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A Study on Langmuir Monolayers of Methacrylate Homo- and Copolymers Derivatized with Disperse Red Dyes

Published online by Cambridge University Press:  10 February 2011

Anantharaman Dhanabalan ,
Débora Balogh ,
Carlos José Leopoldo Constantino ,
Antonio Riul Jr. ,
Osvaldo N. Oliveira Jr.  and
José A. Giacometti
Anantharaman Dhanabalan
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560–970, [email protected]
Débora Balogh
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560–970, [email protected]
Carlos José Leopoldo Constantino
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560–970, [email protected]
Antonio Riul Jr.
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560–970, [email protected]
Osvaldo N. Oliveira Jr.
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560–970, [email protected]
José A. Giacometti
Affiliation:
Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560–970, [email protected]
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Abstract

We report on the organization of different disperse red dye derivatized methacrylate homo- and copolymers as Langmuir monolayers at the air-water interface. The monolayers were investigated using surface pressure and surface potential isotherms. Methacrylic homopolymers containing disperse red-1 (HPDR1) and disperse red-13 (HPDR13) and methacrylic copolymers with different mole percentages of the dye and hydroxyethyl spacer groups were synthesized and characterized. A comparison of the monolayer characteristics of HPDR1 and HPDR13 revealed the influence of the chlorine substitution in the aromatic ring of the dye. Studies with copolymers indicated a clear transition in the monolayer behavior with the change of mole percentage of the dye incorporated in the polymer. While copolymers with low dye content (up to about 5 mole%) presented an expanded monolayer, the copolymers containing higher dye content (12% and above) formed a condensed monolayer similar to that of the homopolymer. These results indicated the critical role of the dye component in the polymer chain in forming the monolayer at the air-water interface.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 927
Copyright
Copyright © Materials Research Society 1998

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References

1. Tronin, A., Dubrovsky, T. and Nicolini, C., Thin Solid Films, 284–285, 894 (1996).10.1016/S0040-6090(95)08473-8Google Scholar
2. Gu, C., Sun, L., Zhang, T. and Li, T., Thin Solid Films, 284–285, 863 (1996).Google Scholar
3. Kim, Y.K., Sohn, M.H., Sohn, B.C., Kim, E. and Jung, S.D., Thin Solid Films, 284–285, 53 (1996).Google Scholar
4. Cheung, J.H. and Rubner, M.F., Thin Solid Films, 244, 990 (1994).Google Scholar
5. Watanabe, I., Hong, K. and Rubner, M.F., Langmuir, 6, 1164 (1990).Google Scholar
6. Dhanabalan, A., Riul, A. Jr., Mattoso, L.H.C. and Oliveira, O.N. Jr., Langmuir, 13, 4882 (1997).10.1021/la9703306Google Scholar
7. Liu, Z.F., Hashimoto, K. and Fujishima, A., Nature, 347, 658 (1990).Google Scholar
8. Nahata, A., Shan, J., Yardley, J.T. and Wu, C., J. Opt. Soc., Am. B. 10, 1553 (1993).10.1364/JOSAB.10.001553Google Scholar
9. Peng, J.B., Barnes, G.T., Schuster, A. and Ringsdorf, H., Thin Solid Films, 210/211, 16 (1992).Google Scholar
10. Dhanabalan, A., Balogh, D.T., Riul, A. Jr., Giacometti, A. and Oliveira, O.N. Jr., Thin Solid Films, in press.Google Scholar
11. Dhanabalan, A., Balogh, D.T., Mendonca, C.R., Riul, A. Jr., Constantino, C.J.L., Giacometti, A., Zilio, S.C. and Oliveira, O.N. Jr., J. Appl. Phys. (submitted).Google Scholar
12. Taylor, D.M., Oliveira, O.N. Jr. and Morgan, H., J. Coll. Interfac. Sci., 139, 508 (1990).Google Scholar