The Formation of Multilayer Assemblies by Succesive Depositions of Oppositely Charged Polyelectrolytes

Succesive additions of anionic and cationic polyelectrolytes or colloid particles may lead to the formation of multilayer assemblies which yield a functional multilayer of polymers and colloids. The build-up of such multilayers is characterised by a step-wise increase of the adsorbed amount and laye...

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Bibliographic Details
Published in:KOBUNSHI RONBUNSHU 2000/06/25, Vol.57(6), pp.369-375
Main Authors: FURUSAWA, Kunio, SATOU, Shinya
Format: Article
Language:Japanese
Subjects:
Anionic Polyelectrolytes
Cationic Polyelectrolytes
Charge Stoichiometry
Composite Particle
Ionic Strength
Multilayers
Polyelectrolytes
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Summary:Succesive additions of anionic and cationic polyelectrolytes or colloid particles may lead to the formation of multilayer assemblies which yield a functional multilayer of polymers and colloids. The build-up of such multilayers is characterised by a step-wise increase of the adsorbed amount and layer thickness, and by alternating highly positive and highly negative values for the ζ-potential of the substrate particles. The stability of the multilayer is shown to depend strongly on the ionic species and concentration of added salt, on the electrostatic interactions between polymers, and these between polymer and adsorbent surface. The formation of multilayers including solid particles was found to be rather sensitive to the particle size and monodispersity of the component particles.
ISSN:0386-2186
1881-5685
DOI:10.1295/koron.57.369