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2002 - Instituto de Química - USP

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Omar A. El SeoudGRUPO DE TENSOATIVOS EPOLÍMEROSNosso grupo tem <strong>de</strong>senvolvido trabalhosabrangendo as seguintes linhasSíntese <strong>de</strong> tensoativos e estudo das proprieda<strong>de</strong>s<strong>de</strong> suas soluções, emulsões e microemulsões, aquosase não-aquosas.Novas aplicações <strong>de</strong> tensoativos, inclusive napolimerização, catálise <strong>de</strong> reações químicas e<strong>de</strong>scontaminação <strong>de</strong> solo.Preparação e proprieda<strong>de</strong>s <strong>de</strong> látex e proprieda<strong>de</strong>s<strong>de</strong> seus filmes.Derivatização <strong>de</strong> polímeros naturais, celulose equitina.Summary of Research InterestsSynthesis of surfactants and study of the propertiesof their solutions; emulsions and microemulsionsin aqueous and nonaqueous solvents.Novel applications of surfactants, including theiruse as catalysts, in polymerization, and in soil <strong>de</strong>contamination.Preparation and properties of latex and its films.Funcionalization of natural polymers, cellulose andchitin.Publicações Recentes – Recent Publications:Tada, E.B.; Novaki, L. P. ; El Seoud, O. A. (2001)Solvatochromism in Cationic Micellar Solutions: Effects of the MolecularStructures of the Solvatochromic Probe and the Surfactant Head-groupLangmuir, 17: 652.El Seoud, O. A.; Correa, N. M.; Novaki, L. P. (2001)Solubilization of Pure and Aqueous 1,2,3-Propanetriol by Reverse Aggregatesof Aerosol-OT in Isooctane Probed by FTIR and 1H NMR SpectroscopyLangmuir, 17: 1847.Bazito, R. C.; El Seoud, O. A. (2001) Sugar-based Anionic Surfactants:Synthesis and Micelle Formation of Sodium Methyl 2-acylamido-2-<strong>de</strong>oxy-6-O-sulfo-D-glucopyranosi<strong>de</strong>s.Carbohydrate Res., 332, 95.El Seoud, O. A.; Ruasse, M-F.; Possidonio, S. (2001)pH-In<strong>de</strong>pen<strong>de</strong>nt Hydrolysis of 4-Nitrophenyl 2,2-Dichloropropionate inAqueous Micellar Solutions: Relative Contributions of Hydrophobic andElectrostatic InteractionsJ. Phys. Org. Chem., 14, 526.Bazito, R.C.; El Seoud, O. A. (2001);Sugar-Based Cationic Surfactants: Synthesis and Aggregation of Methyl2-Acylamido-6-trimethylammonio-2,6-di<strong>de</strong>oxy-D-glucopyranosi<strong>de</strong> Chlori<strong>de</strong>s”.J. Surf. Det., 4, 395.Ouarti, N.; Blagoeva, I. B.; El Seoud, O. A.; Ruasse, M-F. (2001)Optimization of Micellar Catalysis of Nucleophilic Substitution Reactionsin Buffered Solutions of Cetyltrimethylammonium Hali<strong>de</strong> Surfactants.Part 2: Buffers in the pH Range 7-8.J. Phys. Org. Chem., 14, 823Antonious, M. S.; Tada, E. B.; El Seoud, O. A. (<strong>2002</strong>)Thermo-solvatochromism in Aqueous Alcohols: Effects of the MolecularStructures of the Alcohol and the Solvatochromic probe.J. Phys. Org. Chem., 15, 403.El Seoud, O. A.; Ruasse, M-F.; Rodigues, W. (<strong>2002</strong>)Kinetics and Mechanism of Phosphate-catalyzed Hydrolysis ofBenzoate Esters: Comparison with Nucleophilic Catalysis by Imidazoleand o-IodosobenzoateJ. Chem. Soc., Perkin Trans. 2, 105.Bazito, R.; El Seoud, O. A. (<strong>2002</strong>)Sugar-based Surfactants: Adsorption and Micelle Formation of SodiumMethyl 2-A Cylamido-2-Deoxy-6-0-Sulfo-D-Glucopyranosi<strong>de</strong>s.Langmuir, 18, 4362.<strong>Instituto</strong> <strong>de</strong> Química - Pesquisa 2001 - <strong>2002</strong> 78 Departamento <strong>de</strong> Química Fundamental

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