Adlerstraße 32, 47798 Krefeld, Building S, Room: S E21

AdministrationILOC, Adlerstraße 32, 47798 Krefeld, Building S, Room: S E21

Paint area ILOC, Adlerstraße 1, 47798 Krefeld, Building M

Q. Wang, S. Popov, A. Feilen, V. Strehmel, B. Strehmel, "Rational Selection of Cyanines to Generate Conjugate Acid and Free Radicals for Photopolymerization upon Exposure at 860 nm," Angewandte Chemie 2021, 133, 27059-27070, https://doi.org/10.1002/ange.202108713,"Rational Selection of Cyanines to Generate Conjugate Acid and Free Radicals for Photopolymerization upon Exposure at 860 nm," Angewandte Chemie International Edition 2021, 60, 26855-26865. doi. org/10.1002/anie.202108713

C. Kütahya, Y. Zhai, S. Li, S. Liu, J. Li, V. Strehmel, Z. Chen, B. Strehmel, "Distinct Sustainable Carbon Nanodots for Free Radical Photopolymerization, Photo-ATRP and Photo-CuACC Chemistry," Angewandte Chemie 2021, 133, 11078-11087, https://doi.org/10.1002/ange.202015677,"Distinct Sustainable Carbon Nanodots Enable Free Radical Photopolymerization, Photo-ATRP and Photo-CuAAC Chemistry," Angewandte Chemie International Edition 2021, 60, 10983-10991. doi. org/10.1002/anie.202015677

Y. Pang, A. Shiraishi, D. Keil, S. Popov, V. Strehmel, H. Jiao, J. S. Gutmann, Y. Zou, B. Strehmel, "NIR-sensitized cationic and hybrid radical/cationic polymerization and crosslinking," Angewandte Chemie 2021, 133, 1486 - 1495. https://doi.org/10.1002/ange.202010746" NIR-Sensitized Cationic and Hybrid Radical/Cationic Polymerization and Crosslinking," Angewandte Chemie International Edition 2021, 60, 1465-1473. doi. org/10.1002/anie.202010746

C. Kütahya, P. Wang, S. Li, S. Liu, J. Li, Z. Chen, B. Strehmel, "Carbon nanodots as photocatalysts for free radical and ATRP-based radical photopolymerization with blue LEDs," Angewandte Chemie 2020, 132, 3192-3197. https://doi.org/10.1002/ange.201912343 "Carbon Dots as a Promising Green Photocatalyst for Free Radical and ATRP-Based Radical Photopolymerization with Blue LEDs," Angewandte Chemie International Edition 2020, 59, 3166-3171. https://doi.org/10.1002/anie.201912343.

B. Lewandowski, M. Ulbricht, G. Krekel, "An automated image analyzing routine for estimation of equivalent diameter in high-speed image sequences with high accuracy and its validation," Exp. Therm. Fluid. Sci., 2018, 98, 158-169 (link to paper: https: //www.sciencedirect.com/science/article/pii/S089417771830918X?via%3Dihub).

B. Luczak, R. Müller, M. Ulbricht, H. J. Schultz,"Experimental analysis of the flow conditions in spiral jet mills via non-invasive optical methods," Powder Technology 325 (2), 2018, 161-166.

M. A. Harris, M. F. Heres, J. Coote, A. Wenda, V. Strehmel, G. E. Stein, J.Sangoro,"Ion Transport and Interfacial Dynamics in Disordered Block Copolymers of Ammonium-Based Polymerized Ionic Liquids," Macromolecules, 2018, 51(9), 3477-3486.

F. Filarsky, C. Schmuck, H. J. Schultz, "Development of a biogas production and purification process using promoted gas hydrate formation - A feasibility study," Chemical Engineering Research and Design 2018, 134 (6), 257-267.

J. Wysoglad, J.-E. Ehlers, T. Lewe, M. Dornbusch, J. S. Gutmann, Conformational study of melamine crosslinkersand spectroscopicalcomparison of HMMM molecules by practical measurements and quantum chemical calculations, J. Mol. Struct. 2018, 1166, 456-469

L. Weger, M. Weidmann, W. Ali, M. Hildebrandt, J. S. Gutmann, K. Hoffmann-Jacobsen, Polymer diffusion in the interphase between surface and solution, Langmuir, 2018, 34 (24), 7021-7027.

