AMADEus Seminar - Friday 5 October 2012, 4:00 pm - Location: ENSCBP, Amphi 2
Prof. Hirokazu Hasegawa, Advanced Functional Polymer Laboratory - Department of Polymer Chemistry - Graduate School of Engineering - Kyoto University - Nishikyo-ku, Kyoto 615-8150 Japan
"Complex Microdomain Morphology of Block Copolymer Systems Studied by 3D TEM Tomography"
Dr. Guillaume Fleury, Assistant Professor - Laboratoire de Chimie des Polymères Organiques - University Bordeaux 1
"Nanoscale Block Copolymer Ordering Induced by Visible Interferometric Micro-patterning: a Route towards Large Scale Block Copolymer 2D Crystals"
Prof. Hirokazu Hasegawa's Resume:
Block copolymers self-assembles to form extremely regular phase-separated structures in nanoscale. Such structures might lead to a innovative materials or techniques if one can give appropriate function to each microdomain. In addition to classical morphologies such as spheres, cylinders and lamellae, two- and tree-dimensional network morphologies have been observed. The networks are not only useful in terms of application but also interesting from the viewpoint of geometry. However, the structure analyses of networks are not easy because of their complex geometrical shapes. So, we employed transmission electron microscope (TEM) tomography to observe their 3D structures. This technique is also very useful to study the process of transition from one morphology to another. In this talk, various kinds of network microdomain structures and grain boundary structures found in various block copolymer systems are introduced as well as the brief backgrounds of the systems.
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Guillaume Fleury received a Ph.D. in Materials Science (under the guidance of Pr. Georges Hadziioannou) at the University Louis Pasteur of Strasbourg in 2005 working on a new topological polymeric material. Following his Ph.D he completed a postdoctoral fellowship at the University of Minnesota in the Chemical Engineering and Materials Science department under the supervision of Pr. Frank Bates working on multiblock copolymers and their self-assembly. He was recruited in September 2009 in the laboratory of organic polymer chemistry (LCPO, UMR5629) at the University of Bordeaux 1, as an Assistan Professor in the group of Pr. Georges Hadziioannou for his expertise in the characterization of complex polymer systems.
Guillaume Fleury has published 10 peer-reviewed articles.