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← ScienceWhich outcome occurs when a polymeric resin cures within a confined mold?
A)Exothermic heat causes increased crosslinking✓
B)Polymer chains experience decreased entropy
C)Volatile byproducts promote chain scission
D)Resin viscosity remains constant throughout setting
💡 Explanation
Higher temperatures catalyze further crosslinking reactions because the exothermic heat accelerates the condensation polymerization. Therefore, increased crosslinking happens, increasing rigidity, rather than chain changes mediated by byproducts or constant viscosity because the curing reaction releases energy.
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