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Preparation of a Polyester from Ethylene Glycol and Dimethyl Terephthalate by Melt Condensation

Preparation of a Polyester from Ethylene Glycol and Dimethyl Terephthalate by Melt Condensation [Pg.277]

Safety precautions Before this experiment is carried out, Sect. 2.2.5 must be read as well as the material safety data sheets (MSDS) for all chemicals and products used. [Pg.277]

Pure ethylene glycol is dried by refluxing for 1 h in the presence of 2 wt% metallic sodium and is then distilled. Dimethyl terephthalate is recrystallized from methanol and carefully dried in vacuum (mp 141-142 °C). [Pg.277]



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A Polyesters

A-Dimethylation

A-Glycoles

A-glycol

Dimethyl preparation

Dimethyl terephthalate ethylene glycol polyester

Ethylene condensation

Ethylene glycol from

Ethylene glycol polyesters

Ethylene glycol preparation

Ethylene terephthalate

Ethylene, preparation

From glycols

From melts

Glycol) terephthalate

Glycols condensation

Glycols preparation

Melt preparation

Melting polyesters

Of 2.2-dimethyl

Polyester A condensation

Polyesters glycols

Preparation from Melts

Preparation of 1,2-Glycols

Preparation polyesters

Prepared from polyester

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