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Establishment of Equilibrium in Solutions of Thermoresponsive Polyoxazoline After Discrete Temperature Changes

Research paper by A. P. Filippov, A. I. Amirova, A. V. Ten′kovtsev

Indexed on: 01 Dec '15Published on: 01 Dec '15Published in: Fibre Chemistry



Abstract

Establishment of equilibrium after temperature changes of aqueous solutions of star-shaped eightarm poly(2-isopropyl-2-oxazoline) with calix[8]arene in the core was studied using light scattering. The times to establish equilibrium teq in the solution were determined as functions of temperature and concentration. It was found that teq increased several times (up to 10) compared with teq at low temperatures as the turbidity temperature was approached. It was shown that teq increased with increasing solution concentration.