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
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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

Thermal properties of vortices on curved surfaces

Autor: José Lorenzana, Daniel A. Vega, Leopoldo Raimundo Gomez, Nicolás García

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Physical review. E, Statistical, nonlinear and soft matter physics (Online) 97 (2018). doi:10.1103/PhysRevE.97.012117
info:cnr-pdr/source/autori:Gomez L.R.; Garcia N.A.; Vega D.A.; Lorenzana J./titolo:Thermal properties of vortices on curved surfaces/doi:10.1103%2FPhysRevE.97.012117/rivista:Physical review. E, Statistical, nonlinear and soft matter physics (Online)/anno:2018/pagina_da:/pagina_a:/intervallo_pagine:/volume:97

We use Monte Carlo simulations to study the finite temperature behavior of vortices in the XY- model for tangent vector order on curved backgrounds. Contrary to naive expectations, we show that the underlying geometry does not affect the proliferatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::143ead82131bca899984ba95fd4228ee
https://link.aps.org/doi/10.1103/PhysRevE.97.012117

Synthesis and physicochemical characterization of a well-defined poly(butadiene 1,3)-block-poly(dimethylsiloxane) copolymer

Autor: Andrés Eduardo Ciolino, Leopoldo Raimundo Gomez, Enrique M. Vallés, Marcelo A. Villar, Daniel A. Vega

Publikováno v: Polymer. 49:5191-5194

For the first time, order–order and order–disorder transitions were detected and characterized in a model diblock copolymer of poly(butadiene-1,3) and poly(dimethylsiloxane) (PB-b-PDMS). This model PB-b-PDMS copolymer was synthesized by the seque

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eaa627414cedbda896ad859e159b646e
https://doi.org/10.1016/j.polymer.2008.09.058

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

Viscoelastic response of linear defects trapped in polymer networks

Autor: Daniel A. Vega, Leopoldo Raimundo Gomez, Enrique M. Vallés, Leandro E. Roth, Jorge Aníbal Ressia, Marcelo A. Villar, Diana Carolina Agudelo

We analyze the dynamic response of end-linked poly(dimethylsiloxane) networks containing entangled unattached guest linear polymers. Upon increasing the content of unattached guest polymers there is an increasing dissipation and a reduction in the ne

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b23f369252d56938c4b388ab0295ec1
http://www.sciencedirect.com/science/article/pii/S0014305714004777