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Chemistry · Unit 4 · Chemical synthesis and design · Chemical synthesis

Describe, using equations, how - addition polymers, including polyethene (LDPE and HDPE), polypropene and polytetrafluorethene, can be produced from their monomers - condensation polymers, including polysaccharides (carbohydrates), polylactic acid (PLA), polyamide (proteins and nylon) and polyester, can be produced from their monomers.

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Question 1

A student is given a sample of polylactic acid (PLA) to analyse. (a) Identify the type of polymerization reaction used to form PLA. (b) Describe what small molecule is released during the formation of PLA from lactic acid monomers.

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Question 2

Which of the following correctly describes the difference between addition and condensation polymerisation?

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Question 3

Which statement correctly describes the type of polymerisation that occurs when lactic acid monomers form polylactic acid (PLA)?

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