The Effect of Stirring on the Diffusion of Small Molecules from a Polymer Matrix into a Solution

 
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1993 (EN)
The Effect of Stirring on the Diffusion of Small Molecules from a Polymer Matrix into a Solution (EN)

Kondili, E. (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Kondili, E. (EN)

The probability for small molecules to travel between two points in space under diffusion and stirring in a time t is determined and used to find the amount of mass transferred from a polymer matrix into solution. Both diffusion and stirring govern the behaviour of the migrants; diffusion depends on the mean value of the diffusion coefficient and stirring forces the particles to move in a specific manner. The results of g.c. experiments, measuring the number of dioctylphthalate plasticizer molecules diffusing from the matrix of a poly(vinyl chloride) film into an oil solvent, with and without stirring, confirm the theoretical relationships. (EN)

stirring (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

Polymer (EN)

English

1993

<Go to ISI>://A1993LJ58900022

Elsevier (EN)



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