Self-Assembly of Lamellar- and Cylinder-Forming Diblock Copolymers in Nanoslits: Insight from Dissipative Particle Dynamics Simulations

0345238 - ÚCHP 2011 SK eng C - Conference Paper (international conference)
Petrus, P. - Lísal, Martin - Škvor, J.
Self-Assembly of Lamellar- and Cylinder-Forming Diblock Copolymers in Nanoslits: Insight from Dissipative Particle Dynamics Simulations.
Proceedings. Bratislava: Slovak University of Technology, 2010 - (Markoš, J.), s. 171. ISBN 978-80-227-3290-1.
[International Conference of Slovak Society of Chemical Engineering /37./. Tatranské Matliare (SK), 24.05.2010-28.05.2010]
Grant - others:UJEP(CZ) 5322415000801
Institutional research plan: CEZ:AV0Z40720504
Keywords : diblock copolymers * slit walls * interfacial interactions
Subject RIV: CF - Physical ; Theoretical Chemistry

In the bulk, diblock copolymers self-assemble into lamellar, cylindrical, gyroid and micellar nanostructures depending on the chemical incompatibility between the copolymer blocks and the block lengths ratio. However, in confinement interfacial interactions, symmetry breaking, structural frustration, and confinement-induced entropy loss play a determining role which lead to nanostructures that differ from those found in bulk. One key challenge in nanotechnology is to manipulate structures from the bottom-up, which could lead to novel materials of unique properties. In this study, the dissipative particle dynamics method is used to simulate the formation of nanostructures for lamellar- and cylinder-forming diblock copolymers between two planar surfaces. The formation of the diblock-copolymer nanostructures between the planar surfaces is investigated and characterized by varying the separation width and the strength of the interaction between the diblock copolymers and slit walls.
Permanent Link: http://hdl.handle.net/11104/0186554