[kolokvij-ijs] Predavanje, prof. dr. Heino Finkelmann, torek, 20. 6. 2006, ob 15.30, predavalnnica MPS

[Tamara Matevc]

Prof. Dr. Heino Finkelmann
Institut für Makromolekulare Chemie,
Albert-Ludwigs-Universität Freiburg, Germany

LIQUID CRYSTAL ELASTOMERS
Rubber elasticity is a unique feature of polymer networks or elastomers 
formed from long polymer chains connected to one another by crosslinkages. 
An implanting of rod-like mesogenic monomer units into the network chains 
can induce the liquid crystalline state of the elastomers. The interplay 
between network chain conformation and liquid crystalline phase creates 
material with remarkable properties.

Detailed investigations proved a direct coupling between chain conformation 
and anisotropic state of order of the liquid crystalline phase. Introducing 
an anisotropic chain conformation a priori by a suitable synthesis concept, 
networks can be obtained that are macroscopic uniformly ordered (liquid 
single crystal elastomers, LSCE).

Depending on the liquid crystalline phase structure, LSCE exhibit 
exceptional properties, e.g. nematic LSCE change their macroscopic 
dimensions when the state of order is modified by external stimuli. This 
effect can be applied to novel thermo- and opto-mechanical actuators.

VLJUDNO VABLJENI!


torek, 20. junij 2006, ob 15.30

Predavalnica Mednarodne podiplomske sole

Jozefa Stefana, soba N 250,

Jamova 39, Ljubljana



Tamara Matevc
tajnica Odseka za kompleksne snovi
Institut Jozef Stefan
Jamova 39
SI - 1000 Ljubljana
tel.: +386 1 477 3220
fax: +386 1 477 3998
e-mail: tamara.matevc at ijs.si
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