Výsledky vyhledávání - "Aldo Daniel Pezzutti"

Crumpling and Buckling in Membranes with Hexagonal Phase

Autor: Aldo Daniel Pezzutti, Gaston Araujo

Publikováno v: WSEAS TRANSACTIONS ON APPLIED AND THEORETICAL MECHANICS. 15:98-107

We study the dynamics of a copolymer membrane diblock in hexagonal phase. We call diblock copolymer membrane a copolymer film with thickness of the order of the size of the domains and that it presents the possibility of deforming freely. In a flat s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15898f15882238a85a52f2d645e5fb58
https://doi.org/10.37394/232011.2020.15.12

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Buckling Dynamics in Crystalline Membranes

Autor: Hugo Hernández, Aldo Daniel Pezzutti

Publikováno v: Journal of Physics: Conference Series. 1603:012003

We study the dynamics of a flexible crystalline membrane with hexagonal pattern. The relaxational dynamics towards equilibrium is described through a Brazovskii-Helfrich-Canham Hamiltonian model. The coupled dynamics between the hexagonal structure a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46d276a6f76344e9d2997fec8ef435e7
https://doi.org/10.1088/1742-6596/1603/1/012003

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Confined Copolymer Structures

Autor: Aldo Daniel Pezzutti, Hugo Hernández

Publikováno v: Journal of Physics: Conference Series. 1603:012002

Bulk morphologies of diblock copolymers have been extensively studied in literature both experimentally and theoretically. Depending on the composition of the blocks it is comprised of, the bulk structures correspond to lamellae, gyroids, cylinder he

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96ab8c7df2a01e6fee61baad708c8661
https://doi.org/10.1088/1742-6596/1603/1/012002

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Curvature as a Guiding Field for Patterns in Thin Block Copolymer Films

Autor: Aldo Daniel Pezzutti, Giang Thi Vu, Richard A. Register, Friederike Schmid, Leopoldo Raimundo Gomez, Anabella Angela Abate, Daniel A. Vega

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

Experimental data on thin films of cylinder-forming block copolymers (BC)—free-standing BCmembranes as well as supported BC films—strongly suggest that the local orientation of the BC patternsis coupled to the geometry in which the patterns are e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05409a2cb193f5d993972cbf0a161349
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.087801

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Shear-aligned block copolymer monolayers as seeds to control the orientational order in cylinder-forming block copolymer thin films

Autor: Aldo Daniel Pezzutti, Friederike Schmid, Daniel A. Vega, Anabella Angela Abate, Raleigh L. Davis, Nicolás García, Richard A. Register, Giang Thi Vu

We study the dynamics of coarsening of a cylinder-forming block copolymer thin film deposited on a prepatterned substrate made of a well-ordered block copolymer monolayer. During thermal annealing the shear-aligned bottom layer drives extinction of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a3423f1c73e6e29dd0ca4e4bf762311
https://pubs.acs.org/doi/abs/10.1021/acs.macromol.6b00816

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Wrinkles and splay conspire to give positive disclinations negative curvature

Autor: Aldo Daniel Pezzutti, Nicolás García, Richard A. Register, Daniel A. Vega, Paul Chaikin, Elisabetta A. Matsumoto

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

Recently, there has been renewed interest in the coupling between geometry and topological defects in crystalline and striped systems. Standard lore dictates that positive disclinations are associated with positive Gaussian curvature, whereas negativ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34d5f5d6e15d5426fc64045526553001
https://europepmc.org/articles/PMC4611641/

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Smectic block copolymer thin films on corrugated substrates

Autor: Aldo Daniel Pezzutti, Daniel A. Vega, Leopoldo Raimundo Gomez

Publikováno v: Soft matter. 11(14)

In this work we study equilibrium and non-equilibrium structures of smectic block copolymer thin films deposited on a topographically patterned substrate. A Brazovskii free energy model is employed to analyze the coupling between the smectic texture

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4eb04c5aa5d5caa8696eabdd50f619d
https://pubmed.ncbi.nlm.nih.gov/25710883

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Defect formation and coarsening in hexagonal 2D curved crystals

Autor: Leopoldo Raimundo Gomez, Nicolás García, Aldo Daniel Pezzutti, Richard A. Register, Daniel A. Vega

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

In this work we study the processes of defect formation and coarsening of two-dimensional (2D) curved crystal structures. These processes are found to strongly deviate from their counterparts in flat systems. In curved backgrounds the process of defe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::143412353ff92db6726d317b8a483d17
https://pubs.rsc.org/en/content/articlelanding/2015/sm/c4sm02234c#!divAbstract

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Defect dynamics in crystalline buckled membranes

Autor: Aldo Daniel Pezzutti, Daniel A. Vega

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

We study the dynamics of defect annihilation in flexible crystalline membranes suffering a symmetry-breaking phase transition. The kinetic process leading the system toward equilibrium is described through a Brazovskii-Helfrich-Canham Hamiltonian. In

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fac63fc586c705462d64b416731d32a3
https://doi.org/10.1103/physreve.84.011123

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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

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

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 cyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f428dabb878c1a777e771c150c01beeb
https://doi.org/10.1039/c3sm51904j

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