Thermodynamic properties of aqueous PEO-PPO-PEO micelles with added methylparaben determined by differential scanning calorimetry

Brian Love

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AL Thompson and BJ Love (2013)

Journal of Colloid and Interface Science, 398:270-272.

DSC experiments were performed on aqueous solutions of PEO-PPO-PEO (P105) amphiphiles in the low concentration regime (0-1\%) to resolve the critical micelle concentration (cmc) both neat and co-formulated with methylparaben (MP). Further work was done at 10\% amphiphilic copolymer concentrations and co-formulated with MP to resolve the variations in enthalpy. The compensation temperature, T-compensation, was determined from the analyses for neat P105 as 293.9 K; adding MP raises this to 328.43 K. (C) 2013 Elsevier Inc. All rights reserved.

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