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← ScienceWhich consequence results when epoxy polymerisation exceeds threshold?
A)Reduced tensile strength occurs✓
B)Improved chemical resistance results
C)Glass transition shifts lower
D)Young's modulus becomes halved
💡 Explanation
Weak intermolecular covalent forces lead to reduced tensile strength; therefore, incomplete polymerisation results in a brittle product because the crosslinking density via van der Waals forces is insufficient, rather than enhanced resistance or higher modulus if fully cured.
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