Zeisel Hydriodic Acid Reduction Methods

Anderson and co-workers [65] have used combined Zeisel reaction - gas chromatography to analyse acrylic copolymers. Acrylic esters were cleaved with hydriodic acid and gas chromatography was used for analysing the alkyl iodides so formed  

Using this procedure, the recovery of alkyl iodides is greater than 95% for polymers containing between 10 and 90% of the methyl, ethyl and butyl esters of acrylic and methacrylic acid. In addition, the use of isopropylbenzene as the trapping solvent allows the determination of all Cj to C4 alkyl iodides. Quantitative cleavage by hydriodic acid 

Polymer Methyl- acrylate (%) Methyl- methacrylate (%) Ethyl- acrylate (%) Ethyl- methacrylate (%) Butyl- acrylate (%) Butyl- methacrylate (%) 

All values are the average of at least three determinations and are reported as % monomer found (% monomer in polymer) Theoretical values are in brackets Reprinted with permission from D.G. Anderson, K.E. Jackson, D.L. Smew, D.J. Tessariand J.T Vandeberg, Analytical Chemistry, 1971, 43, 7, 894. 1971, ACS [65]  

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