Abstract
A method was developed for the evaluation of isothermal and dynamic thermogravimetric measurements of the desorption of low molecular weight compounds dissolved in polymers. The method is based on a solution of the non-linear equation for the diffusion of the low molecular weight compounds. Experimental data were analyzed for the desorption of alcohol from PMMA and of iodine from ion-exchange resins, the latter being strongly influenced by the degree of association of the polyiodide in the anions.
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