Artículos de revistas
A Morphological View Of The Sodium 4,4′-distyrylbiphenyl Sulfonate Fluorescent Brightness Distribution On Regenerated Cellulose Fibers
Registro en:
Journal Of Applied Polymer Science. , v. 118, n. 4, p. 2321 - 2327, 2010.
218995
10.1002/app.31670
2-s2.0-77956446251
Autor
Iamazaki E.T.
Pereira-Da-silva M.A.
Carvalho A.J.F.
Romero R.B.
Goncalves M.C.
Atvars T.D.Z.
Institución
Resumen
Evidence of the sorption of the whitening agent sodium 4,4′- distyrylbiphenyl sulfonate in the presence of the anionic surfactant sodium dodecylsulfate or the cationic surfactant dodecyl trimethyl ammonium chloride on regenerated cellulose fibers is given by several microscopy techniques. Scanning electron microscopy provided images of the cylindrical fibers with dimensions of 3.5 cm (length) and 13.3 lm (thickness), with empty cores of 1 μm diameter and a smooth surface. Atomic force microscopy showed a fiber surface with disoriented nanometric domains using both tapping-mode height and phase image modes. Atomic force microscopy also showed that the whitening agent and surfactant molecules were sorbed onto the fiber surface, in agreement with the adsolubilization sorption model. Transmission electron microscopy showed fibers with nanometric parallel cylinders, surrounded by holes where the fluorescent whitening molecules accumulated. On the basis of these techniques, we conclude that the sorption process occurs preferentially on the fiber surface in contact with the water solution, and under saturated conditions, the whitening agent penetrates into the pores and are simultaneously sorbed on the pore walls bulk, forming molecular aggregates. © 2010 Wiley Periodicals, Inc. 118 4 2321 2327 Pielesz, A., Wesełucha-Birczyńska, A., Freeman, H.S., Wlochowicz, A., (2005) Cellulose, 12, p. 497 Kreze, T., Strand, S., Stana-Kleinschek, K., Ribitsch, V., (2001) Mater. Res. Innov., 4, p. 107 Abu-Rous, M., Ingolic, E., Schuster, K.C., (2006) Cellulose, 13, p. 411 Jakob, H.F., Fengel, D., Tschegg, S.E., Fratzl, P., (1995) Macromolecules, 28, p. 8782 Há, M.A., Apperley, D.C., Evans, B.W., Huxham, M., Jardine, W.G., Vietor, R.J., Reis, D., Jarvis, M.C., (1998) Plant. J., 16, p. 183 Muller, M., Hori, R., Itoh, T., Sugiyama, J., (2002) Biomacromolecules, 3, p. 182 Nigmatullin, R., Lovitt, R., Wright, C., Linder, M., Nakari-Setala, T., Gama, A., (2004) Colloids Surf B. Biointerfaces, 35, p. 125 Zugenmaier, P., (2001) Prog. Polym. Sci., 26, p. 1341 Krassig, H., (1978) Tappi, 61, p. 93 Kotek, R., (2007) Handbook of Fiber Chemistry, p. 667. , 3rd ed. Lewin, M., Ed. CRC Press: New York Mikhailov, N.V., Gorbacheva, V.O., Krasova, I.I., Milkova, L.P., Bochkina, V.S., Nikolaeva, N.S., (1972) Fiber Chem., 2, p. 619 Iamazaki, E.T., Atvars, T.D.Z., (2007) Langmuir, 23, p. 12886 Iamazaki, E.T., Atvars, T.D.Z., (2006) Langmuir, 22, p. 9866 Stana-Kleinschek, K., Strand, S., Ribitsch, V., (1999) Polym. Eng. Sci., 39, p. 1412 Stana-Kleinschek, K., Pohar, C., Ribitsch, V., (1995) Colloid Polym. Sci., 273, p. 1174 Yamaki, S.B., Barros, D.S., Garcia, C.M., Socoloski, P., Oliveira, O.N., Atvars, T.D.Z., (2005) Langmuir, 21, p. 5414 Kim, J., Yun, S., Ounaies, Z., (2006) Macromolecules, 39, p. 4202 Iamazaki, E.T., Atvars, T.D.Z., (2008) Dyes Pigm, 76, p. 669 Aloulou, F., Boufi, S., Belgacem, N., Gandini, A., (2004) Colloid Polym. Sci., 283, p. 344 Alila, S., Boufi, S., Belgacem, M.N., Beneventi, D., (2005) Langmuir, 21, p. 8106 O'Haver, J.H., Harwell, J.H., In surfactant adsorption and surface solubilization (1995) ACS Symposium Series, 615, p. 49. , Sharma, R., Ed. American Chemical Society: Washington Talhavini, M., Atvars, T.D.Z., Schurr, O., Weiss, R.G., (1998) Polymer., 39, p. 3221