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← ScienceWhich consequence results when epoxy polymerization halts prematurely?
A)Reduced cross-linking lowers glass temperatures✓
B)Increased hydrogen bonding causes brittleness
C)Covalent bond saturation enhances strength
D)Ionic bridges improve corrosion resistance
💡 Explanation
Reduced cross-linking caused by incomplete polymerization negatively impacts the epoxy's strength because polymer chains fail to fully bond via covalent bond formation, resulting in lowered softening temperatures. Therefore, the glass transition is reduced rather than enhanced bond saturation, which would strengthen materials, or increased ionic interactions, which isn't the primary mechanism.
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