Which mechanism drives increased brittleness when epoxy resins cross-link?

💡 Explanation

Loss of chain mobility lowers impact resistance. Enhanced CROSS-LINKING restricts the ability of polymer chains to deform under stress because it inhibits molecular movement, therefore leading to brittle rather than ductile failure.

• Which consequence results when molecular chains experience high shear?
• Which propagation delay occurs when a radio wave encounters significant atmospheric ionization?
• Which effect inhibits long-range electron transfer within entangled molecules?
• Which consequence results when rapid desiccation affects concrete?
• Which thermodynamic outcome occurs when exceeding combustion chamber temperature limits in a Diesel cycle?
• Which outcome results when isotope concentration decays in scintillator?