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SUMMARY:Elastic Microphase Separation Produces Bicontinuous Materials
DTSTART:20231211T140000
DTEND:20231211T150000
DTSTAMP:20260605T154216Z
UID:df90546563d3da765eb0f92776c12f716e01526ae358efa21a837a89
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Carla Fernández Rico\, ETH Zürich\, Switzerland\nPhase s
 eparation is a fascinating physical process that is not only responsible f
 or the internal organization of living cells but also a promising tool for
  structuring materials. The central challenge in making meso-structured ma
 terials via phase separation is the lack of structural control at length s
 cales beyond the macromolecular scale.\n\nIn this talk\, I will introduce 
 Elastic MicroPhase Separation (EMPS) as a route to create highly correlate
 d and bicontinuous structures in the scale of hundreds of nanometers (see 
 Fig.1). The essential idea of our approach is simple\; we counter the ther
 modynamic forces that drive phase separation with elastic stresses in the 
 host matrix. In this way\, we can tune the size and morphology of the stru
 ctures by changing the mechanical properties of the matrix.  Analysis of 
 the microstructure\, phase equilibria\, and kinetics suggests that these s
 ystems emerge through a unique thermodynamic pathway\, featuring aspects o
 f both nucleation and growth and spinodal decomposition. We demonstrate th
 e potential our approach by toughening polymeric materials\, and making bi
 -continuous structures with controlled structural and anisotropic gradient
 s.\n\n                                  \
 n\nFigure 1: Elastic microphase separation produces bicontinuous structure
 s. (A) Schematic of the synthesis process. (B\,C) Confocal 2D and 3D snaps
 hots of the bicontinuous structure obtained after phase separation.\n 
LOCATION:CH G1 495 https://plan.epfl.ch/?room==CH%20G1%20495 https://epfl.
 zoom.us/j/65644214393
STATUS:CONFIRMED
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