Polymer migration influences

The latter, however, is also influenced by other variables, e.g. the viscosity of the buffer solution. On the other hand, it has been shown that the viscosity has no direct relationship to the sieving potential of the polymeric additive. In characterizing the potential of a sieving medium one is more interested in mobility differences than in their absolute values. The addition of the sieving polymer already influences the migration velocity of small (mono-molecular) molecules. The migration time of a small molecule increases with increasing polymer concentration as shown in Fig. 7 for the standard (4-aminopyridine) with different polymeric additives. 

Musnickas, J., Rupainyte, V., Treigiene, R. Dye migration influences on colour characteristics of wool fiber dyed with acid dye. Fibers Text East. Eirr. 13, 65-69 (2005) Alzeer, M., MacKerrzie, K.J.D. Synthesis and mechanical properties of new fibre-reinforced composites of inorganic polymers with natural wool fibres. J. Mater. Sci. 47, 6958-6965 (2012)... 

Various support media may be employed in electrophoretic techniques. Separation on agarose, acrylamide, and paper is influenced not only by electrophoretic mobiUty, but also by sieving of the samples through the polymer mesh. The finer the weave of selected matrix, the slower a molecule travels. Therefore, molecular weight or molecular length, as well as charge, can influence the rate of migration. 

The nature of the light emissions is influenced by the way in which the absorbed energy is transferred through the polymer matrix. In crystalline polymers, exciton migration is possible as all molecules lose their energetic individuality and all electronic and oscillation levels are coupled [20]. Thus, new exciton absorption and emission bands are formed and the excitation energy can move along the chain ... 

The time-dependent nature of migration and chemical reaction of free radicals [30] in irradiated polymers can play an important role in altering the polymer structure and properties, e.g., cross-link formation via reactive sites or chain scission, or postirradiation oxidative influences (irradiation in presence of air or oxygen). 

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