V. Strehmel, P. Strauch,"ESR investigation of spin probes in co-solvents and hydrophobic methacrylates used in enzyme-mediated radical polymerization" Journal of Molecular Liquids 2017, 226, 71-77.

V. Strehmel, D. Strunk, H. Wetzel, N. Strehmel,"Investigation of Lignin Obtained by Processing of Betula Pendula with Ionic Liquids," Sustainable Chemistry and Pharmacy, 2017, 6, 107-113.

M.Voigt, M. Jäger, On the photodegradation of azithromycin, erythromycin, and tylosin and their transformation products - A kinetic study. Sustainable Chemistry & Pharmacy 2017, 5, 131-140.

M. Voigt, I. Bartels , A. Nickisch-Hartfiel , M. Jäger , Photoinduced degradation of sulfonamides, kinetic, and structural characterization of transformation products and assessment of environmental toxicity. Tox. Env. Chem. 2017, 99, 1304-1327.

M. Reichinger, W. Bremser, M. Dornbusch, Interface and volume transport on technical cataphoretic painting: A comparison of steel, hot-dip galvanizedsteel and aluminiumalloy, Electrochim. Acta 2017, 231, 135-152

D. Kübler, A. Bergmann, L. Weger, K. N. Ingenbosch, K. Hoffmann-Jacobsen,"Kinetics of detergent-induced activation and inhibition of a minimal lipase" The Journal of Physical Chemistry B, 2017, 121(6), 1248-1257.

K. Jährling, S. Wolinski, A. Stefan, H. Helle, V. Bliem, M. Ulbricht, H. J. Schultz,"Particle Image Velocimetry Compared to CFD Simulation of Stirred Vessels with Helical Coils," Chem. Ing. Tech. 2016, 89 (4),401-408.

M. Dornbusch, S. Kirsch, C. Henzel, C. Deschamps, S. Overmeyer, K. Cox, M. Wiedow, M. Dargatz, U. Meisenburg,Characterization of the Water Uptake and Electrolyte Uptake of Organic Coatings and the Consequences by Means of Electrochemical Impedance Spectroscopy and UV-VIS Spectroscopy, Prog. Org. Coat. 89(2015), 332-343.

Detailed publication lists are accessible on the individual ILOC professor pages.

ORCID of individual members:

Prof. Dr.-Ing. H. J. Schultz

Prof. Dr. B. Strehmel

Prof. Dr. rer. nat. habil. V. Strehmel

DFG

• Hexaarylbisimidazoles for functionalization and self-healing of surfaces with NIR lasers and NIR LEDs, in-kind grant, Project Academy of Engineering Sciences, project number 318930685, 2016-2019, project leader: Prof. Dr. B. Strehmel
• New polymeric materials based on functionalized ionic liquids for applications in membranes, DFG transfer project, in-kind grant, 2014-2017, project leader Prof. Dr. V. Strehmel.
• Interactions of Aprotic and Functionalized Ionic Liquids with Radicals, DFG Priority Program SPP1196, project number 29242796, 2010-2013, project leader Prof. Dr. V. Strehmel

BMBF

• FHprofUnt 2014: Comp Opt Rec (Surface Adhesion Optimized Fiber-Plastic Composites with Design-Oriented Comparative Material Characterization / Characteristic Value Determination Considering New Material and Recyclate), 2014-2017, project leader: Prof. Dr. E. Cleve and Prof. Dr. M. Heber
• FHprofUnt 2014: Mixing 2020 (Energy Saving Process Technology: Increasing the Energy Efficiency of Stirring Processes), 2014-2017, project leader: Prof. Dr. H.-J. Schultz
• FHprofUnt 2014: MoMaDruDig (Modern materials for ultra-fast printing in the digital age), 2014-2017, Project leaders: Prof. Dr. B. Strehmel and Prof. Dr. V. Strehmel.
• Program for female professors, Prof. Dr. Kerstin Hoffmann-Jacobson, 2011-2015
• Female professors program, Prof. Dr. Veronika Strehmel, 2010-2014
• FHprofUnt 2007: Water-free impregnation of high-strength and temperature-resistant aramid fibers, supercritical carbon dioxide, Prof. Dr. E. Cleve, 2007-2010

