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What is the monomer of poleyster?

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Anonymous

9y ago
Updated: 8/21/2019

Polyesters are co-polymers, meaning they have more than one monomer. Instead of a chain made of repeated identical units, A-A-A-A-A-A-A-....., they have alternating units, A-B-A-B-A-B-A-B-.....In theory you start with a dicarboxylic acid such as terephthalic acid with a diol such as ethylene glycol, which react by a series of condenstation reactions to form the polymer. In practice they often start with acid derivatives such as dimethyl terephthalate, which then reacts by a transesterification reaction with the glycol. The precise monomers depend on which polyester you are making, but terephthalic acid and ethylene glycol make the commonest one, poly(terephthalic ester) or PET.

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Wiki User

9y ago

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