Question

how is terylene prepared?​

Answer 1

Explanation :

Dacron (Terylene) is obtained by the condensation polymerization of ethylene glycol (1,2-Ethanediol) and dimethylterephthalate. b. Monomers are heated at 503 K.

The catalyst used is a mixture of zinc acetate and antimony trioxide .

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Answer 2

Preparation of Terylene:

• In the laboratory Terylene is prepared by polycondensation reaction in which terephthalic acid is heated up with ethylene glycol at 425 – 475 K.  

• A mixture of zinc acetate and antimony trioxide is used as catalyst.

• Polycondensation is a chemical condensation reaction which results in the formation of a compound with high molecular weight.  

• Successive bonds between the monomers results in the formation of polymer.

• Terylene is also known as Dacron.  

• It is a polyester and it doesn’t absorb water.

• It is the strongest polymer.

• It is used to make clothing and water bottles.

• It is mixed with natural fibres like cotton and wool for making various clothes.

Learn more about Polycondensation

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