BMWi

• ZIM: Characterization and application tests of scratch-resistant new nano paints, 2018-2020, Project leader: Prof. Dr. B. Strehmel
• ZIM: Development of isocyanate-free waterborne polyurethane coatings for coating parquet and resilient floor coverings, aqueous dispersions of isocyanate-free polyurethane binders, 2016-2019, Project leader: Prof. Dr. B. Strehmel
• ZIM: Optimization of the storage stability of waterborne corrosion protection systems based on zinc flake pigments, 2012-2014, project leader: Prof. Dr. M. Groteklaes
• ZIM: Photoinitiators for resources and energy-saving polymerization techniques, 2012-2014, project leader: Prof. Dr. B. Strehmel
• ZIM: Optical system for quality monitoring in the textile industry, 2011-2013, project leader: Prof. Dr. E. Cleve

Ministry of Culture and Science of the State of North Rhine-Westphalia

• FH Zeit für Forschung: REFUBELAS (Reversible functionalized surface coatings with NIR line focus lasers and NIR LEDs), 2017-2020, Project leader: Prof. Dr. B. Strehmel
• FH EXTRA: Development of a labeling material based on apple pomace, 2013-2014, project leader: Prof. Dr. E. Cleve
• FH EXTRA: Production of nonwovens, 2010-2012, Project leader: Prof. Dr. E. Cleve
• FH Basis equipment program: mass spectrometer, 2014, project leader: Prof. Dr. M. Jäger
• UAS Basic Equipment Program: High-speed endoscope camera system for process development, 2013, project leader: Prof. Dr. H.-J. Schultz
• UAS Basic Equipment Program: DSC Q2000, 2012, Project Manager: Prof. Dr. B. Strehmel
• UAS basic equipment program: CARY5000, 2011, project leader: Prof. Dr. E. Cleve

EU funded projects

• Interreg Va: Smart Production, 2017-2019, Project leader: Prof. Dr. M. Heber
• Interreg IVa: Functional Surfaces - Innovative Adhesives, 2011-2015, Project leader: Prof. Dr. E. Cleve
• Interreg IV: Functional Surfaces - Powder Navigator, 2011-2015, Project leader: Prof. Dr. T. Brock

Ongoing doctoral theses of our PhD students in the ILOC

• Sedef Eyeoglu: "Biophysical analysis of the interaction of lipases with block copolymers", since 2023, Supervisor: Prof. Dr. Kerstin Hoffmann-Jacobsen
• Carina Zube: "Application-oriented optimization of mixing processes using multi-stage stirring systems (Multi Stage Stirrers - MISS)", since 2023, Supervisor: Prof. Dr. H.-J. Schultz
• Lena Kögel: "Application-oriented optimization of mixing processes using multi-stage stirring systems (Multi Stage Stirrers - MISS)", since 2023, Supervisor: Prof. Dr. H.-J. Schultz
• Gaoyuan Zhang: "Modelling of coating ingredients via group contribution methods based on machine learning", since 2022, Supervisor: Prof. Dr. Bernd Strehmel
• Pascal Desel: "Investigation of safety relevant reactions in microreactors", since 2022, Supervisor: Prof. Dr. Andreas Roppertz
• Sascha Driesen: "Investigations on photonic based filming of coatings with polymethines in the near infrared in the range of 700-1100nm", since 2021, Supervisor: Prof. Dr. Bernd Strehmel
• Nicolai Meckbach: "Investigations on controlled polymethines in the near-infrared from 700-1100nm", since 2021, Supervisor: Prof. Dr. Bernd Strehmel
• Taner Poplata: "From the Dresden dye collection to photochemical paint application", since 2021, Supervisor: Prof. Dr. Bernd Strehmel
• Qunying Wang: "Fabrication and characterization of innovative (nano)coating via UV and NIR-sensitized photo-polymerization", since 2020, Supervisor: Prof. Dr. B. Strehmel
• Lukas Appelhoff: "Physical and chemical drying of coatings with NIR radiation", since 2020, Supervisor: Prof. Dr. Bernd Strehmel
• Patrick Böhm: "Binders based on renewable raw materials", since 2020, Supervisor: Prof. Dr. M Dornbusch
• Lisa Marie Radeke: "Optimization of spiral jet mills", since 2020, Supervisor: Prof. Dr. H.-J. Schultz
• Michelle Weinert: "Sustainable autophoretic coatings for corrosion protection of substrates", since 2020, Supervisor: Prof. Dr. Michael Dornbusch
• André Lorenz: "Investigation of the dynamics of proteins on surfaces using fluorescence spectroscopy", since 2020, Supervisor: Prof. Dr. Kerstin Hoffmann-Jacobsen
• Dorothee Schmiemann, "Investigation of the degradation of trace substances by combined oxidative-enzymatic wastewater treatment", since 2020, Supervisor: Prof. Dr. Hoffmann-Jacobsen
• Julia Seithümmer, "Development of enzymatic biocatalysts and their synthesis routes to functionalized polymers", since 2019, supervisor: Prof. Dr. Kerstin Hoffmann-Jacobsen
• Marian Matzke, "Application-oriented optimization of mixing processes using multistage stirring systems," since 2019, supervisor: Prof. Dr. H.-J. Schultz
• Paul Hermes, "Modification of upconverting nanoparticles with photoinitiating groups," since 2019, supervisor: Prof. Dr. Bernd Strehmel
• Andrea Hermsen: "Signal amplified spectroscopy," since 2017, supervisor: Prof. Dr. Martin Jäger
• Sven Wolinski: "PIV/LIF investigations of suspension stirring processes", since 2016, supervisor: Prof. H.-J. Schultz

