Université Paris-Saclay

MMOI (Matière molle aux interfaces – Soft interfaces) Group leader – 20 people.

Head of the “Soft matter and physics/biology interface” axis of the Laboratoire de physique des solides– 70 people.

Directeur de recherche CNRS (CNRS Research Professor)

Habilitation à diriger les recherches
Bât. 510 – Campus d’Orsay
91405 Orsay Cedex
Tél. : +33 (0)1 69 15 70 78/+33 (0)6 71 81 86 93
Mail : frederic.restagno@universite-paris-saclay.fr

Full CV in French


  • Friction and adhesion of polymers
  • Liquides and foam stability
  • Friction in interleaved sytems


  • 2000 : PhD in Physics ENS Lyon
  • Accreditation to direct research (HDR), 2013, Paris Sud University

Present PhDs and post-docs

I am currently happy to mentor some amazing students. If you want to now more about them, do not hesitate to google them.

  • Marina Pasquet – 30 % – Co-directeur de thèse (thèse début oct. 2018) Directrice de thèse Emmanuelle Rio – Sujet de la thèse : stabilité d’objets savonneux.
  • Gabriel Guyard – 50 % Directeur de thèse (Début oct. 2019, CD EDPIF). Sujet : Transport hydrodynamique dans les solutions de polymères en milieux confinés – Co-directeur : François Boulogne.
  • Marie Corpart – 30 % – Directeur de thèse (Début oct. 2019, CIFRE Saint-Gobain). Sujet : Évaporation en transport convectif – Co-directeur : François Boulogne (HDR).
  • Tiago Outerelo-Corvo – 50 % – Directeur de thèse (Début oct. 2020, ANR POILLU). Sujet : Lubrifiants poly(liquides ioniques) améliorés : structure multi-échelle et propriétés interfaciales – Co-encadrement : Alexis Chennevière (CEA-LLB).
  • Suzanne Lafon – 60 % – Directeur de thèse (Début oct. 2020, CDSN ENS Paris). Sujet : Effet de la température sur le frottement de liquides sur des surfaces solides – Co-encadrement : Alexis Chennevière (CEA – LLB)
  • Alice Etienne-Simonetti – 30 % Co-directeur de thèse (Début oct. 2021, ANR DRAINFILM): Sujet Étude de la régénération marginale – Direction de thèse : Emmanuelle Rio.

Marina Pasquet et Frédéric Restagno. Photo: Serge Guichard

Present teaching activities

Despite a CNRS position, which means that teaching is not mandatory, I developed among the years a real interest in physics teaching at master lever. I list here only a couple of lecture I gave among the years.

  • “Soft matter” – Cours M1 iCFP ENS [16 h/year].
  • Préparation à l’agrégation externe de sciences physiques option physique – ENS Paris-Saclay
    • Cours de mécanique des fluides [16 h/year]
    • Corrections de leçons et montages
  • Jury de l’agrégation interne de physique-chimie (2018-2022)

Past teaching or related activities

The research theme of my work is the mechanics at interfaces and the role of the structure of this interface on the global behavior at the macroscopic scale. Among the diffferent projects that I have, I can cite.

  • The mechanical properties of the solid-fluid interface. The question that interests me is how simple or complex fluids slip on the walls and what are the mechanisms of transmission of interfacial stresses. For example, in the last few years, I have been working on the slip of polymer melts and solutions: role of the nature of the interface, role of the structure of the interface, influence of molecular parameters, influence of temperature. In collaboration with François Boulogne and Emmanuelle Rio we have extended this question to the problem of the friction of liquid foams on solids. I have recently collaborated with Vincent Mathieu and Isabelle Souchon (INRAE, Grignon) on the question of the interface between food gels and rough surfaces.
  • The mechancial properties of the fluid-gas interface. A second type of interfaces for which I study the mechanical properties are the liquid-air interfaces in the presence of surfactants. To be more precise, the question we are trying to address is the question of the generation and death of soap films and the role of the interface in these two phenomena. I started this work when Emmanuelle Rio joined the LPS, as it was a continuation of my post-doc work with David Quéré. Recently, we have been focusing on two issues: the role of evaporation, and the problem of entrainment at high capillary and Reynolds numbers by building in particular a device for automatic production of giant soap films.
  • The mechanical properties of the solid-solid interfaces. After having worked for several years on adhesion and friction problems on textured surfaces with Christophe Poulard, we have undertaken a systematic study of the role of adhesion and friction in interleaved systems.

Overall, my profile is that of an experimental physicist, interested in taking physical chemistry into account. We develop original experimental devices.

Keywords : Soft matter, physics, adhesion, friction, surfactants, soap films, polymers, interfaces.

