Hydration dynamics in aqueous Pluronic P123 solution: Concentration and temperature dependence

K Mukherjee, A Barman, R Biswas - The Journal of Chemical Physics, 2019 - pubs.aip.org
Here, we report the concentration (0≤ wt.%≤ 30) and temperature (293≤ T/K≤ 318)
dependent structural and dynamical changes in an aqueous solution of a triblock copolymer
(Pluronic P123) using dielectric relaxation spectroscopy (DRS), covering a frequency
regime, 0.2≤ ν/GHz≤ 50. Remarkable existence of slow water molecules,∼ 2 times slower
than bulk type water, along with bulk-like water molecules has been detected in the present
DR measurements. Differential scanning calorimetric measurements support this DR …
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