Issue 4, 2008
From the journal:

Green Chemistry

Super absorbers from renewable feedstock by catalyticoxidation

Wolfgang A. Herrmann,*a   Alexandra M. J. Rost,a   Evangeline Tosh,a   Herbert Rieplb  and  Fritz E. Kühn*ac  

* Corresponding authors

a Lehrstuhl für Anorganische Chemie, Department für Chemie der Technischen Universität München, Lichtenbergstrasse 4, Garching bei, München, Germany
E-mail: wolfgang.hermann@ch.tum.de
Fax: +49 89 289 13473

b Lehrstuhl für Rohstoff- und Energietechnologie der Technischen Universität München, Petersgasse 18, Straubing, Germany

c Molekulare Katalyse, Department für Chemie der Technischen Universität München, Lichtenbergstrasse 4, Garching bei München, Germany
E-mail: fritz.kuehn@ch.tum.de
Fax: +49 89 289 13473

Abstract

An improved, environmentally sound three-component system, MTO/H2O2/LiBr, used to prepare biodegradable oxidized starch super absorbers is reported. In contrast to previous systems (ref. 1: W. A. Herrmann, J. P. Zoller and R. W. Fischer, J. Organomet. Chem., 1999, 579, 404), a highly acidic reaction media is avoided, thus limiting product depolymerisation to a low level. This paper presents an optimized catalytic approach to make carboxy starch, which reduces overall reaction cost, and produces less harmful waste.

Graphical abstract: Super absorbers from renewable feedstock by catalytic oxidation

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Article information

DOI
https://doi.org/10.1039/B717134J
Article type
Paper
Submitted
06 Nov 2007
Accepted
22 Jan 2008
First published
20 Feb 2008

Green Chem., 2008,10, 442-446

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Super absorbers from renewable feedstock by catalytic oxidation

W. A. Herrmann, A. M. J. Rost, E. Tosh, H. Riepl and F. E. Kühn, Green Chem., 2008, 10, 442 DOI: 10.1039/B717134J

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