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← ScienceWhich mechanism causes increased chain entanglement in polymerization?
A)Van der Waals interactions dominate
B)Increased polymer chain length✓
C)Decreased solvent compatibility
D)Elevated reaction mixing rate
💡 Explanation
Increased polymer chain length results in higher molecular weight because of chain propagation polymerization. Longer chains increase physical entanglements, therefore mechanical interlocking reinforces the structure, rather than only intermolecular forces causing weak interactions.
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