Comparative thermodynamic study of functional polymeric latex particles with different morphologies

R. Santillán, E. Nieves, P. Alejandre, E. Pérez, J. M. Del Río, M. Corea

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this work, the thermodynamic behavior of three series of functionalized polymeric particles with different morphologies and different functional group concentrations were compared. Partial volumes and partial adiabatic compressibilities of particles at infinite dilution were calculated from density and sound speed data. These properties were interpreted in terms of the atomic, free volume and hydration contributions. In addition, this interpretation was extended to the particle components (polar and non-polar groups), developing a new thermodynamic methodology. For homogeneous particles without forced gradient, functional groups are located from the surface to the interior and the voidness effect plays an important role in the swelling process. In multilayer particles, functional groups are located at the boundary of each layer and they are completely hydrated while non-polar groups behave as a permeable membrane at high functional groups concentrations. Homogeneous particles with forced gradient behave as homogeneous particles without forced gradient at low functional groups concentrations and as a multilayer particle at higher concentrations of functional groups. In conclusion the shown thermodynamic tool allowed understanding the role played by each particle component and its interactions inside the particle. © 2013 Elsevier B.V.
Original languageAmerican English
Pages (from-to)189-208
Number of pages168
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
DOIs
StatePublished - 5 Mar 2014
Externally publishedYes

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Latex
latex
Latexes
Functional groups
Particles (particulate matter)
Thermodynamics
thermodynamics
Multilayers
gradients
Free volume
Compressibility
Hydration
Dilution
Swelling
Acoustic waves
Membranes
swelling
compressibility
dilution
hydration

Cite this

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title = "Comparative thermodynamic study of functional polymeric latex particles with different morphologies",
abstract = "In this work, the thermodynamic behavior of three series of functionalized polymeric particles with different morphologies and different functional group concentrations were compared. Partial volumes and partial adiabatic compressibilities of particles at infinite dilution were calculated from density and sound speed data. These properties were interpreted in terms of the atomic, free volume and hydration contributions. In addition, this interpretation was extended to the particle components (polar and non-polar groups), developing a new thermodynamic methodology. For homogeneous particles without forced gradient, functional groups are located from the surface to the interior and the voidness effect plays an important role in the swelling process. In multilayer particles, functional groups are located at the boundary of each layer and they are completely hydrated while non-polar groups behave as a permeable membrane at high functional groups concentrations. Homogeneous particles with forced gradient behave as homogeneous particles without forced gradient at low functional groups concentrations and as a multilayer particle at higher concentrations of functional groups. In conclusion the shown thermodynamic tool allowed understanding the role played by each particle component and its interactions inside the particle. {\circledC} 2013 Elsevier B.V.",
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Comparative thermodynamic study of functional polymeric latex particles with different morphologies. / Santillán, R.; Nieves, E.; Alejandre, P.; Pérez, E.; Del Río, J. M.; Corea, M.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, 05.03.2014, p. 189-208.

Research output: Contribution to journalArticle

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AU - Alejandre, P.

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AU - Del Río, J. M.

AU - Corea, M.

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