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Supramolecular Polymers

KeyLab coordinator:

Prof. Dr. Frank Würthner
Phone: +49 (0)931 / 31 85340
E-mail: wuerthner@uni-wuerzburg.de
Homepage: Organic Materials and Nanosystems Chemistry

KeyLab scientists:

Prof. Dr. Matthias Lehmann
E-mail: matthias.lehmann@uni-wuerzburg.de

Priv.-Doz. Dr. Florian Beuerle
E-mail: florian.beuerle@uni-wuerzburg.de

Dr. Agnieszka Nowak-Król
E-mail: agnieszka.nowak-krol@uni-wuerzburg.de


Small- and wide-angle X-ray scattering diffractometer NanoSTAR U (Bruker AXS GmbH) for the investigation of liquid, viscous as well as solid state samples with a resolution of 3-dimensional structures in the range of 1 to 100 nm. Equipped with a Vantec2000 detector and a microfocus copper anode.

MultiMode VIII (Scanning probe microscope)

High resolution atomic force and scanning tunnel microscope MultiMode VIII (Bruker Nano Surfaces Division) with modular AFM and STM heads for the investigation of the surface topography as well as of the surface potential of monomolecular structured surfaces up to complex volume materials.

Solver NEXT (Scanning probe microscope)

Atomic force and scanning tunnel microscope Solver NEXT (NT-MDT) with positionally accurate automatically exchangeable AFM and STM heads with a scan area of 100 x 100 x 10 μm3 as well as motorized probe station (5 x 5 mm2) for the rapid determination of the surface topography as well as the surface potential.

MicroCalTM VP-iTC (Isothermal titration calorimetry)

Isothermal titration calorimeter MicroCalTM VP-iTC (GE Healthcare) for the determination of binding affinities in solution (102-109 M-1) and the related thermodynamic values (Gibbs energy, binding enthalpy and entropy) by measurements of the heat flow.

Q1000 (Differential scanning calorimetry)

Differential scanning calorimeter Q1000 (TA Instruments) for the investigation of phase transitions and melting behavior of low molecular substances and polymers in a temperature range of -90°C to 550°C.

micrOTOF-Q-III (ESI-TOF mass spectrometer)

Electrospray quadrupole time-of-flight mass spectrometer micrOTOF-Q-III (Bruker Daltonik GmbH) for the measurement of exact masses (≤ 2 ppm RMS) and isotope patterns (mass resolution ≥ 20.000) in the MS as well as MS/MS mode. Contains an Apollo II ESI-Ion funnel source and hyperbolic high-performance quadrupole.

V-770 (UV/Vis/NIR spectrometer)

UV/Vis/NIR spectrometer V-770 (JASCO Labor- und Datentechnik GmbH Deutschland, wavelength range: 170-2700 nm) equipped with a Peltier-cooled 6-position cell changer, temperature-controlled cylindrical cuvette holder as well as integration sphere for the investigation of thin films in transmission or reflection mode.

Supramolecular polymers are a new class of polymers, based on the self-organization of low molecular substances. The self-organization processes are driven by non-covalent interactions like hydrogen bonds, metal coordination or π−π interactions. In contrast, conventional polymers consist of macromolecules formed by covalent interactions between monomer units. One important characteristic of supramolecular polymers is their ability for adaption: The relatively weak nature of the non-covalent interactions allows for sensitive changes in the material’s structure and thus properties upon external stimuli. These so-called smart materials are interesting candidates for novel applications in different technological areas, for example as sensor systems or in medical applications. The University of Würzburg has played an important role in the development of these exciting materials within the last decade. Previous works include fundamental studies on the mechanistic characteristics of supramolecular polymerization processes as well as developments in the fields of liquid crystals, sensor systems and electronics .

The KeyLab Supramolecular Polymers aims to better understand the fundamental principles related to the fabrication and properties of this interesting class of polymeric materials. In cooperation with other KeyLabs, potential fields of applications are investigated.

KeyLab coordinator:

Prof. Dr. Frank Würthner

KeyLab scientists:

Prof. Dr. Matthias Lehmann, Priv.-Doz. Dr. Florian Beuerle, Dr. Agnieszka Nowak-Król

KeyLab flyer: