Kerr effect from fractal aggregates of polystyrene microspheres

Daniela Asnaghi; Marzio Giglio; Francesco Mantegazza; Mario Ettore Giardini; Vittorio Degiorgio

doi:10.1007/BF02458806

Kerr effect from fractal aggregates of polystyrene microspheres

Daniela Asnaghi, Marzio Giglio, Francesco Mantegazza, Mario Ettore Giardini, Vittorio Degiorgio

Biomedical Engineering

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

We study the slow aggregation of aqueous suspensions of optically isotropic microspheres by means of transient electric birefringence. Aggregating clusters exhibit large Kerr constants, and consequently we provide direct experimental evidence that the clusters do posses form anisotropy. From the birefringence relaxation time we derive information on the average cluster size and on the size distribution, and determine their evolution during the aggregation process. Static and dynamic light scattering data confirm the validity of the transient electric birefringence results.

Original language	English
Pages (from-to)	1237-1241
Number of pages	5
Journal	Nuovo Cimento D
Volume	16
Issue number	8
DOIs	https://doi.org/10.1007/BF02458806
Publication status	Published - 1994

Keywords

fractal aggregates
polystyrene microspheres
Kerr effect

Access to Document

10.1007/BF02458806

http://link.springer.com/article/10.1007%2FBF02458806

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Asnaghi, D., Giglio, M., Mantegazza, F., Giardini, M. E., & Degiorgio, V. (1994). Kerr effect from fractal aggregates of polystyrene microspheres. Nuovo Cimento D, 16(8), 1237-1241. https://doi.org/10.1007/BF02458806

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author = "Daniela Asnaghi and Marzio Giglio and Francesco Mantegazza and Giardini, {Mario Ettore} and Vittorio Degiorgio",

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T1 - Kerr effect from fractal aggregates of polystyrene microspheres

AU - Asnaghi, Daniela

AU - Giglio, Marzio

AU - Mantegazza, Francesco

AU - Giardini, Mario Ettore

AU - Degiorgio, Vittorio

PY - 1994

Y1 - 1994

N2 - We study the slow aggregation of aqueous suspensions of optically isotropic microspheres by means of transient electric birefringence. Aggregating clusters exhibit large Kerr constants, and consequently we provide direct experimental evidence that the clusters do posses form anisotropy. From the birefringence relaxation time we derive information on the average cluster size and on the size distribution, and determine their evolution during the aggregation process. Static and dynamic light scattering data confirm the validity of the transient electric birefringence results.

AB - We study the slow aggregation of aqueous suspensions of optically isotropic microspheres by means of transient electric birefringence. Aggregating clusters exhibit large Kerr constants, and consequently we provide direct experimental evidence that the clusters do posses form anisotropy. From the birefringence relaxation time we derive information on the average cluster size and on the size distribution, and determine their evolution during the aggregation process. Static and dynamic light scattering data confirm the validity of the transient electric birefringence results.

KW - fractal aggregates

KW - polystyrene microspheres

KW - Kerr effect

UR - http://link.springer.com/article/10.1007%2FBF02458806

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