BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:IMX Talks - Phase Separation: A Versatile Tool for Designing Dynam
 ic Polymer Networks
DTSTART:20260826T140000
DTEND:20260826T150000
DTSTAMP:20261020T214023Z
UID:e42b8352bf8f45ae021e826ea5dc9b0cdc216a86ee85b3c56d83fd3c
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Renaud Nicolaÿ\, ESPCI\, Paris\nVitrimers are chemical
 ly crosslinked networks that can rearrange their topology without decreasi
 ng their crosslinking density thanks to exchangeable links present in the 
 network. As a result\, vitrimers can be reshaped and recycled at will\, wh
 ile displaying the superior properties of crosslinked polymers at service 
 temperature. Very promising materials to create a circular economy of plas
 tics and polymeric materials\, vitrimers still display limitations that im
 pact their transition towards industry\, such as synthetic cost\, high vis
 cosity even at elevated temperatures\, due to the Arrhenian temperature de
 pendence of the melt viscosity\, or moderate creep resistance at working t
 emperatures in the case of low Tg materials.\nAlthough many strategies hav
 e been reported to address these issues\, it remains challenging to overco
 me a key tradeoff between improving the processability or the mechanical p
 erformance of vitrimers.\nThis lecture will present strategies that use ph
 ase separation to improve the processability and mechanical performance of
  dynamic polymer networks\,¹⁻⁴ to upcycle polyolefin blends\,5 or to 
 create self-healing\, injectable hydrogels.⁶\n\nReferences\n1. Röttger\
 , M.\; Domenech\, T.\; van der Weegen\, R.\; Breuillac\, A.\; Nicolaÿ\, R
 .\; Leibler\, L.\, High-performance vitrimers from commodity thermoplastic
 s through dioxaborolane metathesis. Science 2017\, 356\, 62-65.\n2. Formon
 \, G. J. M.\; Storch\, S.\; Delplanque\, A. Y. G.\; Bresson\, B.\; Van Zee
 \, N. J.\; Nicolay\, R.\, Overcoming the Tradeoff Between Processability a
 nd Mechanical Performance of Elastomeric Vitrimers. Adv. Funct. Mater. 202
 3\, 33\, 2306065.\n3. Quinteros-Sedano\, A.\; Bresson\, B.\; Van Zee\, N. 
 J.\; Nicolay\, R.\, Improving the Thermomechanical Properties and Processa
 bility of Elastomeric Vitrimers Using Thermoreversible Organic Nanofillers
 . ACS Mater. Lett. 2024\, 6\, 877-884.\n4. Formon\, G. J. M.\; Jayaratnam\
 , J.\; Guibert\, C.\; Van Zee\, N. J.\; Nicolay\, R.\, Cross-Linking Vitri
 mers after Melt Processing Using Supramolecularly Masked Dynamic Cross-Lin
 kers. Macromolecules 2024\, 57\, 8277-8286.\n5. Vialon\, T.\; Sun\, H.\; F
 ormon\, G. J. M.\; Galanopoulo\, P.\; Guibert\, C.\; Averseng\, F.\; Rager
 \, M.-N.\; Percot\, A.\; Guillaneuf\, Y.\; Van Zee\, N. J.\; Nicolay\, R.\
 , Upcycling Polyolefin Blends into High-Performance Materials by Exploitin
 g Azidotriazine Chemistry Using Reactive Extrusion. J. Am. Chem. Soc. 2024
 \, 146\, 2673-2684.\n6. Sun\, H.\; Gode\, I.\; Bonnard\, M.\; Liautard\, V
 .\; Pomes-Hadda\, M.\; Aime\, S.\; Chabaud\, L.\; Edera\, P.\; Guerinot\, 
 A.\; Pucheault\, M.\; Nicolay\, R.\, Self-Healing and Creep-Resistant Inje
 ctable Hydrogel from Aminoborinate Chemistry and Phase Separation. ACS Mat
 er. Lett. 2025\, 7\, 2534-2540.\n\nBio: \nRenaud Nicolaÿ is a Professor 
 of Synthetic Chemistry and Director of the Laboratory of Molecular\, Macro
 molecular\, and Materials Chemistry (C3M) at ESPCI Paris. He holds a dual 
 PhD in polymer chemsitry from Sorbonne University (formerly Université Pi
 erre et Marie Curie\, 2008) and Carnegie Mellon University (2009)\, comple
 ted under the supervision of Professors P. Hémery and K. Matyjaszewski. A
 fter conducting postdoctoral research in the laboratory of Professor E. W.
  Meijer at Eindhoven University of Technology on single-chain nanoparticle
 s\, he joined the laboratory of Ludwik Leibler at ESPCI Paris as an Assist
 ant Professor in 2010.\nHis research group bridges fundamental science and
  industrial applications\, with a focus on developing innovative synthetic
  methodologies\, designing stimuli-responsive materials and formulations\,
  engineering high-performance\, recyclable materials. Two key research are
 as in his team include dynamic polymer networks — such as vitrimers — 
 and hierarchically structured materials.\n 
LOCATION:ME B3 31 https://plan.epfl.ch/?room==ME%20B3%2031
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR