Martin Luther University Halle-Wittenberg

Marktplatz Halle

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Research Areas

Block copolymers and blend systems

Block copolymers are macromolecules,  consisting of two or more covalently joined homopolymer blocks. This  special molecular architecture und the chemical incompatibility lead in  most cases to a microphase separation and, hence, the development of  nano-scaled morphologies. By variation of the molecular  architecture and by direction of the morphology development, e.g.  via processing or blending, the mechanical behaviour can be tailored  over a wide range. In our group, the research focus lies in the  development of the structure-property-reationships between the  molecular architecture, the morphology and their mechanical and  fracture-mechanical behaviour of styrene-butadiene based block  copolymers with statistical copolymer middleblocks.

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Because of their many-sided geomeries,  outstanding chemical and physical properties, nanoparticles are particularly suitable fillers for polymeric composites. The properties  of the composite can be tailored via the selected the single components,  the filler concentration as well as processing technology and  processing parameters.

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Superelastic polymers

Superelastic polymers are thermoplastic elastomers (TPEs) based on novel molecular architectures. They are characterised by very high elongation at break (partly more than 1500%) with simultaneously very low residual strains. Further, they exhibit high deformation energies and excellent mechanical damping properties. Within this key topic, the relationship between  molecular structure, process parameters, the morphology and the  elastomeric material behaviour of super-elastic polymers are  investigated.

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