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← ScienceWhich outcome limits epoxy resin curing at lower temperatures?
A)Reduced molecular collision frequency✓
B)Increased radical polymerization rate
C)Hydroxyl group saturation increasing
D)Chain termination event dominance
💡 Explanation
Reduced temperature lowers molecule kinetic energy, therefore reduces the frequency of effective collisions needed for the nucleophilic substitution reaction. This limits crosslinking, because reactant energy is too low for activation energy, rather than faster secondary chain growth.
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