Sedimentation Equilibrium in Concentrated Polymer Solutions

摘要

It has been shown that sedimentation equilibrium can be obtained in polymer solutions of concentration as high as 20 percent by weight. This equilibrium has been approached from both sides, with identical results. The virial coefficients for the osmotic pressure may be calculated from experiments of this kind. The results are in good agreement with the osmotic pressure data of other investigators for polystyrene in butanone and polyvinyl acetate in butanone.