• Phillip Knospe, "Novel crosslinking reactions for paint technology," 2023, University Duisburg-Essen
• Dr. Joscha Prießen, "Investigation of influencing parameters and modeling of rotary kiln processes in iron oxide pigment production, " 2022, University-Duisburg-Essen
• Dr. Dennis Oprych, "Mediated UV photopolymerization of coatings by upconverting nanoparticles," 2021, University-Duisburg-Essen
• Dr. Annett Halbhuber, "Strategies for the design of new iodonium salts with polymerizable anions in photopolymers," 2021, University-Duisburg-Essen
• Dr. Yulian Pang, "Photopolymerization with new LED systems emitting in the near infrared region," 2021, University of Duisburg-Essen
• Dr. Berran Sanay, "Monomers and Polymers Based on Renewable Resources for New Photopolymer Coating," 2021, University of Potsdam
• Dr. P. I. Kaestner, "New polymer materials based on functionalized ionic liquids for potential application in membranes," 2021, University of Potsdam
• Dr. Dennis Wunschik, "Investigation of novel methods for enzyme immobilization and reaction control for enzyme-catalyzed syntheses, " 2021, University of Duisburg-Essen
• Dr. Janek Wysoglad, "Influences of layer structures of coil coating systems and their property profiles," 2021
• Dr. Christoph Langner, "Clarification of the specific corrosion mechanism on CuNiCr electroplated coating systems, " 2021
• Dr. Marc Labusch, "Laser-based nanoparticle synthesis and impregnation of mesoporous catalysts, aerogels and polymers in supercritical_CO2," 2020, University of Duisburg-Essen
• Dr. Ceren Kütahya, "Photochemical Strategies for Macromolecular Synthesis in Near Infrared Region," 2020, University of Duisburg-Essen
• Dr. Michael Schläpfer, "Hexaarylbiimidazoles as alternative photoinitiators for photoinitiated polymerizations with UV-LEDs," 2020, University of Paderborn
• Dr. Florian Filarsky, "Investigations on promoted gas hydrate separation, " 2019, University of Duisburg-Essen
• Dr. Robin Legner: "Combined use of compact 1H NMR, NIR and Raman spectroscopy with multivariate data analysis in process analytics," 2019, University of Duisburg-Essen
• Dr. Sebastian Walther:"Functionalization of oleic acid methyl esters and alkyd resins for photoinduced radical polymerization in the UV range," 2019, University of Potsdam
• Dr. Katja Jährling, "Investigation of stirring processes with different heat exchanger internals and optimization of flow regimes using Particle Image Velocimetry (PIV)," 2019, University of Duisburg-Essen
• Dr. Björn Lewandowski: "Investigation of Complex Multiphase Flows by Advanced Optical Methods at the Example of the Flotation Process of Fluorite," 2019, University of Duisburg-Essen
• Dr. Alexander Stefan: "Steigerung der Energy Efficiency in Stirred Reaktoren unter Nutzung Numerischer Strömungssimulation / Enhancement of Energy Efficiency in Stirred Tank Reactors by Use of Computational Fluid Dynamics", 2018, University of Duisburg-Essen
• Dr. Bartholomäus Luczak:"Influence of flow conditions inside jet mills and impact on grinding performance / Flow conditions inside spiral jet mills and impact on grinding performance", 2018, University of Duisburg-Essen
• Dr. Lukas Weger:"Investigation of polymer dynamics on surfaces using luorescence correlation spectroscopy and Förster energy transfer", 2018, University of Duisburg-Essen.
• Dr. Melanie Reichinger:"Investigations of the direction-driven water and ion transport along the interfaces and through the polymer networks," 2018, University of Paderborn
• Dr. Jasmin Mankiewicz:"Fabrication, modification and application of fiber-reinforced duromers using nonwoven of carbon fiber rezykla," 2018, University of Duisburg-Essen
• Dr. David Strunk:"Extraction of phenolic components from birch stem as a raw material source for the synthesis of a new substituted phenyl methacrylate and its polymerization," 2018, University of Potsdam
• Dr. Christian Schmitz:"Laser- and LED-initiated NIR photopolymerization with thermal and photonic processes for coatings," 2017, University of Duisburg-Essen
• Dr. Florian Stephan Merkel:"Research on inhibition of gas hydrate formation in pipelines and armatures using surface active substances," 2017, University of Duisburg-Essen
• Dr. Sven Reichenberger:"Carrier of laser-generated gold nanoparticles in liquid and supercritical media," 2017, University of Duisburg-Essen
• Dr. Melanie Voigt:"Photoinduced degradation of pharmaceutically relevant substances in waters - Kinetic, structural-chemical and ecotoxicological studies of active ingredients and their degradation products using advanced oxidation processes," 2017, University of Duisburg-Essen
• Dr. Thomas Brömme:"Studies on NIR-sensitized radical photopolymerization in multifunctional monomers," 2016, University of Duisburg-Essen
• Dr. Volker Bliem:"Investigations of the influence of flow conditions on heat transfer in stirred reactors with coil internals using "Particle Image Velocimetry" and "Laser Induced Fluorescence," 2016, University of Duisburg-Essen
• Dr. Stefan Berdzinski:"Photoinduced radical polymerization in ionic liquids and the influence of radical recombination", 2014, University of Potsdam.

