Nur, H., Snowden, M. J. ORCID: https://orcid.org/0000-0002-1087-2692, Cornelius, V. J., Mitchell, J. C. ORCID: https://orcid.org/0000-0003-2945-3292, Harvey, P. J. ORCID: https://orcid.org/0000-0001-7193-4570 and Benee, L. S. (2008) Colloidal microgel in removal of water from biodiesel. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 335 (1-3). pp. 133-137. ISSN 0927-7757 (doi:10.1016/j.colsurfa.2008.10.049)

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Abstract

A series of poly(N-isopropylacrylamide) [pNIPAM]-based homo-polymer and co-polymer microgel particles were prepared by surfactant-free emulsion polymerisation. The co-monomers were acrylic acid. 4-vinylpyridine. butyl acrylate, 4-vinylbiphenyl and vinyl laurate. Co-monomers were added at a concentration of 10% (w/w) relative to the base monomer pNIPAM for the preparation of each co-polymer microgel. The co-monomers chosen vary by their organic chain length, polarity and pH sensitivity, as these should influence how the particles behave in aqueous and non-aqueous solvents. The effect of adding different types of co-monomer into the microgel structure was investigated with respect to their dispersibility in different solvents. These microgel particles have shown useful application in the removal of water from biodiesel prepared from rape seed. Karl Fischer experiments showed that microgel particles can be used to reduce the water content in biodiesel to an acceptable level for incorporation into internal combustion engines. (C) 2008 Elsevier B.V. All rights reserved.

Item Type:	Article
Additional Information:	[1] First available online: 14 November 2008. [2] First published in print: 5 March 2009. [3] Published in Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2009, Volume 335, Issues 1–3, pp. 133–137.
Uncontrolled Keywords:	colloidal microgels, biodiesel, Karl Fischer, dispersibility, water absorbent, n-isopropylacrylamide, temperature, transesterification, copolymer, hydrogels, colloids
Subjects:	Q Science > QD Chemistry
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science > School of Science (SCI) Faculty of Education, Health & Human Sciences > School of Human Sciences (HUM)
Related URLs:	Publisher Organisation
Last Modified:	09 Oct 2021 04:46
URI:	http://gala.gre.ac.uk/id/eprint/1592

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