Shear rheology and phase behaviour of sodium oleate/water mixtures

• Author(s): Antunes, Filipe E. ; Coppola, Luigi ; Gaudio, Danilo ; Nicotera, Isabella ; Oliviero, Cesare
• Date: 2007
• Persistent ID: http://hdl.handle.net/10316/5050
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): Sodium oleate; Steady and oscillatory rheology; NMR-diffusometry; Micellar and hexagonal phases
• Document Type: Article
• Language: English

Description

The knowledge of structural and dynamical properties in binary sodium oleate (NaO)/water mixtures represents a first step for studying new biocompatible structures. In addition, a deeper understanding of their flow behaviour is crucial to control their mechanical properties. The purpose of this investigation was to revisit the binary NaO/water phase diagram through a combined effort of shear-rheology, NMR-diffusometry, optical polarizing microscopy and differential scanning calorimetry. The preparation of NaO/water mixtures in this work fitted with the interesting regions of the phase diagrams where most of the new systems will be prepared (i.e. from 0.01 to 30 wt.% NaO and within the temperature range 5-70 °C). http://www.sciencedirect.com/science/article/B6TFR-4M57J28-3/1/e8059503031b239fb1f4e2101ad70f57