FLUORESCENCE STUDIES FOR IN SITU MONITORING OF THE HYDROLYSIS AND POLYMERIZATION REACTIONS OF ORGANICALLY –MODIFIED TETRAMETHYLORTHOSILICATE

https://doi.org/10.22146/ijc.21806

Eko Sri Kunarti(1*)

(1) Chemistry Department, Faculty of Mathematics and Natural Sciences Gadjah Mada University, Yogyakarta 55281
(*) Corresponding Author

Abstract


Monitoring of hydrolysis and condensation polymerization reactions of tetramethylorthosilicate-organosiloxane have been carried out. Proton transfer from the excited state of 8-hydroxy-1,3,6-pyrenetrisulfonic acid trisodium salt (pyranine) to surrounding water molecules was used as a sensitive fluorescence method for following the kinetics of water consumption during the early stages of the sol-gel polymerisation process. Changes in water/silane ratio, type of organosiloxane, mol ratio of organosiloxane to silica precursor and pH affected markedly the kinetic behavior of the hydrolysis and condensation reaction of tetramethylorthosilicate.


Keywords


hydrolysis; polymerisation; fluorescence; pyranine; tetramethylorthosilicate; organosiloxane

Full Text:

Full Text PDF


References

[1] Iler, R.K., 1979, The Chemistry of Silica: Solubility, Polymerization, Colloid and Surface Properties and Biochemistry, John Wiley and Sons, Toronto.

[2] Yamane, M., Aso, S. and Sakaino, T., 1978, J. Mater. Sci., 13, 865-870.

[3] Klein, L.C., Gallo, T.A. and Garvey, G.J., 1984, J. Non-Cryst. Solids, 63, 23-33.

[4] Aelion, R., Loebel, A. and Eirich, F., 1950, J. Am. Chem. Soc., 72, 5705-5712.

[5] Aelion, R., Loebel, A. and Eirich, F., 1950, Recueil des Travaux Chimiques des Pays-Bas et de la Belgique, 69, 61-75.

[6] Schmidt, H., Scholze, H. and Kaiser, A., 1984, J. Non-Cryst. Solids, 63, 1-11.

[7] Brinker, C.J. and Scherer, G., 1990, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing, Academic Press, San Diego.

[8] Hench L.L. and West, J.K., 1990, Chem. Rev., 90, 33-72.

[9] Chang, S.Y. and Ring, T.A., 1992, J. Non-Cryst. Solids, 147-148, 56-61.

[10] Sanchez, J. and McCormick, A., 1992, J. Phys. Chem., 96, 8973-8979.

[11] Assink, R.A. and Kay, B.D., 1990, Mater. Res. Soc. Symp. Proc., 180, 21-28

[12] Artaki, I., Bradley, M., Zerda, T.W. and Jonas, J., 1985, J. Phys. Chem., 89, 4399-404.

[13] Grimmer, A.R., Rosenberger, H., Buerger, H. and Vogel, W., 1988, J. Non-Cryst. Solids, 99, 371-378.

[14] Assink, R.A. and Kay, B.D., 1988, J. Non-Cryst. Solids, 99, 359-370.

[15] Ro, J.C. and Chung, I.J., 1989, J. Non-Cryst. Solids, 110, 26-32.

[16] Niznansky, D. and Rehspringer, J.L., 1995, J. Non-Cryst. Solids, 180, 191-196.

[17] Zerda, T.W. and Hoang, G., 1989, J. Non-Cryst. Solids, 109, 9-17.

[18] Matos, M.C., Ilharco, L.M. and Almeida, R.M., 1992, J. Non-Cryst. Solids, 147-148, 232-237.

[19] Orcel, G., Hench, L.L., Artaki, I., Jonas, J. and Zerda, T.W., 1988, J. Non-Cryst. Solids, 105, 223-231.

[20] Kaufman, V.R., Avnir, D., Pines-Rojanski, D. and Huppert, D., 1988, J. Non-Cryst. Solids, 99, 379-386.

[21] Wasiucionek, M. and Breiter, M.W., 1997, J. Non-Cryst. Solids, 220, 52-57.

[22] Bardez, E., Goguillon, B.T., Keh, E. and Valuer, B., 1984, J. Phys. Chem., 88, 1909-1913.

[23] Ireland, J.F. and Wyatt, P.A.H., 1976, Adv. Phys. Org. Chem., 12, 131-221.

[24] Huppert, D. and Kolodney, E., 1981, Chem. Phys., 63, 401-410.

[25] Smith, K.K., Kaufman, K.J., Huppert, D. and Gutman, M., 1979, Chem. Phys. Lett., 64, 522-527.

[26] Schubert, U. and Husing, N., 2000, Synthesis of Inorganic Materials, Wiley-VCH, Weinheim,

[27] Wilkes, G.L., Orler, B. and Huang, H.H., 1985, Polym. Prepr., 26, 300-302.

[28] Huang, H.H., Orler, B. and Wilkes, G.L., 1987, Macromolecules, 20, 1322-1330.

[29] Mackenzie, J.D., Chung, Y.J. and Hu, Y., 1992, J. Non-Cryst. Solids, 147-148, 271-279.

[30] Guo, L., Hyeon-Lee, J. and Beaucage, G., 1999, J. Non-Cryst. Solids, 243, 61-69.



DOI: https://doi.org/10.22146/ijc.21806

Article Metrics

Abstract views : 1042 | views : 886


Copyright (c) 2010 Indonesian Journal of Chemistry

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

 

Indonesian Journal of Chemistry (ISSN 1411-9420 /e-ISSN 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

Web Analytics View The Statistics of Indones. J. Chem.