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← ScienceWhich outcome results when a strong oxidizing agent degrades cross-linked polymers?
A)Chain scission and plastic embrittlement✓
B)Increased polymer chain entanglement stability
C)Enhanced material thermal decomposition threshold
D)Crystallization and increased tensile modulus
💡 Explanation
Chain scission occurs because oxidative degradation breaks covalent bonds in polymer chains, weakening cross-links. This process accelerates embrittlement and cracking, therefore the polymer fractures, rather than increased strength or stability under these conditions.
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