Artículos de revistas
Detection Of Residual Acidic Groups In Several Poly(n-alkyl Methacrylate)s Using Photopnysical And Photochemical Probes
Registro en:
Journal Of Applied Polymer Science. , v. 92, n. 2, p. 830 - 838, 2004.
218995
2-s2.0-1642409927
Autor
Christoff M.
Yamaki S.B.
De Oliveira M.G.
Atvars T.D.Z.
Institución
Resumen
This work describes three different methods for detecting acidic groups copolymerized in poly(methyl methacrylate), poly(ethyl methacrylate), and poly(n-butyl methacrylate) chains using molecular spectroscopy. The first was based on the shift of the tautomeric equilibrium of 4-dimethylaminoazobenzene by acidic groups that modify the absorption band in the UV/vis spectra. We also show that the acidic groups present in the polymer influenced the anti-syn photoisomerization reaction of this dye. Further, a mercury- dithizonate complex was completely bleached when sorbed in poly(n-alkyl methacrylate) matrices containing acidic groups. Finally, Nile Blue A was used as a spectrophotometric probe to quantify the amount of acidic groups in these polymers. © 2004 Wiley Periodicals, Inc. 92 2 830 838 Mark, H.F., Bikales, M., Overberger, C.G., Menges, G., (1985) Encyclopedia of Polymer Science and Engineering, 1, p. 234. , Wiley: New York Mandai, B.K., Chen, Y.M., Jeng, R.J., Takahashi, T., Huang, J.C., Kumar, J., (1991) Eur Polym J, 27, p. 735 Chemlaand, D.S., Zyss, J., (1987) Nonlinear Optical Properties of Organic Materials and Crystals, , Academic Press New York Liu, L.-Y., Ramkrishna, D., Lackritz, H., (1994) Macromolecules, 27, p. 5947 Itagaki, H., Horie, K., Mita, I., (1990) Prog Polym Sci, 15, p. 361 Naciri, J., Weiss, R.G., (1989) Macromolecules, 22, p. 3928 Prado, E.A., Yamaki, S.B., Atvars, T.D.Z., Zimerman, O.E., Weiss, R.G., (2000) J Phys Chem B, 104, p. 5905 Palit, S.R., Gosh, P., (1962) J Polym Sci, 58, p. 1225 Rabeck, F., (1989) Experimental Methods in Polymer Chemistry: Physical Principles and Applications, , Wiley-Interscience: New York Bagder, M., Buttery, R.G., Lewis, G.E., (1954) J Chem Soc, p. 1888 Jaffé, H.H., Yeh, S.J., Gardner, R.W., (1958) J Mol Spectrosc, 2, p. 120 Dubini-Paglia, E., Marcandali, B., Liddo, L.P., Leonardi, C., Bellobono, I.R., (1980) J Chem Soc Perkin Trans II, p. 937 Sawicki, E., (1957) J Org Chem, 22, p. 365 Sawicki, E., (1957) J Org Chem, 22, p. 915 Yamaki, S.B., (1996), M.S. Dissertation, UNICAMP, BrazilDe Oliveira, M.G., (1992), Ph.D. Thesis, UNICAMP, BrazilPetersen, R.L., Harris, G.L., (1985) J Chem Educ, 62, p. 802 Geosling, C., Adamson, A.W., Gutierrez, A.R., (1978) Inorg Chim Acta, 29, p. 279 Meriweth, L.S., Breitner, E.C., Sloan, C.L.L., (1965) J Am Chem Soc, 87, p. 4441 Meriweth, L.S., Breitner, E.C., Colthup, N.B., (1965) J Am Chem Soc, 87, p. 4448 Moharram, M.A., Shabaka, A.A., Khafagi, M.G., (1991) J Appl Polym Sci, 42, p. 2121 Krihak, M., Murtagh, M.T., Shahriari, M.R., (1997) J Sol-gel Sci Technol, 10, p. 153 Douhal, A.J., (1994) J Phys Chem, 98, p. 13131 Lillie, R.D., (1956) J Histochem Cytochem, 4, p. 377 Ostle, A.G., Holt, J.G., (1982) Appl Environ Microbiol, 44, p. 238 Van Staveren, H.J., Speelman, O.C., Witjes, M.J.H., Cincotta, L., Star, W.M., (2001) Photochem Photobiol, 73, p. 32 Kolthoff, I.M., Rosenblum, C., (1937) Acid-base Indicators, , Macmillan: New York Zimmerman, G., Glow, L.Y., Paik, U.J., (1958) J Am Chem Soc, 80, p. 3528 Blanc, J., (1970) J Phys Chem, 74, p. 4037 Liu, J., Jean, Y.C., Yang, H.J., (1995) Macromolecules, 28, p. 5774 Lamarre, L., Sung, C.S.P., (1983) Macromolecules, 16, p. 1729 Hooke, J.C., Torkelson, J.M., (1995) Macromolecules, 28, p. 7683 Irie, M., (1990) Pure Appl Chem, 62, p. 1495 Talhavini, M., Atvars, T.D.Z., (1999) J Photochem Photobiol A: Chem, 120, p. 141 Talhavini, M., Corradini, W., Atvars, T.D.Z., (2001) J Photochem Photobiol A: Chem, 139, p. 187 Levitus, M., Talhavini, M., Negri, R.M., Atvars, T.D.Z., Aramendia, P.F., (1997) J Phys Chem B, 101, p. 7680 Christoff, M., Atvars, T.D.Z., (1999) Macromolecules, 32, p. 6903