In the industrial synthesis of the polyester Terylene (Dacron), specific catalysts and thermodynamic — Polymers Chemistry Question
Question
In the industrial synthesis of the polyester Terylene (Dacron), specific catalysts and thermodynamic conditions are required to facilitate the step-growth condensation. Which of the following precisely describes these conditions?
Answer: A
💡 Solution & Explanation
Terylene (Dacron) is prepared by the step-growth condensation of ethylene glycol and terephthalic acid. This reaction requires a specific catalyst mixture of Zinc acetate and Antimony trioxide ($Sb_2O_3$) and is carried out at high temperatures of $420-460$ K.
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