Define the term polyesters? How is it manufactured?

1.	Define the term polyesters? How is it manufactured?
Answer» Polyesters are the condensation products of dicarboxylic acids and diols. e.g. Dacron or Terylene. It is manufactured by heating a mixture of ethylene glycol and terephthalic acid at 420 to 460 K in the presence of zinc acetate-antimony trioxide catalyst.

Answer»

Polyesters are the condensation products of dicarboxylic acids and diols. e.g. Dacron or Terylene.

It is manufactured by heating a mixture of ethylene glycol and terephthalic acid at 420 to 460 K in the presence of zinc acetate-antimony trioxide catalyst.

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Define the term polyesters? How is it manufactured?

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