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Partial Volume and Compressibility at Infinite Dilution of Functionalized Multilayer Latex Particles by A. Pérez; A. Ruíz; R. Santillán; J.M. del Río; M. Corea is a Materials Science article available to read on EtoBox.

What is Partial Volume and Compressibility at Infinite Dilution of Functionalized Multilayer Latex Particles about?

A series of functionalized multilayer latex particles of P(butyl acrylate-methyl methacrylate-acrylic acid) was synthesized. The total acrylic acid concentration inside particles was varied from 0 to 25 wt.% and the number of particles in the system was held constant. The polymeric particles were studied by means of specific partial volume and specific partial compressibility at infinite dilution, which were calculated from density and sound speed measurements. From the behaviour of the partial properties at infinite dilution of the polar and non-polar groups of the polymer chain, it was concluded that the particle swells at low acrylic acids content due to the electrostatic repulsion between the carboxylic groups of the polymer chain. From 15 wt.% of acrylic acid up, the particle swells due to the electrostatic repulsion and to the incorporation of water molecules in the bounds of the particle layers. In this way, the hydration is non-homogeneous in the interior of each layer. These results are in agreement with the behaviour of the hydrodynamic radius determined by the quasi-elastic light scattering technique.

Who reads Partial Volume and Compressibility at Infinite Dilution of Functionalized Multilayer Latex Particles?

Author

A. Pérez; A. Ruíz; R. Santillán; J.M. del Río; M. Corea

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1381-5148)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)