Abstract
Phase equilibrium investigations have been carried out for solutions of polystyrene in cyclohexane, and for polyoxypropylene diol in water, hexane and octane, and temperature dependences of the light scattering, optical density and viscosity of the solutions have been determined. Association of macromolecules was detected in the vicinity of temperatures for phase separation, and these association processes have been compared with the thermodynamic criteria of upper and lower consolute temperatures.
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