Chemistry - Polymer Question with Solution | TestHub

Ethylene glycol on reaction with terephthalic acid forms the polymer terylene(also known as Dacron or terene) which is used as synthetic fibre.

$\begin{array}{ccccccccc}{\text{nHOCH}}_2·{\text{CH}}_2\text{OH}& +& \text{nHOOC}·{\text{C}}_6{\text{H}}_4·\text{COOH}& \stackrel{-{\text{nH}}_2\text{O}}{\to }& & & & & {\left[-{\text{OCH}}_2-{\text{CH}}_2-\text{O}-\stackrel{\underset{||}{\text{O}}}{\text{C}}-{\text{C}}_6{\text{H}}_4-\stackrel{\underset{||}{\text{O}}}{\text{C}}-\right]}_{\text{n}}\\ \text{Ethylene glycol}& & \text{Terephthalic acid}& & & & & & \left(\text{Polymer}\right)\text{Terylene}\end{array}$