Coupling between mean curvature and textures in block copolymer thin films deposited on curved substrates
| Autor: | Leopoldo Raimundo Gomez, Aldo Daniel Pezzutti, Paul Chaikin, Richard A. Register, Daniel A. Vega, Flavio Pardo |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Block copolymer Thermodynamic equilibrium Ciencias Físicas Físico-Química Ciencia de los Polímeros Electroquímica INGENIERÍAS Y TECNOLOGÍAS Substrate (electronics) purl.org/becyt/ford/1 [https] chemistry.chemical_compound Ingeniería de los Materiales purl.org/becyt/ford/1.4 [https] Perpendicular Copolymer Nanotechnology Coupling (piping) Physics::Chemical Physics Thin film Composite material Mean curvature Ciencias Químicas purl.org/becyt/ford/1.3 [https] General Chemistry Condensed Matter Physics Condensed Matter::Soft Condensed Matter purl.org/becyt/ford/2 [https] chemistry Polystyrene purl.org/becyt/ford/2.5 [https] CIENCIAS NATURALES Y EXACTAS Física de los Materiales Condensados |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| ISSN: | 1744-6848 1744-683X |
| DOI: | 10.1039/c3sm51904j |
| Popis: | We study the dynamics of coarsening in a cylinder-forming polystyrene-block-poly(ethylene-alt-propylene) block copolymer thin film deposited on a topographically patterned substrate. Thermal annealing leads to highly ordered arrays of polystyrene cylinders embedded in the poly(ethylene-alt-propylene) matrix, lying in-plane and oriented perpendicular to the trenches of the substrate. We show that this configuration corresponds to an equilibrium state. The coupling between the block copolymer morphology and the mean curvature of the substrate is dictated by the out-of-plane deformations of the block copolymer structure. Thus, with appropriate control over the substrate features, it should be possible to obtain novel structures with controlled orientation. Fil: Vega, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Instituto de Física del Sur; Argentina; Fil: Gomez, Leopoldo Raimundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Instituto de Física del Sur; Argentina; Fil: Pezzutti, Aldo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahía Blanca. Instituto de Física del Sur; Argentina; Fil: Pardo, Flavio. Lucent-Alcatel Bell Laboratories; Estados Unidos de América; Fil: Chaikin, Paul M.. New York University. Department of Physics; Estados Unidos de América; New York University. Center for Soft Condensed Matter Research; Estados Unidos de América; Fil: Register, Richard A.. Princeton University. Princeton Institute for the Science and Technology of Materials; Estados Unidos de América; Princeton University. Department of Chemical and Biological Engineering; Estados Unidos de América |
| Databáze: | OpenAIRE |
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