Prof. Dr. Karlheinz Graf

Hochschule Niederrhein. Dein Weg.


Aktuelle Lehrveranstaltungen

Die Beschreibung der Lehrinhalte finden Sie in den entsprechenden Modulhandbüchern.



Mathematik II SS 2020 (B.Eng./Dual/TZ)



Numerische Optimierung SS 2020 (M.Eng.)


Frühere Lehrveranstaltungen


Mathematik I WS 2019/20 (B.Sc./B.Eng./Dual/TZ)

Mathematik II SS 2019 (B.Sc.)

Mathematik I WS 2018/19 (B.Sc.)

Mathematik II SS 2018 (B.Sc.)

Mathematik I WS 2017/18 (B.Sc.)

Mathematik II SS 2017 (B.Sc.)

Mathematik I WS 2016/17 (B.Sc.)

Mathematik II SS 2016 (B.Sc.)

Mathematik I WS 2015/16 (B.Sc.)

Mathematik II SS 2015 (B.Eng./B.Sc.)

Mathematik I WS 2014/15 (B.Eng./B.Sc.)

Mathematik II SS 2014 (B.Eng./B.Sc.)

Mathematik I WS2013/14 (B.Eng./B.Sc.)

Mathematik II SS 2013 (B.Sc.)

Mathematik I WS 2012/13 (B.Sc.)



Kolloid- und Grenzflächenchemie WS 2019/20 (M.Eng./M.Sci.)

Kolloid- und Grenzflächenchemie WS 2018/19 (M.Eng.)

Kolloid- und Grenzflächenchemie WS 2017/18 (M.Eng.)

Kolloid- und Grenzflächenchemie WS 2016/17 (M.Eng.)

Numerische Optimierung SS 2019 (M.Eng.)

Numerische Optimierung SS 2018 (M.Eng.)

Mathemat. Optimierung II SS 2017 (M.Eng.)

Mathemat. Optimierung II SS 2016 (M.Eng.)

Mathemat. Modelle WS 2019/20 (M.Eng.)

Mathemat. Modelle WS 2018/19 (M.Eng.)

Mathemat. Modelle WS 2017/18 (M.Eng.)

Mathemat. Modelle WS 2016/17 (M.Eng.)

Mathemat. Modelle WS 2015/16 (M.Eng.)

Mathemat. Modelle WS 2014/15 (M.Eng.)

Mathemat. Modelle WS 2013/14 (M.Eng.)






Vita eintragen oder Link


Der folgende Link führt auf meine externe Forschungsseite. Zertifikat bitte akzeptieren!

Forschung K. Graf (extern)



  • W. Ali, B. Gebert, S. Altinpinar, Th. Mayer-Gall, M. Ulbricht, J. S. Gutmann, K. Graf, On the Potential of Using Dual-Function Hydrogels for Brackish Water Desalination, Polymers, 2018, 10, 567–588.



  • D. Gabriel, A. Karbach, D. Drechsler, J. S. Gutmann, K. Graf, S. Kheirandish, Bound rubber morphology and loss tangent properties of carbon-black-filled rubber compounds, Colloid Polym. Sci., 2016, 294, 501–511.



  • W. Ali, B Gebert, T. Hennecke, K. Graf, M. Ulbricht, J. S. Gutmann, Design of Thermally Responsive Polymeric Hydrogels for Brackish Water Desalination: Effect of Architecture on Swelling, Deswelling, and Salt Rejection, ACS Appl. Mater. Interfaces, 2015, 7, 15696−15706.



  • H.-J. Butt, K. Graf, M. Kappl, Physics and Chemistry of Interfaces, 3rd edition, Wiley-VCH, 2013.



  • C. E. McNamee, M. Kappl, H.-J. Butt, H. Nguyen, S. Sato, K. Graf, Th. W. Healy, Effect of the degree of dissociation of molecules in a monolayer at an air/water interface on the force between the monolayer and a like-charged particle in the subphase, J. Phys. Chem. B, 2012, 116, 13731−13738.



