Which mechanism dominates deformation when amorphous polymers approach glass transition?

💡 Explanation

As temperature raises, polymer chains gain kinetic energy; chain mobility increases substantially via reptation; because polymer backbones slide past each other more easily as thermal energy rises. Molecular reptation dominates, therefore, rather than chain scission or crystallization; these require significantly greater energy/organization.

• Which limitation do transmission line impairments impose when characteristic impedance becomes inconsistent?
• Which outcome occurs when an epoxy resin is inadequately mixed with its hardener during composite manufacturing?
• Which outcome occurs when high humidity weakens road-salt effectiveness?
• Which consequence occurs during accelerator mass spectrometry of carbon isotopes?
• Which condition indicates turbulent flow from a nozzle?
• Which mechanism undermines magnetic confinement in fusion reactors?