Rigid Backbone Polymers, XIII: Effects of the Nature of the Solvent on the Lyotropic Mesomorphicity of Cellulose Acetate

Abstract

The behavior of cellulose acetate was studied in over 30 solvents. It was found that the concentration C* at which the anisotropic phase appears, is dependent on the nature of the solvent. In strong or moderately strong acids, C* is linearly dependent on pK, that is, the stronger the acid the lower the concentration at which anisotropy makes its first appearance. In other solvents, C* is inversely dependent on the molar volume of the solvent.