  • C. E. McNamee, M. Kappl, H.-J. Butt, J. Ally, H. Shigenobu, Y. Iwafuji, K. Higashitani, K. Graf, Forces between a monolayer at an air/water interface and a particle in solution: influence of the sign of the surface charges and the subphase salt concentration, Soft Matter, 2011, 7, 10182–10192.
  • C. E. McNamee, K. Graf, H.-J. Butt, K. Higashitani, M. Kappl, Interaction between a silica particle and the underside of a polymer monolayer at the air/water interface in the presence of an anionic surfactant, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2011, 383, 32–40.



  • K. Graf, K. Büscher, M. Kappl, S. Moreno-Flores, D. Pum, U. B. Sleytr, J. L. Toca-Herrera,<br> The Monolayer Particle Interaction Apparatus: Interaction of colloidal probes and lipid-protein layers at the air-water interface, in: Biomimetics in Biophysics: Model Systems, Experimental Techniques and Computation, ed. José L. Toca-Herrera, Transworld Research Signpost, pp. 109-125, Kerala 2010 (ISBN: 978-81-308-0385-2).
  • C. E. McNamee, M. Kappl, H.-J. Butt, K. Higashitani, K. Graf, Interfacial Forces between a Silica Particle and Phosphatidylcholine Monolayers at the Air-Water Interface, Langmuir, 2010, 26(18), 14574–14581.



  • Y. Karade, S. A. Pihan, W. H. Brünger, A. Dietzel, R. Berger, K. Graf, Determination of crosslink density in ion-irradiated polystyrene surfaces from rippling, Langmuir, 2009, 25, 3108-3114.
  • G. Li, K. Graf, Microstructures formation by deposition of toluene drops on polystyrene surface, PCCP, 2009, 11, 7137-7144.
  • G. Li, S. M. Flores, Ch. Vavilala, M. Schmittel, K. Graf, Evaporation Dynamics of Microdrops on Self-Assembled Monolayers of Dialkyl Disulfides, Langmuir, 2009, 25(23), 13438–13447.



  • F. Schönfeld, K. Graf, S. Hardt, H.-J. Butt, Time of evaporation of sessile liquid drops in still air with constant contact radius, International Journal of Heat and Mass Transfer, 2008, 51, 3696-3699.
  • H. Payer, T. Haschke, R. Reichardt, G. Li, K. Graf, W. Wiechert, Profile Analysis of Regularly Microstructured Surfaces, Fluid Dynamics and Material Processing, 2008, 4(2), 61-76.
  • M. Toda, A. N. Itakura, S. Igarashi, K. Büscher, J. Gutmann, K. Graf, R. Berger, Surface stress, thickness, and mass of the first few layers of polyelectrolyte, Langmuir, 2008, 24(7), 3191-3198.
  • R. Zhang, T. Cherdhirankorn, K. Graf, K. Koynov, R. Berger, Swelling of cross-linked polystyrene beads in toluene, MNE, 2008, 85, 1261-1264.
  • R. Pericet-Camara, E. Bonaccurso, K. Graf, Microstructuring of polystyrene surfaces by non-solvent sessile droplets, ChemPhysChem, 2008, 9, 1738-1746.
  • G. Münchow, F. Schönfeld, S. Hardt, K. Graf, Protein diffusion across the interface in aqueous two-phase systems, Langmuir, 2008, 24, 8547-8553.


