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Thermodynamics of swelling of latex particles with two monomers: A sensitivity analysis

✍ Scribed by Maxwell, Ian A. ;Noel, Lilian F. J. ;Schoonbrood, Harold A. S. ;German, Anton L.

Publisher: Wiley (John Wiley & Sons)
Year: 1993
Weight: 317 KB
Volume: 2
Category: Article
ISSN: 1018-5054
DOI: 10.1002/mats.1993.040020209

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✦ Synopsis

Abstract

A sensitivity analysis is performed to determine at what conditions the simplified model for swelling of latex particles by two monomers or two solvents is valid. This model proposes that, inter alia, the fractions of two monomers in the latex particles and in the monomer droplets are equal. The model is a simplified version of that proposed by Ugelstad et al. and results from the use of three assumptions, namely (1) the molar volumes of the monomers are equal, (2) the interaction parameters between the two monomers are equal and (3) the interaction parameters between each of the monomers and the polymer are equal. It is shown by simulation that these assumptions are of algebraic necessity only. The simple model is always valid when utilizing realistic values for all the appropriate parameters for partially water soluble monomers that swell the polymer.

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