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Classification of Alcohols

Is polyester ...

Question

Is polyester made by ester units which can be synthesized from petroleum products.Explain?

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Solution

Polyesters have ester units and the other name is Polyethylene terephthalate : PET
Terylene or Dacron
It is thermosetting plastics. Prepared from ethylene glycol and dimethyl terephthalic acid at 253 – 513 K.
All synthetic fibres are prepared from raw materials of petroleum origin or petrochemicals.

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