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Issue 2, 2015
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Preparation of bio-based surfactants from glycerol and dodecanol by direct etherification

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Abstract

In this paper, we studied an original synthetic strategy to prepare bio-based surfactants by direct solvent-free etherification of glycerol with dodecanol using heterogeneous interfacial acidic catalysts dubbed Pickering Interfacial Catalysis. The conversion of dodecanol could be achieved to 60–71% with limited production of didodecyl ether (DE) as the main side product. The selectivity of the final product, alkylpolyglycerylether (AGEM), could be pushed to >80% with a water removal process at 150 °C, as a mixture of monolauryl polyglyceryl ethers, multilauryl polyglyceryl ethers and multilauryl cyclicpolyglyceryl ethers. AGEM could be isolated with a suitable work-up and was fully characterized by GC (MS), HPLC, SFC/HRMS, etc. The physicochemical properties of these new surfactants were evaluated, as well as their laundry performances. This solvent-free direct etherification process paves the way towards new value-added applications of glycerol.

Graphical abstract: Preparation of bio-based surfactants from glycerol and dodecanol by direct etherification

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Publication details

The article was received on 05 May 2014, accepted on 10 Sep 2014 and first published on 12 Sep 2014


Article type: Paper
DOI: 10.1039/C4GC00818A
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Green Chem., 2015,17, 882-892

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    Preparation of bio-based surfactants from glycerol and dodecanol by direct etherification

    Z. Fan, Y. Zhao, F. Preda, J. Clacens, H. Shi, L. Wang, X. Feng and F. De Campo, Green Chem., 2015, 17, 882
    DOI: 10.1039/C4GC00818A

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