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← ScienceWhich consequence results when polymer chains lack crosslinking?
A)Reduced tensile strength at higher temperatures✓
B)Increased brittleness at cryogenic temperatures
C)Enhanced resistance against ultraviolet radiation
D)Elevated dielectric constant under high voltage
💡 Explanation
Reduced tensile strength occurs because chains can freely slide past each other above the glass transition temperature due to a lack of covalent crosslinking. This causes decreased resistance to deformation; therefore, it weakens, rather than retaining, structural integrity compared to crosslinked polymers.
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