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← ScienceWhich outcome accelerates nylon polymer degradation near sustained stress cracking?
A)Hydrolysis cleaves the amide bonds✓
B)Oxidation forms peroxy radicals
C)Crystallinity increase crack propagation
D)Entanglement density resists chain scission
💡 Explanation
Hydrolysis increases nylon degradation because water molecules attack and cleave the amide bonds via nucleophilic acyl substitution. Therefore hydrolysis dominates rather than oxidation, because stress exposure exposes more susceptible amide locations.
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