alkenes in the.

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Presentation transcript:

Outline the use of alkenes in the manufacture of margarine by catalytic hydrogenation of unsaturated vegetable oils. Outline the use of alkenes in the formation of a range of polymers using unsaturated monomer units. Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Alkene molecules form addition polymers Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Describe the addition polymerisation of alkenes. Deduce the repeat unit of an addition polymer obtained from a given monomer. Identify the monomer that would produce a given section of an addition polymer. Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

General equation for addition polymerisation Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Formation of poly(ethene)‏ Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Formation of poly(propene)‏ Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Formation of poly(chloroethene) PVC Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Formation of poly(phenylethene) (polystyrene)‏ Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Poly(tetrafluoroethene) (Teflon or PTFE)‏ Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Orlon Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Describe some of the uses for certain polymers. Outline how waste polymers are recycled, separated and processed. Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Explain how polymers undergo combustion for energy production. Explain how polymers are used as a feedstock in cracking for producing plastics and other chemicals. Outline the role of chemists in minimising environmental damage by removal of toxic waste and development of biodegradable and compostable polymers. Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original

Lactic acid is now used to make compostable polymers Week 16 © Pearson Education Ltd 2008 This document may have been altered from the original