Welcome to the Quiz!
This quiz contains 7 questions from a mix of 1 subtopics.
Which of the following polymers are non-biodegradable?
polyamides
polyalkenes
polyesters
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What makes polyalkenes resistant to breakdown?
they are similar to alkenes
their polymer chains are composed of non-polar, saturated hydrocarbons
they are chemically reactive
their polymer chains are composed of polar, unsaturated hydrocarbons
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In polyamides, which functional group can be hydrolysed?
ester group
amide group
carbonyl group
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What is the limitation of photodegradable polymers in landfill environments?
they do not absorb energy from UV light
they do not contain light-sensitive carbonyl groups
they do not fragment into smaller pieces
waste is typically buried, blocking light and preventing the photodegradation process
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In polyesters, the links (-COO-) are broken down through acid hydrolysis into alcohols and carboxylic acids.
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What is the term for the process by which polyamides and polyesters can break down?
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polymers contain light-sensitive carbonyl groups (C=O) that absorb energy from UV light, leading to the weakening and breaking of nearby bonds.
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