Discussion
Neoprene resists oils and weathering better than natural rubber because it is a polymer of
Answer: D
Correct answer: chloroprene
Neoprene is polychloroprene, and the chlorine atom on the chain is responsible for its virtues: it reduces the reactivity of the remaining double bonds towards oxygen and ozone, giving good weathering resistance, and it raises the polarity of the chain, giving resistance to hydrocarbon oils. It is also flame retarding, which natural rubber is not.
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