Synthesis, Characterization and Biocidal Activity of Cationic Polysaccharide (Extract from Potato) Schiff base Surfactants and their Metal Complexes | ||||
| Egyptian Journal of Chemistry | ||||
| Article 4, Volume 55, Issue 3, June 2012, Page 259-275 PDF (455.81 K) | ||||
| DOI: 10.21608/ejchem.2012.1154 | ||||
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| Abstract | ||||
| SOME cationic polysaccharide Schiff base surfactants and their …… metal complexes Ni, Cu, Fe, and Co were synthesized and their chemical structures were confirmed using FTIR, 1HNMR and UV spectroscopic analysis. The surface activities of these suractants were measured, including surface tension (), critical micelle concentration (CMC), effectiveness (cmc), efficiency (Pc20), maximum surface excess (max) and minimum surface area (Amin), interfacial tension and emulsification power at 25oC. Adsorption and micellization free energies of these amphiphiles in their solutions showed a good tendency towards adsorption at the interfaces. Also, the biocidal activity of these Schiff base surfactants and their metal complexes against bacteria (Gram positive and Gram negative) yeast, fungi and also against sulfate reducing bacteria was studied. | ||||
| Keywords | ||||
| Quaternary ammonium amphiphiles; Micellization; Adsorption; Surface properties polysaccharides; Schiff bases; Metal complexes and Biocidal activity | ||||
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