Generally, polyesters which are synthesized by the reaction between diacid and dialcohol, are some sort of yellow or dark colour.
Is it possible to stop this discolouration during polyester synthesis?
Rohit Ranganathan Gaddam
The discolouration could be avoided if you change the catalyst. Are you using titanium based catalyst?
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Sasidhar Kantheti
Hai Rohit.. Which catalyst do you suggest for polyesterification.
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Rohit Ranganathan Gaddam
Monobutyltin oxide would be a good choice over the tianium based catalyst. Are you using titanium tetrabutoxide?
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Madhukar Baburao Deshmukh
To remove yellow discoloration during polyester synthesis treat the reaction product with n-hexane or toluene to remove the impurities.
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