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Seminar “IRTG: Soft Matter Science “

Wann 24.11.2010
von 14:15 bis 15:00
Wo Hörsaal Makromolekulare Chemie, Stefan-Meier-Str. 31, Freiburg
Teilnehmer Open to University employees
Termin übernehmen vCal

Ioan Botiz
FRIAS, Freiburg


Processes of ordered structure formation in thin films and potential applications

We present an experimental study of structure formation in a polypeptide hetero-arm star block copolymer solution, obtained by swelling thin films in chloroform solvent vapor to variable poly(g-benzyl-L-glutamate) concentrations. Direct observation by optical microscopy allowed us to follow in real time nucleation and growth of ordered three-dimensional structures of ellipsoidal shape. The influence of various parameters like type of solvent, polymer concentration, environmental conditions, etc. on ordering process will be emphasized along with a possible model for molecular organization. At the end, applications of ordering processes in organic photovoltaics will be emphasized.