We have many years of experience in cooperation with companies. We carried out very successful research and development projects with companies from the region, Germany and abroad (EU, Asia). All companies were impressed by our range of services. This includes among others:

Analytical service

• Thermal analysis such as DSC, TGA
• NMR (Fourier 300 from Bruker)
• Elemental analysis for CHNS
• Molar mass determination by GPC and viscometry
• Viscosity determination by rheology
• Mechanical analysis with DMA
• Boundary angle measurements
• SEM with EDX coupling
• Method development

Chemical reactions and technology

• Scale up of chemical reactions up to several kilograms
• Photopolymerizations by photo-DSC (Q 2000) and real-time FTIR (Bruker Vertex 70)
• Process development, project planning, scale-up, scale-down
• Experiments in laboratory and pilot plant scale
• Process engineering apparatus calculation, design
• Product syntheses and parameter determination, catalyst screening
• Process engineering process simulation, computational fluid dynamics (CFD)

Application-technological paint investigations

• Formulation of paint systems to optimize technical properties
• Formulation, binder synthesis
• Application (spraying, dipping, doctoring, KTL)
• Drying (thermal, IR; NIR, UV)
• Examination (all common DIN tests used in the coatings industry)
• Salt spray test

Fluorescence spectroscopic analysis, especially development and performance of activity assays for enzymes

