title: Thermodynamic properties of aqueous PEO-PPO-PEO micelles with added methylparaben determined by differential scanning calorimetry.
abstract: 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.
authors.affiliation: Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA. andrelt@umich.edu
authors.forename: Andre Lamont
authors.initials: AL
authors.lastname: Thompson
authors.forename: Brian James
authors.initials: BJ
authors.lastname: Love
mesh_terms: D002152:Calorimetry, Differential Scanning; D008823:Micelles; D010226:Parabens / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry*; D011409:Propylene Glycols / Q000737:chemistry*; D013816:Thermodynamics; D014867:Water / Q000737:chemistry
chemical_list: D008823:Micelles; C116176:PEO-PPO-PEO; D010226:Parabens; D011409:Propylene Glycols; D014867:Water; D011092:Polyethylene Glycols; C015358:methylparaben