Amit Barot, So you're going to get polyester based on, I guess, some castor-derived substance. What? So it will be, I guess again, modifying some hydrocolloid or mixture of hydrocolloids with dicarboxylic acid? And another question, is it supposed to be a food additive - a thickener - as indicated by a relatively high viscosity - of what? solution? What concentration? Or maybe a finished product - a butter substitute? And the acid? - well, it is rather a trial and error method.

Dear Miroslaw

I am going to synthesize a polyol from castor oil which should have ghee or buttery like smell, and from it targeted to have polyurethane application having flexibility in it.

Dr. Barot,

You can try Tall oil based dimer acids.

Also try incorporating plasticizers for enhanced results.