Poly(ethylene terephthalate), or PET, is a polyester used to make soft-drink bottles. It is prepared by reaction of ethylene glycol with 1,4 -benzenedicarboxylic acid (terephthalic acid). Draw the structure of PET.
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Step 1: The monomers used to prepare PET are ethylene glycol (H2C2O2) and terephthalic acid (C8H6O4). Show more…
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Poly(ethylene terephthalate), or PET, is a polyester used to make soft-drink bottles. It is prepared by reaction of ethylene glyeol with 1,4 -benzenedicarboxylic acid (terephthalic acid). Draw the structure of PET.
Alkendra S.
Polyethylene terephthalate (PET) is used to make synthetic fibers, such as Dacron, thin films, such as Mylar, and bottles for carbonated beverages. PET is produced from ethylene glycol and either of two monomers, depending on whether the reaction proceeds by dehydration-condensation or by displacement. Write equations for the two syntheses. (Hint: The displacement. Wreversed by adding methanol to PET at high $T$ and $P .$ .
Polyethylene terephthalate is also prepared by the transesterification of dimethyl terephthalate with ethylene glycol. Draw the mechanism for this nucleophilic acyl substitution.
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Step-Growth Polymers-Condensation Polymers
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