Functional Polymer Materials

Since their inception, synthetic polymers have become indispensable in modern life and technology. These versatile materials are found in countless applications, making our daily lives more convenient and advanced.

In our group, we focus on synthesizing and studying a diverse range of polymers and their architectures. Our state-of-the-art synthesis lab allows us to produce polymers with various molecular weights and structures. One of our specialties is creating polyethylene glycol directly from ethylene oxide, available in different molecular weights and as building blocks for complex block copolymers.

We are also exploring self-healing polymer melts based on polybutadiene with hydrogen bonding groups, and investigating how ring-shaped polymers differ from linear ones in their dynamics and interactions. Additionally, we are developing polybutadiene-b-polyethylene glycol block copolymers combined with lithium salts for use in battery materials.

Beyond classical di- and tri-block copolymers, we synthesize and study alternating block copolymers. These consist of short hydrophilic and hydrophobic blocks, exhibiting remarkable phase behavior and potential as translocation agents through biological membranes.

Our research doesn’t stop at synthesis. We also characterize our products using techniques like NMR (Nuclear Magnetic Resonance) and GPC (Gel Permeation Chromatography). To study the structure of these materials on the nanometer scale, we use scattering techniques such as SANS, SAXS, and WAXS. For investigating their dynamics over timescales from nanoseconds to hours, we employ Pulse Field Gradient NMR, Quasielastic Neutron Scattering, Neutron Spin Echo, Dynamic Light Scattering, and Rheology. To complement these efforts we also employ molecular dynamics simulations with a focus on the battery materials.

Group Members

Publications

Constraining effects on polymer chain relaxation in crosslinked supramolecular dual networks
Feng Jasper , Allgaier Jürgen , Kruteva Margarita , Förster Stephan , Pyckhout-Hintzen Wim
Front. Soft Matter, 18 July 2023Sec. PolymersVolume 3 - 2023 |
https://doi.org/10.3389/frsfm.2023.1221803

Topology Matters: Conformation and Microscopic Dynamics of Ring Polymers
Margarita Kruteva, Jürgen Allgaier, Dieter Richter
Macromolecules 2023, 56, 18, 7203–7229

Controlled LCST Behavior and Structure Formation of Alternating Amphiphilic Copolymers in Water
Ekaterina Kostyurina, Judith U. De Mel, Alexandra Vasilyeva, Margarita Kruteva, Henrich Frielinghaus, Martin Dulle, Lester Barnsley, Stephan Förster, Gerald J. Schneider, Ralf Biehl, and Jürgen Allgaier
Macromolecules 2022 55 (5), 1552-1565DOI: 10.1021/acs.macromol.1c02324

Relaxation Dynamics and Ion Conduction of Poly(Ethylene Carbonate/Ethylene Oxide) Copolymer-Based Electrolytes
Yuya Doi, Jürgen Allgaier, Reiner Zorn, Stephan Förster, Takeshi Egami and Michael Ohl
The Journal of Physical Chemistry C, 2022 Volume 126, Issue 48

Last Modified: 01.10.2024