A Comparison of the Phase Behaviour of Polystyrene in Cycloalkanes and n‐Alkanes

Abstract

Cloud point curves for several narrow fractions of polystyrene dissolved in cycloheptane, in cyclooctane and in cyclodecane have been established, and the critical solution temperatures extrapolated to give the respective temperatures. All three cycloalkanes are good solvents for the polymer. A comparison is made between the phase behaviour of polystyrene dissolved in cyclic alkanes and in n-alkanes using free volume polymer solution theory.