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← ScienceWhich consequence results when intermolecular forces weaken in epoxy?
A)Reduced polymer chain entanglement occurs✓
B)Increased glass transition temperature results
C)Elastic modulus exhibits substantial rigidity
D)Covalent crosslink density significantly swells
💡 Explanation
Weakening intermolecular forces diminish chain interactions; intermolecular forces maintain entanglement. The polymer chains have more freedom because less energy is needed to slide past other chains due to reduced attractions, therefore chain entanglement is reduced, rather than modulus increasing, which requires stronger bonds.
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