Measurement of cloud point temperature in polymer solutions
- Autori: Mannella, G.A.; La Carrubba, V.; Brucato, V.M.B.
- Anno di pubblicazione: 2013
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: Polymer solutions, Phase separation, Phase diagram
- OA Link: http://hdl.handle.net/10447/90193
Abstract
A temperature-controlled turbidity measurement apparatus for the characterization of polymer solutions has been instrumented and set up. The main features are the coupled temperature-light transmittance measurement and the accurate temperature control, achieved by means of peltier cells. The apparatus allows to measure cloud point temperatures by adopting different cooling protocols: low rate for quasi-equilibrium measurements and high rate for detect kinetic effects. A ternary polymeric solution was adopted as case study system showing that cooling rate affects the measured cloud point temperature. © 2013 AIP Publishing LLC.