Zobrazeno 1 - 7
of 7
pro vyhledávání: '"A. O. Wanderley Neto"'
Autor:
W.A. de Morais, Gustavo T. M. Silva, J.L.C. Fonseca, M. R. R. Pereira, C.R.M. de Lima, A. O. Wanderley Neto, J.S. Nunes
Publikováno v:
Colloid and Polymer Science. 295:1071-1078
Interpolyelectrolyte complexes (IPECs) were obtained by the mixture of solutions of chitosan and poly(sodium 4-styrene-sulfonate). The resultant dispersions were characterized using small-angle X-ray scattering (SAXS) and dynamic light scattering (DL
Publikováno v:
Journal of Surfactants and Detergents. 20:977-983
Poly(ethylene glycol) (PEG), both as an oligomer and as a high molecular weight polymer, has been used as a surfactant active component in many applications, in its pure and unmodified structure, or as a block segment within more complex structures.
Autor:
A. O. Wanderley Neto, M. R. R. Pereira, C.R.M. de Lima, R. T. Stopilha, P. R. S. de Souza, Gustavo T. M. Silva, J.L.C. Fonseca, J.S. Nunes, W.A. de Morais
Publikováno v:
Journal of Dispersion Science and Technology. 39:83-91
Interpolyelectrolyte complex (IPEC) dispersions were prepared from chitosan and poly(sodium acrylate), NaPMA, by mixing their solutions, at different carboxyl-to-aminium molar ratios, rCA. Gyration...
Autor:
T. N. Castro Dantas, P. J. Soares A, A. O. Wanderley Neto, A. A. Dantas Neto, E. L. Barros Neto
Publikováno v:
Energy & Fuels. 28:6749-6759
Large investments in exploratory activities have stimulated new oil discoveries, generally in carbonate reservoirs. These reservoirs tend to be oil-wet, an aspect that impairs the mobilization of oil in the reservoir. However, different methods can b
Publikováno v:
Journal of Dispersion Science and Technology. 31:980-985
An anionic surfactant, synthesized with ricinoleic acid from castor oil, was obtained and its behavior in terms of microemulsion formation (via pseudo-ternary diagram analysis) and liquid-gas surface tension (both for microemulsions and pure surfacta
Autor:
Everlane Ferreira Moura, A. O. Wanderley Neto, H. Scatena, J.L.C. Fonseca, Tereza Neuma de Castro Dantas
Publikováno v:
Journal of Dispersion Science and Technology. 30:1046-1049
Two surfactants were synthesized by reacting hydrogen halides (hydrogen chloride and hydrogen bromide) with 1-dodecylamine. The resultant cationic surfactants, 1-dodecylammonium chloride (DDAC) and 1-dodecylammonium bromide (DDAB), were characterized
Autor:
A. O. Wanderley Neto, M. R. R. Pereira, J.L.C. Fonseca, Z.M. dos Santos, Tereza Neuma de Castro Dantas
Publikováno v:
European Polymer Journal. 43:3314-3324
Latexes based on acrylic acid, acrylamide, ethyl methacrylate, and ethyl acrylate were synthesized via emulsion polymerization with different monomer compositions. The resultant latices were thickened with different molar ratios of NaOH to acrylic ac