  • T. Haschke, W. Wiechert, K. Graf, E. Bonaccurso, G. Li, F.-T. Suttmeier, Evaporation of Solvent Microdrops on Polymer Substrates: From Well Controlled Experiments to Mathematical Models and Back, Nanoscale and Microscale Thermophysical Engineering (NMTE), 2007, 11, 31-41.
  • Y. Karade, K. Graf, W. H. Brünger, A. Dietzel, R. Berger, Oriented nanometer surface morphologies by thermal relaxation of locally cross-linked and stretched polymer samples, MNE, 2007, 84, 797-801.
  • G. Li, K. Graf, E. Bonaccurso, D.S. Golovko, A. Best, H.-J. Butt, Evaporation structures of solvent drops evaporating from polymer surfaces: Influence of molar mass, Macromol. Chem. Phys., 2007, 208, 2134–2144.



  • M. Toda, K. Büscher, K. Graf, A. N. Itakura, R. Berger, Surface stress of polyelectrolyte adsorption measured by micromechanical cantilever sensors, J. Surf. Sci. Nanotechnol., 2006, 4, 1-4.
  • K. Büscher, R. Berger, W. Brünger, K. Graf, Surface morphologies in polymers by irradiation with argon ions and consecutive swelling, Microelectronic Engineering, 2006, 83, 819-822.
  • N. Loges, K. Graf, L. Nasdala, W. Tremel, Probing Cooperative Interactions of Tailor-Made Nucleation Surfaces and Macromolecules: A Bio-inspired Route to Hollow Micrometer-Sized Calcium Carbonate Particles, Langmuir, 2006, 22, 3073-3080.
  • C. Stupperich-Sequeira, K. Graf, W. Wiechert, Modeling and simulation of micro-well formation, Mathematical and Computer Modelling of Dynamical Systems, 2006, 12, 263-276.
  • T. Haschke, K. Graf, E. Bonaccurso, G. Li, F.-T. Suttmeier, W. Wiechert, Evaporation of Solvent Microdrops on Polymer Substrates: Crater Geometries and Parameter Sensitivity Analysis, Proceedings of the Second International Conference on Transport Phenomena in Micro and Nanodevices, ed. M. Gad-el-Hak, Paper No. VIII-5, CD Publication, Engineering Conference International, Brooklyn, New York 2006.
  • P. Chiranjeevi, K. Graf, J. Kressler, Langmuir Monolayer and Langmuir-Blodgett Films of Amphiphilic Triblock Copolymers with Water Soluble Middle Block, Coll. Polym. Sci., 2006, 285, 27-37.
  • S. Karabasheva, S. Baluschev, K. Graf, Microstructures on soluble polymer surfaces via solvent drop deposition, APL, 2006, 89, 031110.
  • E. Bonaccurso, B. Cappella, K. Graf, Local mechanical properties of plasma treated polystyrene surfaces, J. Phys. Chem. B., 2006, 110, 17918-17924.
  • G. Li, H.-J. Butt, K. Graf, Microstructures by solvent drop evaporation on polymer surfaces: dependence on molar mass, Langmuir, 2006, 22, 11395-11399.
  • R. Zhang, K. Graf, R. Berger, Swelling of crosslinked polystyrene spheres in toluene vapor using micromechanical cantilever sensors, APL, 2006, 89, 223114.
  • G. Li, N. Höhn, K. Graf, Microtopologies in polymer surfaces by solvent drops in contact and noncontact mode, APL, 2006, 89, 241920.



  • G. Gillies, K. Büscher, M. Preuss, M. Kappl, H.-J. Butt, K. Graf, Contact Angles and Wetting Behavior of Single Micron-sized Particles, J. Physics: Condens. Matter, 2005, 17, S445-S464.
  • E. Bonaccurso, H.-J. Butt, B. Hankeln, B. Niesenhaus, K. Graf, Fabrication of microvessels and microlenses from polymers by solvent droplets, Appl. Phys. Lett., 2005, 86, 124101.
  • M. Schmittel, M. Lal, K. Graf, G. Jeschke, I. Suske, J. Salbeck, N,N´-Dimethyl-2,3-dialkylpyra¬zinium salts as redox-switchable surfactants? Redox, spectral, EPR and surfactant properties, Chem. Comm., 2005, 45, 5650-5652.