• Fluorescence spectrometer Cary Eclipse (Agilent)
• Fluorescence lifetime spectrometer PicoTime 100 (PicoQuant)
• Microscope setup (self-made) for fluorescence correlation spectroscopy

Wastewater treatment and analysis

• Total Organic Carbon (Shimadzu)
• Atomic absorption spectroscopy (Shimadzu)
• Performance of DIN tests for the determination of classical wastewater parameters
• Laboratory wastewater treatment, laboratory ozonation
• Rapid small scale column tests

further service

• Six Sigma analyses
• Lean-Sigma-Analyses
• Route-Cause-Analysis
• Consulting

• Light as reagent and tool: photopolymers
  • LED-initiated photopolymerization with UV light, visible light and NIR light
  • kinetics using photo-DSC and real-time FTIR
  • converting nanoparticles: from NIR photons to blue and UV light
  • innovative photoinitiator systems
  • switchable coatings
• new ways. to binders
  • isocyanate-free urethanes: a new innotive polymer material
  • controlled radical polymerization with light: the way to tailor-made polymers
  • Click Chemistry
• Analysis of corrosion and transport processes in, on, and under coatings and analysis of corrosion phenomena
  • Electrochemical impedance spectroscopy
  • Scanning Kelvin probe with height control (Raman coupling)
  • Electrochemical methods (I/E, CV)
  • Technical tests (SST, moisture storage etc.)
  • IR spectroscopy (microscope, ATR, IRRAS)
  • Confocal Raman spectroscopy
  • UV-VIS spectroscopy
• Electrochemical impedance spectroscopy
  • Electrochemical methods
  • EIS on KTL
• Scanning Kelvin probe with height control and confocal Raman coupling
  • Analysis of transport processes or corrosion processes under coatings
• Quantum mechanical calculations using mainframe computers (Gaussian)
  • Quantum mechanical calculations by means of DFT
  • Analysis of film formation by simulation of the structures and reactions during crosslinking

• Applied heterogeneous and homogeneous catalysis
• New, innovative synthesis routes with coupled process development
  • Catalytic supply of basic chemicals from renewable raw materials
  • Development of new catalyst systems
• Gas hydrates/gas hydrate technology - inhibitor research, flow insurance
  • Decentralized (bio)gas storage
  • -> as a source of raw materials
  • -> as CO2 storage
  • -> gas separation
  • Biogas and natural gas processing
  • Seawater desalination/wastewater treatment
  • Hydrogen storage
• Fluid and particle flow - Flow measurement technology
  • Laser induced fluorescence (LIF) - Concentration, temperature and pH distribution in reactors
  • Shadowgraphy
  • Particle Image Velocimetry (PIV) - detailed process description, avoidance of hot spots
  • Flow simulation (OpenFOAM(R))
  • Energy saving process technology
  • flow conditions - (un)catalyzed processes/reactions - reactors
  • particle transport + particle size reduction, optimization of grinding processes
• Stirring and mixing technology
• Supercritical fluids for the deposition of nanoparticles and molecules into porous structures or surfaces
• Nonwovens and composites
• Statistics, DoE, chemometrics
• Nanoparticle synthesis
• Nanoparticle functionalization
• Scale Up of Syntheses
• Nanocomposites
• Multi-material mix composites
• Surface functionalization of various materials (inorganic as well as organic and polymer)

• Polymer synthesis in green media and with green technology
  • ionic liquids
  • emulsion and miniemulsion
  • polymerizable ionic liquids
  • controlled radical polymerization
  • photopolymerization in ionic liquids
• enzymatic polymerization
  • peroxidase
  • lipase
• polymeric materials based on renewable raw materials
  • Wood waste as a bioresource
  • oleic acid and its functionalization

• Characterization, activity investigation and production of enzymatic biocatalysts.
• Exploration of new application areas for innovative biocatalysts in the fields of green synthesis and environmental technology
• Investigation of the interface between surfaces and polymers for the understanding of filler-polymer interactions
• Trace substance elimination from wastewater

• Spectroscopic characterization: MS, NMR, IR, Raman
• Chromatography: HPLC, GC
• Process analytics
• Pharmaceuticals in waste water
• Trace substance analysis
• Chemometrics