Frequency resolved electric birefringence measurements were made on dilute aqueous suspensions of charged, rodlike latex particles. Ionic amphiphile adsorption was used to vary the particle charge as described in the first paper of this series [J. Chem. Phys. 103, 8228 (1995)]. Using the high frequency part of the birefringence spectra, the electric polarizability is computed from the Kerr constant following the approach set out in the second paper of the series [J. Chem. Phys. 109, 6905 (1998)]. Then, the polarizability spectra were interpreted with our extended Maxwell-Wagner model [J. Chem. Phys. 113, 6974 (2000), preceding paper]. Theory and experiment are in good agreement. The procedure provides a new and simple way to extract the particle charge from birefringence data. (C) 2000 American Institute of Physics. [S0021-9606(00)51140-4].

Electrokinetic properties of colloids of variable charge. III. Observation of a Maxwell-Wagner relaxation mechanism by high-frequency electric-birefringence spectroscopy / F. Mantegazza, T. Bellini, M. Buscaglia, V. Degiorgio, D. Saville. - In: THE JOURNAL OF CHEMICAL PHYSICS. - ISSN 0021-9606. - 113:16(2000), pp. 6984-6991. [10.1063/1.1311594]

Electrokinetic properties of colloids of variable charge. III. Observation of a Maxwell-Wagner relaxation mechanism by high-frequency electric-birefringence spectroscopy

T. Bellini
Secondo
;
M. Buscaglia;
2000

Abstract

Frequency resolved electric birefringence measurements were made on dilute aqueous suspensions of charged, rodlike latex particles. Ionic amphiphile adsorption was used to vary the particle charge as described in the first paper of this series [J. Chem. Phys. 103, 8228 (1995)]. Using the high frequency part of the birefringence spectra, the electric polarizability is computed from the Kerr constant following the approach set out in the second paper of the series [J. Chem. Phys. 109, 6905 (1998)]. Then, the polarizability spectra were interpreted with our extended Maxwell-Wagner model [J. Chem. Phys. 113, 6974 (2000), preceding paper]. Theory and experiment are in good agreement. The procedure provides a new and simple way to extract the particle charge from birefringence data. (C) 2000 American Institute of Physics. [S0021-9606(00)51140-4].
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Article (author)
File in questo prodotto:
File Dimensione Formato  
2000 JCP.pdf

accesso riservato

Tipologia: Publisher's version/PDF
Dimensione 117.88 kB
Formato Adobe PDF
117.88 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/945803
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 29
  • ???jsp.display-item.citation.isi??? 30
social impact