BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Polymer Opals\; Generating Bulk-Scale Packing Ordering in Nanomate
 rials Using Shear-Assembly in Viscoelastic Media - Christopher Finlayson (
 Aberystwyth University)
DTSTART:20230824T080000Z
DTEND:20230824T083000Z
UID:TALK202639@talks.cam.ac.uk
DESCRIPTION:The shear-induced ordering of composite polymer nanoparticles 
 is a relatively new paradigm in the generation of nano-ordered materials o
 ver large areas and volumes [1]. The hard-core/soft-shell design of these 
 sub-micron spherical particles produces quasi-solid &ldquo\;gum-like&rdquo
 \; media\, with a viscoelastic ensemble response to applied shear\, in mar
 ked contrast to the behaviour seen in colloidal and granular systems [2]. 
 Applying an oscillatory shearing method produces monotonic crystallization
  processes [3] to give elastomeric photonic crystals (or &ldquo\;polymer o
 pals&rdquo\;) with characteristic close packing geometries\, and intense t
 uneable structural colour [4].\nDeveloping a controllable &ldquo\;roll-to-
 roll&rdquo\; process known as BIOS\, or Bending Induced Oscillatory Shear 
 [5]\, and the interchangeable nature of the base composite materials\, ope
 ns potentially transformative possibilities for mass manufacture of advanc
 ed optical materials\, photonics\, and plasmonics.\n&nbsp\;\n[1] C.E. Finl
 ayson and J.J. Baumberg\, Polymer International 62\, pp.1403&ndash\;1407 (
 2013)\n[2] D.R.E. Snoswell et al.\, Phys. Rev. E 92\, 052315 (2015)\n[3] C
 .E. Finlayson\, G. Rosetta\, and J.J. Baumberg\, Materials 14\, 5298 (2021
 )\n[4] G. Rosetta et al.\, Optics Express 28\, pp.36219 (2020)\n[5] Q. Zha
 o et al.\, Nature Communications 7\, 11661 (2016)
LOCATION:External
END:VEVENT
END:VCALENDAR