Electric birefringence study of the dielectric properties of anisotropic and electrically charged latex particles

Vittorio Degiorgio; Francesco Mantegazza; Mario Ettore Giardini; Roberto Piazza; Tommaso Bellini

doi:10.1051/jp4:1993112

Electric birefringence study of the dielectric properties of anisotropic and electrically charged latex particles

Vittorio Degiorgio, Francesco Mantegazza, Mario Ettore Giardini, Roberto Piazza, Tommaso Bellini

Biomedical Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Static and dynamic electric birefringence measurements are performed on aqueous dispersions of electrically charged fluorinated latex particles having an almost spherical shape. The Kerr constant is nonzero because of the intrinsic and form anisotropy of the particles, and is considerably enhanced at low frequencies by a contribution due to the cloud of dissociated counterions. We discuss in detail this effect which shows a non-Lorentzian frequency dispersion, and an amplitude strongly dependent on the particle concentration and on the ionic strength. The data are interpreted by making a connection with the theory of the dielectric constant of polyelectrolyte solutions.

Original language	English
Pages (from-to)	C1-129 - C1-142
Number of pages	14
Journal	Journal de Physique 4
Volume	3
Issue number	C1
DOIs	https://doi.org/10.1051/jp4:1993112
Publication status	Published - 1993

Keywords

electric birefringence study
latex particles
dielectric properties
anisotropic
electrically charged

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10.1051/jp4:1993112

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title = "Electric birefringence study of the dielectric properties of anisotropic and electrically charged latex particles",

abstract = "Static and dynamic electric birefringence measurements are performed on aqueous dispersions of electrically charged fluorinated latex particles having an almost spherical shape. The Kerr constant is nonzero because of the intrinsic and form anisotropy of the particles, and is considerably enhanced at low frequencies by a contribution due to the cloud of dissociated counterions. We discuss in detail this effect which shows a non-Lorentzian frequency dispersion, and an amplitude strongly dependent on the particle concentration and on the ionic strength. The data are interpreted by making a connection with the theory of the dielectric constant of polyelectrolyte solutions.",

keywords = "electric birefringence study, latex particles, dielectric properties, anisotropic, electrically charged",

author = "Vittorio Degiorgio and Francesco Mantegazza and Giardini, \{Mario Ettore\} and Roberto Piazza and Tommaso Bellini",

year = "1993",

doi = "10.1051/jp4:1993112",

language = "English",

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pages = "C1--129 -- C1--142",

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TY - JOUR

T1 - Electric birefringence study of the dielectric properties of anisotropic and electrically charged latex particles

AU - Degiorgio, Vittorio

AU - Mantegazza, Francesco

AU - Giardini, Mario Ettore

AU - Piazza, Roberto

AU - Bellini, Tommaso

PY - 1993

Y1 - 1993

N2 - Static and dynamic electric birefringence measurements are performed on aqueous dispersions of electrically charged fluorinated latex particles having an almost spherical shape. The Kerr constant is nonzero because of the intrinsic and form anisotropy of the particles, and is considerably enhanced at low frequencies by a contribution due to the cloud of dissociated counterions. We discuss in detail this effect which shows a non-Lorentzian frequency dispersion, and an amplitude strongly dependent on the particle concentration and on the ionic strength. The data are interpreted by making a connection with the theory of the dielectric constant of polyelectrolyte solutions.

AB - Static and dynamic electric birefringence measurements are performed on aqueous dispersions of electrically charged fluorinated latex particles having an almost spherical shape. The Kerr constant is nonzero because of the intrinsic and form anisotropy of the particles, and is considerably enhanced at low frequencies by a contribution due to the cloud of dissociated counterions. We discuss in detail this effect which shows a non-Lorentzian frequency dispersion, and an amplitude strongly dependent on the particle concentration and on the ionic strength. The data are interpreted by making a connection with the theory of the dielectric constant of polyelectrolyte solutions.

KW - electric birefringence study

KW - latex particles

KW - dielectric properties

KW - anisotropic

KW - electrically charged

UR - http://dx.doi.org/10.1051/jp4:1993112

U2 - 10.1051/jp4:1993112

DO - 10.1051/jp4:1993112

M3 - Article

SN - 1155-4339

VL - 3

SP - C1-129 - C1-142

JO - Journal de Physique 4

JF - Journal de Physique 4

IS - C1

ER -

Electric birefringence study of the dielectric properties of anisotropic and electrically charged latex particles

Abstract

Keywords

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