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Collective dynamics in dispersions of anisometric pigment particles
Authors
Pavan Kumar Challa
Alexey Eremin
+6 more
Antal Jakli
Kyongok Kang
Susanne Klein
Kathrin May
Samuel Sprunt
Ralf Stannarius
Publication date
1 January 2018
Publisher
'Elsevier BV'
Doi
Cite
Abstract
© 2018 Elsevier B.V. Dynamics of suspensions of solid rodlike pigment particles in a non-polar solvent were studied in a concentration range from the isotropic up to the orientationally ordered nematic-like phase. Using dynamic light scattering and gradient recovery measurements, we studied the rotational and translational diffusion coefficients. We demonstrate that the translational diffusion coefficient in this system is increasing with increasing concentration of the pigment particles in the vicinity of the transition into an ordered phase. This unexpected behaviour can be attributed to the collective interactions between the particles and the alignment effects
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info:doi/10.1016%2Fj.molliq.20...
Last time updated on 07/01/2021