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Author Topic: Chemical Science: Polymer  (Read 494 times)

vinaysharma

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Chemical Science: Polymer
« on: March 02, 2010, 02:09:25 PM »
Can anyone tell me how to remove the excess of p-toluene sulfonic acid (PTSA) from fatty acid methyl ester (FAME) after alcoholysis ?
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Vinay Sharma

Bhupender Singh

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Re: Chemical Science: Polymer
« Reply #1 on: March 02, 2010, 06:45:32 PM »
PTSA is highly soluble in water. Possibly it can be removed easily by extraction from dicholoromethane/chloroform and water system depending on the solubility of fatty acid derivative.
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Bhupender Singh, Ph.D.
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Deptt of Biomedical and Pharmaceutical Sciences,
University of Rhode Island, Kingston, RI, USA 02881
http://www.indianscience.in/bschhikara

vinaysharma

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Re: Chemical Science: Polymer
« Reply #2 on: March 03, 2010, 11:40:01 AM »
Thank a lot for the reply.
I have used water system but have to do  FTIR of the product to know whether it is removed or not then I can try DCM  or chloroform.
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Vinay Sharma
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