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← ScienceWhich mechanism primarily limits cohesive strength in polymers?
A)Van der Waals interactions✓
B)Entanglement chain mobility
C)Covalent backbone cleavage
D)Ionic crosslinking destabilization
💡 Explanation
Cohesive strength is limited by weak Van der Waals interactions between polymer chains because these individually weak intermolecular forces must be overcome to separate chains—therefore, the polymer fails through chain slippage along these bonds, rather than backbone breakage.
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