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Abstract:

A rapid measurement of the components R and XL of AT-cut quartz crystal electroacoustic impedance at 10 MHz is reported. Parametric impedance plane plots (XL vs. R) are introduced to analyse the effect of mass/volume and viscoelastic changes in the films and liquids in contact with the quartz crystal during dynamic chemical or electrochemical processes. Experimental data for selected systems, viscoelastic films and liquids, self-assembled layers and electroactive polymers, are presented. These results are discussed on the basis of the model of Granstaff and Martin to describe the real and imaginary components of the Butterworth-van Dyke (BVD) equivalen circuit impedance in terms of the density, mass and shear modulus of the viscoelastic film or liquid. The possibility of separating the inertial (rigid) mass and the viscoelastic components of quartz impedance when dynamic processes take place is analysed for the selected experimental data presented.

Registro:

Documento: Artículo
Título:Quartz crystal impedance studies at 10 MHz of viscoelastic liquids and films
Autor:Calvo, E.J.; Etchenique, R.; Bartlett, P.N.; Singhal, K.; Santamaria, C.
Filiación:INQUIMAE-Depto. Quim. Inorg., A., Universidad de Buenos Aires, Ciudad Universitaria, AR-1428 Buenos Aires, Argentina
Chemistry Department, University of Southampton Highfield, Southampton, SO17 1BJ, United Kingdom
Facultad de Quimica, Universidad del Pais Vasco, San Sebastian, Spain
CONICET, Argentina
Año:1997
Volumen:107
Página de inicio:141
Página de fin:157
DOI: http://dx.doi.org/10.1039/a703551i
Título revista:Faraday Discussions
Título revista abreviado:Faraday Discuss.
ISSN:13596640
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13596640_v107_n_p141_Calvo

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Citas:

---------- APA ----------
Calvo, E.J., Etchenique, R., Bartlett, P.N., Singhal, K. & Santamaria, C. (1997) . Quartz crystal impedance studies at 10 MHz of viscoelastic liquids and films. Faraday Discussions, 107, 141-157.
http://dx.doi.org/10.1039/a703551i
---------- CHICAGO ----------
Calvo, E.J., Etchenique, R., Bartlett, P.N., Singhal, K., Santamaria, C. "Quartz crystal impedance studies at 10 MHz of viscoelastic liquids and films" . Faraday Discussions 107 (1997) : 141-157.
http://dx.doi.org/10.1039/a703551i
---------- MLA ----------
Calvo, E.J., Etchenique, R., Bartlett, P.N., Singhal, K., Santamaria, C. "Quartz crystal impedance studies at 10 MHz of viscoelastic liquids and films" . Faraday Discussions, vol. 107, 1997, pp. 141-157.
http://dx.doi.org/10.1039/a703551i
---------- VANCOUVER ----------
Calvo, E.J., Etchenique, R., Bartlett, P.N., Singhal, K., Santamaria, C. Quartz crystal impedance studies at 10 MHz of viscoelastic liquids and films. Faraday Discuss. 1997;107:141-157.
http://dx.doi.org/10.1039/a703551i