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SUMMARY:From Hierarchical Self-Organization towards Polymer Systems with F
 unctional and Active Properties
DTSTART:20131014T131500
DTSTAMP:20260408T060400Z
UID:d9a2b45c5deae884497a7573f56d9614a110e7173efcd977f14fec69
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Martin Möller\, RWTH Aachen\, Germany\nBio: Dr. rer. na
 t. Martin Möller has been University Professor of Textile Chemistry and M
 acromolecular Chemistry at the RWTH Aachen Faculty of Mathematics\, Comput
 er Science\, and Natural Sciences since April 2002.\nStarting in March 200
 3\, he will be the Director of the German Wool Research Institute\, DWI\, 
 at RWTH Aachen.\nPolymer science focuses more than ever on mastering incre
 asingly complex molecular structures and supramolecular assemblies for adv
 an-ced functionalities such as nanoprogrammed structure formation\, molecu
 lar recognition\, meta- and multistability\, adaptive structures\, shape m
 emory properties\, self-healing properties\, molecular motility\, molecula
 r energy conversion systems and replication.\nThe work presented here focu
 ses on the spontaneous formation of functional monolayers with a high char
 ge carrier mobility and a high tolerance on the substrate structure. These
  polymers can also form single and multilayer vesicles and hierarchically 
 ordered ultrathin films with well defined lateral nanopattern and a thickn
 ess corresponding to that of lipids. With a focus on switchability\, we wi
 ll present examples on switchable adhesion properties\, switchable stabili
 sation of emulsions based on the variation of pH\, temperature and solvent
 s. Moreover we will present examples where small objects can be switched b
 etween different states by NIR-light. This way it has been possible to des
 ign a light driven microfluidic pump. For this purposes we take advantage 
 of the fact that hydrogels and microgels respond critically to the change 
 of pH\, temperature and solvent\, but also that the state of ordering of l
 iquid crystal can be switched and used to achieve actuation. A key aspect 
 of the light-driven molecular devices is that beyond photoisomerisation\, 
 it has been possible to effect fast and highly localized temperature jumps
  in a material by incorporation of suitable nanoscopic IR-antennae.
LOCATION:MXF 1 https://plan.epfl.ch/?room==MXF%201
STATUS:CONFIRMED
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