J
J.G E M Fraaije
Researcher at University of Groningen
Publications - 19
Citations - 1514
J.G E M Fraaije is an academic researcher from University of Groningen. The author has contributed to research in topics: Density functional theory & Mesoscopic physics. The author has an hindex of 15, co-authored 19 publications receiving 1436 citations.
Papers
More filters
Journal ArticleDOI
The dynamic mean-field density functional method and its application to the mesoscopic dynamics of quenched block copolymer melts
J.G E M Fraaije,B.A.C. van Vlimmeren,Natasha M. Maurits,M. Postma,O. A. Evers,C. Hoffmann,P. Altevogt,Gerhard Goldbeck-Wood +7 more
TL;DR: In this article, a new generalized time-dependent Ginzburg-Landau theory for the numerical calculation of polymer phase separation kinetics in 3D is discussed, where the thermodynamic forces are obtained by a mean-field density functional method, using a Gaussian chain as a molecular model.
Journal ArticleDOI
Dynamic density functional theory for microphase separation kinetics of block copolymer melts
TL;DR: In this article, the authors describe a numerical method for the calculation of collective diffusion relaxation mechanisms in quenched block copolymer melts, which entails the repeated calculation of two opposing fields, an external potential field U, conjugate to the density field ρ, and an energetic interaction field E. When the two fields are balanced U=E, they recover the self-consistent field solutions; when they are off balance, the spatial gradient of E-U is the thermodynamic force which drives the collective diffusion.
Journal ArticleDOI
Simulation of 3D Mesoscale Structure Formation in Concentrated Aqueous Solution of the Triblock Polymer Surfactants (Ethylene Oxide)13(Propylene Oxide)30(Ethylene Oxide)13 and (Propylene Oxide)19(Ethylene Oxide)33(Propylene Oxide)19. Application of Dynamic Mean-Field Density Functional Theory
TL;DR: In this paper, the authors simulate the microphase separation dynamics of aqueous solutions of the triblock polymer surfactants (ethylene oxide)13(propylene oxide)30(ethylene oxoxide)13 and (propylene oxide)19(methylene oxide),33(probylene oxoxide,propylene polyoxide,33(propane oxide)19) by a dynamic variant of mean-field density functional theory for Gaussian chains.
Journal ArticleDOI
Mesoscopic dynamics of copolymer melts: From density dynamics to external potential dynamics using nonlocal kinetic coupling
TL;DR: In this article, non-local kinetic coupling is applied to the dynamic mean-field density functional method, derived from generalized time-dependent Ginzburg-Landau theory, which was previously simulated using a local coupling approximation.
Journal ArticleDOI
Three-dimensional mesoscale dynamics of block copolymers under shear: The dynamic density-functional approach
TL;DR: In this paper, three-dimensional simulations of meso-phase formation in block copolymer melts under simple steady shear are performed in the framework of dynamic density functional theory.