CAIE A-Level Chemistry 35.3.2 Degradation of Polymers by Light
Practise recognising light or ultraviolet exposure as a route by which some polymer chains degrade.
- Syllabus
- 2028–2030
- Course
- Chemistry 9701
- Level
- A2
Exam points
- state action of light or ultraviolet radiation as a process that degrades some polymers
- distinguish photodegradation from acid, alkali or enzyme hydrolysis when naming two breakdown routes
- avoid claiming every polymer photodegrades readily when the structure or question gives no such evidence
35.3.2—Some polymers can be degraded by the action question 1
[Maximum number: 2]
Some polymers will degrade in the environment.
Describe two processes by which this occurs.
1
2
M1 Hydrolysis using acid / base / alkali / enzymes [1]
M2 action of UV light [1]
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