Composition analysis of sulfoethylcelluloses by high-pH anion-exchange chromatography with pulsed amperometric detection
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Publication date
1992
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Vliegenthart, J.F.G.
Kragten, E.A.
Kamerling, J.P.
Botter, H.
Batelaan, J.G.
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Abstract
A method for the determination of the distribution of the substituents in sulfoethylcellulose, synthesised from cellulose and ethylenesulfonic acid by a Michael reaction, involves hydrolysis with 1.2 M perchloric acid, and analysis of the resulting mixture of glucose and its sulfoethyl derivatives by high-pH anion-exchange chromatography with pulsed amperometric detection. The reactivity of the hydroxyl groups in cellulose towards sulfoethylation was found to decrease in the order HO-6> HO-2 ¨ HO-3.