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← ScienceWhich outcome accelerates epoxy thermosetting when increasing temperature?
A)Increased polymer chain mobility✓
B)Reduced crosslink reaction enthalpy
C)Increased average polymer crystallinity
D)Overall change in phase equilibrium
💡 Explanation
Accelerated curing arises as *Arrhenius kinetics* dictate a temperature-dependent reaction rate because, polymer chains gain vibrational energy with more free rotation; therefore, monomers explore conformational space more quickly, resulting in more crosslinks rather than delayed solidification thresholds.
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