Polyethylene monomer How will polymer chain breakdown

Question

Accepted Answer

Polymer chain breakdown occurs through processes like thermal degradation, photo-oxidation, and mechanical degradation.

Thermal degradation: Polymer chains break down due to exposure to high temperatures, leading to chain scission and formation of smaller molecules.
Photo-oxidation: Polymer chains degrade when exposed to light and oxygen, causing chain scission and formation of carbonyl groups.
Mechanical degradation: Polymer chains can break down due to mechanical stress, such as stretching or shearing, leading to chain scission and reduction in molecular weight.

Accepted Answer

When heated above 450 C (840°F), polyethylene degrades to form a mixture of hydrocarbon derivatives.

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