Conférence de chimie avec le professeur Chinedum Osuji de Yale University

- - Événements

Titre: ''Single crystals and bespoke textures< />in self-assembled soft materials''


Endroit : Pavillon Roger-Gaudry, salle S-142


Heure : 11:00 AM


Hôte : Professeur Chinedum Osuji


Résumé : “Controlling structure and thereby manipulating the use< />properties of condensed matter is a central concern in materials< />science. A striking disparity exists in our ability to enact such< />structural control in self-assembled soft materials, relative to hard< />condensed matter systems. In this talk we examine strategies for< />directing self-assembly in nanostructured soft materials to create< />single crystals and bespoke textures. Our work elucidates physical< />processes that are relevant for such directed self-assembly, in< />part by leveraging in situ scattering tools, with an overall goal of< />exploiting fundamental understanding to create useful materials< />or devices. In particular, we consider the use of magnetic fields and< />confinement effects for directed self-assembly of soft mesophases< />of block copolymers and discotic liquid crystals. The ability to< />produce highly ordered functional materials over macroscopic< />length scales is demonstrated. We explore the role of alignment< />and connectivity in creating materials with highly anisotropic ion< />transport, and in creating highly selective nanofiltration memanes< />with uniformly aligned nanopores produced by molecular selfassembly.< />Application of orthogonal fields, and field processing< />across sequential phase transitions enables a novel realization of< />macroscopic single crystals of self-assembled mesophases with< />precisely specified texture. Recent progress on low field (sub-1 T)< />alignment and the associated potential to develop bespoke textures< />in block copolymers using local field screening are presented.”



Selected references


    1. 'Chinedum Osuji Bio, Stats, and Results | Olympics at'. Retrieved 2013-02-16.


    1. Chinedum Osuji (2012-02-10). 'Osuji Lab - Polymer Physics, Complex Fluids and Soft Materials Science: Directed Self Assembly, Supramolecular Polymers, Colloidal Rheology, Microfluidics'. Retrieved 2013-02-16.


    1. 'Chinedum Osuji - Yale School of Engineering & Applied Science | Yale School of Engineering & Applied Science'. 2012-11-30. Retrieved 2013-02-16.


    1. 'Chinedum Osuji Lab – Just another WordPress site'. Retrieved 2018-07-14.



Courriel :


Numéro de téléphone : 514-340-5174


Informations supplémentaires

Annonce PDF de la conférence



Détails de l'événement

Date de l'évènement : mercredi 5 décembre 2018 11:00
Emplacement : Université de Montréal - Pavillon Roger-Gaudry
Prix : Gratuit $

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