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← ScienceWhich consequence results when a polymer's entanglement length decreases?
A)Tensile strength is diminished greatly✓
B)Glass transition temperature increases sharply
C)Creep resistance improves significantly
D)Crystallinity is lowered unexpectedly
💡 Explanation
Reduced entanglement decreases the average molecular weight between entanglements; because chains slip more easily past one another under stress, this leads to a lower tensile strength. Therefore, tensile strengh diminishes, rather than increasing strength via crystalline formation.
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