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Lookup NU author(s): Professor Mark Geoghegan
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
© 2019 Elsevier LtdThe Flory-Huggins free energy of mixing is shown to be appropriate for the analysis of the temporal evolution of a ternary blend of polystyrene and poly (methyl methacrylate) during spin-coating from toluene using an in-situ light scattering technique. For the range of concentrations studied, both the onset of film instability and the observation of a scattering ring occur at the same toluene volume fraction. The success of Flory-Huggins theory indicates that polymer chains retain random walk characteristics during spin-coating. It is also concluded that the thermodynamics of phase separation during film formation is independent of the initial solvent concentration.
Author(s): Mouhamad Y, Mokarian-Tabari P, Jones RAL, Geoghegan M
Publication type: Article
Publication status: Published
Print publication date: 12/09/2019
Online publication date: 13/06/2019
Acceptance date: 13/06/2019
Date deposited: 05/08/2021
ISSN (print): 0032-3861
ISSN (electronic): 1873-2291
Publisher: Elsevier Ltd
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