Additive diffusion coefficients in polyolefins. II. Effect of swelling and temperature on the D = f(M) correlation |
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| Authors: | Alain Reynier Patrice Dole Alexandre Feigenbaum |
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| Affiliation: | INRA SQuAlE CPCB Moulin de la Housse, BP 1039, F 51687 Reims Cedex 2, France |
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| Abstract: | Diffusion coefficients of a large panel of molecules were experimentally measured in virgin polypropylene at 40 and 70°C and in swollen polypropylene at 40°C. The influence of mobility increase brought out by temperature or swelling are compared. The effects are more important for high molecular weight compounds. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 2434–2443, 2001 |
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| Keywords: | diffusion coefficient additive swelling temperature activation energy |
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