Test of theories of flory, ptitsyn, and kurata for dilute polymer solutions

Abstract

Abstract The linear expansion factor α for the fractions of amylose acetate in various solvent–nonsolvent mixtures at different temperatures have been determined using Kurata's relationship. The validity of the Flory, Kurata, and Ptitsyn theories has been tested in terms of the dependence of the function of α on molecular weight. It has been found that Flory's theory is not applicable while the Kurata and Ptitsyn theories are in good agreement.