  • E. Bonaccurso, H.-J. Butt, K. Graf, Microarrays by Structured Substrate Swelling, European Polymer Journal, 2004, 40, 975–980.
  • E. Bonaccurso, K. Graf, Nanostructuring effect of plasma and solvent treatment on polystyrene, Langmuir, 2004, 20, 11183-11190.
  • A. Förtig, R. Jordan, K. Graf, G. Schiavon, O. Purrucker, M. Tanaka, Solid-Supported Biomimetic Membranes with Tailored Lipopolymer Tethers, Macromol.Symp., 2004, 210, 329-338.
  • B. Ohler, K. Graf, R. Bragg, T. Lemons, R. Coe, C. Genain, J. Israelachvili, C. Husted, Role of lipid interactions in autoimmune demyelination, BBA, 2004, 1688, 10-17.



  • C. Stupperich-Sequeira, K. Graf, W. Wiechert, Modeling of the Production of Microwells, Conference Proceedings 4th Mathmod, in: ARGESIM-Reports, Vol. 24, eds.: I. Troch and F. Breitenecker, Vienna 2003, ISBN 3-901608-24-9.



  • K. Graf, H. Baltes, H. Ahrens, C. A. Helm, C. A. Husted, Structure of Hydroxylated Galactocerebrosides from Myelin at the Air-Water Interface, Biophys. J., 2002, 82, 896-907.
  • K. Büscher, K. Graf, H. Ahrens, C. A. Helm, Influence of adsorption conditions on the structure of polyelectrolyte multilayers, Langmuir, 2002, 18(9), 3585-3591.
  • E. Bonaccurso, H.-J. Butt, V. Franz, K. Graf, M. Kappl, S. Loi, B. Niesenhaus, S. Chemnitz, M. Böhm, B. Petrova, U. Jonas, H.W. Spiess, Water induced dewetting of ultrathin polystyrene films on hydrophilic surfaces, Langmuir, 2002, 18(21), 8056-8061.



  • H. Ahrens, K. Graf, C. A. Helm, Observation of a Superstructure X-Ray Peak within lipopolymer monolayers on the water surface, Langmuir, 2001, 17(11), 3113-3115.



  • K. Graf, H. Riegler, Is there a General Equation of State Approach for Interfacial Tensions?, Langmuir, 2000, 16(11), 5187-5191.
  • H. Ahrens, T.R. Baekmark, R. Merkel, J. Schmitt, K. Graf, R. Raiteri, C. A. Helm, Hydrophilic/hydrophobic nanostripes in lipopolymer monolayers, Chem. Phys. Chem. copublished with Angewandte Chemie – Intl. Ed., 2000, 2, 101-106.



  • B. Ohler, K. Graf, T. Lemons, R. Coe, S. Jahangir, W. See, C. Genain, C. Husted, Myelin lipid research using Langmuir monolayers, Journal of Neurochemistry, 1999, 72 suppl., 15.



  • K. Graf, H. Riegler, Molecular adhesion interactions between Langmuir monolayers and solid substrates, Colloids and surfaces A: Physicochemical and Engineering Aspects, 1998, 131, 215-224.



  • R. Jordan, K. Graf, H. Riegler, K. Unger, Polymer supported alkyl monolayers on silica: synthesis and self assembly of terminal functionalized poly(N-propionyl¬ethylenimine)s, Chem. Commun., 1996, 9, 1025-1026.



  • C. Flament,K. Graf, F. Gallet, H. Riegler, Structure of an anisotropic two-dimensional solid in a Langmuir film studied by electron scattering, Thin Solid Films, 1994, 243, 411-414.

Inhouse Arbeiten

Projekt-/Bachelor-/Masterprojekt- und Masterarbeiten, Promotionen usw.




Wael Ali, M.Sc.
Doktorand / Betreuer an der HN: Prof. Dr. Karlheinz Graf

Physikalische Chemie Mitglied ILOC-Institut