A5068637408- Supramolecular Self-Assembly in Materials
- Luminescence and Fluorescent Materials
- Polydiacetylene-based materials and applications
- Crystallization and Solubility Studies
- Lipid Membrane Structure and Behavior
- Photochromic and Fluorescence Chemistry
- X-ray Diffraction in Crystallography
- Microplastics and Plastic Pollution
- Perovskite Materials and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Chemical Thermodynamics and Molecular Structure
- Liquid Crystal Research Advancements
- Synthesis and Properties of Aromatic Compounds
- Crystallography and molecular interactions
- Synthesis and properties of polymers
- biodegradable polymer synthesis and properties
- Polymer composites and self-healing
- Covalent Organic Framework Applications
- Surfactants and Colloidal Systems
- Photochemistry and Electron Transfer Studies
- Epoxy Resin Curing Processes
École Polytechnique Fédérale de Lausanne
2017-2025
Bavarian Polymer Institute
2016-2019
University of Würzburg
2012-2019
Instituto de Ciencia de Materiales de Sevilla
2017
Institute of Macromolecular Chemistry
2017
Abstract New synthetic methodologies for the formation of block copolymers have revolutionized polymer science within last two decades. However, supramolecular composed alternating sequences larger segments has not been realized yet. Here we show by transmission electron microscopy (TEM), 2D NMR and optical spectroscopy that different perylene bisimide dyes bearing either a flat (A) or twisted (B) core self-assemble in water into with an sequence (A m BB) n . The highly defined ultralong...
Abstract Dye aggregates are becoming increasingly attractive for diverse applications, in particular as organic electronic and sensor materials. However, the growth processes of such from molecular to small assemblies up nanostructures is still not properly understood, limiting design materials’ functional properties. Here we elucidate supramolecular process an outstanding class dyes, perylene bisimides (PBIs), by transmission electron microscopy (TEM), cryogenic scanning (cryo‐SEM), atomic...
Abstract The specific hydrophobic effect involved in the self‐assembly of a bolaamphiphilic perylene bisimide (PBI) dye bearing oligoethylene glycol (OEG) chains has been identified. In pure water, is entropically driven and enthalpically disfavored, as explored by optical spectroscopy isothermal titration calorimetry studies. Besides strong π–π interactions between PBI units that are primarily enthalpic nature, major contribution to gain entropy release confined water molecules from...
Tuning of the temperature response perylene bisimide hydrogels exhibiting LCST behavior has been achieved by social self-assembly in water.
Entropically driven self-assembly of amphiphilic dyes in water, dictated by hydration as well orientation oligo-ethylene glycol chains is reported.
Abstract Perylenbisimide zählen zu den bedeutendsten funktionellen Farbstoffen mit vielfältigen Anwendungsmöglichkeiten. Aufgrund ihrer chemischen Robustheit, Photostabilität und herausragenden optischen elektronischen Eigenschaften wurden sie als Pigmentfarbstoffe, Fluoreszenzsonden sowie n‐Halbleiter in der organischen Elektronik Photovoltaik eingesetzt. Das ausgedehnte quadrupolare π‐System dieser Farbstoffklasse ermöglichte außerdem die Herstellung zahlreicher supramolekularer...
Biscarbazole-loaded perylene bisimide (PBI) dye micelles in water afforded a fluorescence resonance energy transfer (FRET)-based white-light emitting nano luminary system with biscarbazoles as donors and PBI acceptors.
The plastic waste crisis is among humanity's most urgent challenges. However, widespread adoption of sustainable plastics hindered by their often inadequate processing characteristics and performance. Here, we introduce a bio-inspired strategy for the modification representative high molar mass, biodegradable aliphatic polyester that helps overcome these limitations remains effective at masses far greater than entanglement mass. We use co-assembly oligopeptide-based polymer end groups low...
Abstract Dye aggregates are becoming increasingly attractive for diverse applications, in particular as organic electronic and sensor materials. However, the growth processes of such from molecular to small assemblies up nanostructures is still not properly understood, limiting design materials’ functional properties. Here we elucidate supramolecular process an outstanding class dyes, perylene bisimides (PBIs), by transmission electron microscopy (TEM), cryogenic scanning (cryo‐SEM), atomic...
Abstract The specific hydrophobic effect involved in the self‐assembly of a bolaamphiphilic perylene bisimide (PBI) dye bearing oligoethylene glycol (OEG) chains has been identified. In pure water, is entropically driven and enthalpically disfavored, as explored by optical spectroscopy isothermal titration calorimetry studies. Besides strong π–π interactions between PBI units that are primarily enthalpic nature, major contribution to gain entropy release confined water molecules from...
Extended π-conjugated segments such as benzofurobenzofuran can be included into polyamides with high glass transition temperatures.
Photoinduced charge separation in supramolecular aggregates of π-conjugated molecules is a fundamental photophysical process and key criterion for the development advanced organic electronics materials. Herein, self-assembly low-band-gap chromophores into helical one-dimensional aggregates, due to intermolecular hydrogen bonding, reported. Chromophores confined these polymers show strong excitonic coupling interactions give rise charge-separated states with unusually long lifetimes several...
Irbesartan exists as tautomers A and B in diverse solvent mixtures. Homogeneous nucleation gives (pseudo)polymorphs with layer-wise or columnar growth. The desmotropes present different habits, thermal expansions, stabilities phase transitions.
1D helical nanowires from “supramolecular low-bandgap polymers” facilitate the formation of photocharges induced with a low-power white-light source. The in this nanoscopic confinement exhibit extraordinarily long lifetimes order many hours, which gives rise to delocalized and mobile charges at high concentrations close metal insulator threshold. These systems show macroscopic photoconductivity charge transport properties similar strongly doped organic semiconductors, thus provide valuable...