Chen, Q., Restagno, F., Langevin, D., & Salonen, A. (2022). The rise of bubbles in shear thinning viscoelastic fluids. Journal of Colloid and Interface Science, 616, 360–368. https://doi.org/10.1016/j.jcis.2022.02.043
Grzelka, M., Antoniuk, I., Drockenmuller, É., Chennevière, A., Léger, L., & Restagno, F. (2021). Slip and Friction Mechanisms at Polymer Semi-Dilute Solutions/Solid Interfaces. Macromolecules, 54(10), 4910–4917. https://doi.org/10.1021/acs.macromol.0c02804
Villey, R., Martinot, E., Cottin-Bizonne, C., Phaner-Goutorbe, M., Léger, L., Restagno, F., & Charlaix, E. (2013). Effect of Surface Elasticity on the Rheology of Nanometric Liquids. Physical Review Letters, 111(21), 215701. https://doi.org/10.1103/PhysRevLett.111.215701
Srivastava, R., Bosc, V., Restagno, F., Tournier, C., Menut, P., Souchon, I., & Mathieu, V. (2021). A new biomimetic set-up to understand the role of the kinematic, mechanical, and surface characteristics of the tongue in food oral tribological studies. Food Hydrocolloids, 115, 106602. https://doi.org/10.1016/j.foodhyd.2021.106602
Mariot, S., Pasquet, M., Klein, V., Restagno, F., & Rio, E. (2021). A new setup for giant soap films characterization. The European Physical Journal E, 44(4), 52. https://doi.org/10.1140/epje/s10189-021-00054-5
Mantelet, M., Srivastava, R., Restagno, F., Souchon, I., & Mathieu, V. (2020). Real time ultrasound assessment of contact progress between food gels and tongue mimicking surfaces during a compression. Food Hydrocolloids, 109, 106099. https://doi.org/10.1016/j.foodhyd.2020.106099
Barraud, T., Devisme, S., Hervet, H., Brunello, D., Klein, V., Poulard, C., Restagno, F., & Léger, L. (2020). Convection and diffusion assisted reactive coupling at incompatible semi-crystalline polymer interfaces. Journal of Physics: Materials, 3(3), 035001. https://doi.org/10.1088/2515-7639/ab7f9c
Grzelka, M., Antoniuk, I., Drockenmuller, E., Chennevière, A., Léger, L., & Restagno, F. (2020). Viscoelasticity-Induced Onset of Slip at the Wall for Polymer Fluids. ACS Macro Letters, 9(7), 924–928. https://doi.org/10.1021/acsmacrolett.0c00182
Vuong, S., Léger, L., & Restagno, F. (2020). Controlling interfacial instabilities in PP/EVOH coextruded multilayer films through the surface density of interfacial copolymers. Polymer Engineering & Science, pen.25389. https://doi.org/10.1002/pen.25389
Mantelet, M., Restagno, F., Souchon, I., & Mathieu, V. (2020). Using ultrasound to characterize the tongue-food interface: An in vitro study examining the impact of surface roughness and lubrication. Ultrasonics, 103, 106095. https://doi.org/10.1016/j.ultras.2020.106095
Marchand, M., Restagno, F., Rio, E., & Boulogne, F. (2020). Roughness-Induced Friction on Liquid Foams. Physical Review Letters, 124(11), 118003. https://doi.org/10.1103/PhysRevLett.124.118003
Restagno, F. (2013). Entraînements de liquides et interfaces polymères [HDR].
Beuguel, Q., Guinault, A., Léger, L., Restagno, F., Sollogoub, C., & Miquelard-Garnier, G. (2019). Nanorheology with a Conventional Rheometer: Probing the Interfacial Properties in Compatibilized Multinanolayer Polymer Films. ACS Macro Letters, 8(10), 1309–1315. https://doi.org/10.1021/acsmacrolett.9b00662
Barraud, C., Cross, B., Picard, C., Restagno, F., Léger, L., & Charlaix, E. (2019). Large slippage and depletion layer at the polyelectrolyte/solid interface. Soft Matter, 15(31), 6308–6317. https://doi.org/10.1039/C9SM00910H
Kiparissoff-Bondil, H., Devisme, S., Rauline, D., Chopinez, F., Restagno, F., & Léger, L. (2019). Evidences for flow-assisted interfacial reaction in coextruded PA6/PP/PA6 films. Polymer Engineering & Science, 59(S1), E44–E50. https://doi.org/10.1002/pen.24841
Hénot, M., Drockenmuller, E., Léger, L., & Restagno, F. (2018). Sensing adsorption kinetics through slip velocity measurements of polymer melts. The European Physical Journal E, 41(7). https://doi.org/10.1140/epje/i2018-11697-4
Restagno, F., Martinot, E., Villey, R., Leroy, S., Poulard, C., Charlaix, E., & Léger, L. (2014). Sensing the Mechanical Properties of Supported Micro- to Nano-elastic Films. In B. Bhushan, D. Luo, S. R. Schricker, W. Sigmund, & S. Zauscher (Eds.), Handbook of Nanomaterials Properties (pp. 575–614). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-31107-9_31
Hénot, M., Chennevière, A., Drockenmuller, E., Léger, L., & Restagno, F. (2017). Comparison of the Slip of a PDMS Melt on Weakly Adsorbing Surfaces Measured by a New Photobleaching-Based Technique. Macromolecules, 50(14), 5592–5598. https://doi.org/10.1021/acs.macromol.7b00601
Cross, B., Barraud, C., Picard, C., Léger, L., Restagno, F., & Charlaix, É. (2018). Wall slip of complex fluids: Interfacial friction versus slip length. Physical Review Fluids, 3(6). https://doi.org/10.1103/PhysRevFluids.3.062001
Hénot, M., Grzelka, M., Zhang, J., Mariot, S., Antoniuk, I., Drockenmuller, E., Léger, L., & Restagno, F. (2018). Temperature-Controlled Slip of Polymer Melts on Ideal Substrates. Physical Review Letters, 121(17), 177802-1-177802–177805. https://doi.org/10.1103/PhysRevLett.121.177802
Dies, L., Restagno, F., Weil, R., Léger, L., & Poulard, C. (2015). Role of adhesion between asperities in the formation of elastic solid/solid contacts. The European Physical Journal E, 38(12), 130. https://doi.org/10.1140/epje/i2015-15130-4
Saulnier, L., Champougny, L., Bastien, G., Restagno, F., Langevin, D., & Rio, E. (2014). A study of generation and rupture of soap films. Soft Matter, 2899–2906. https://doi.org/10.1039/c3sm52433g
Champougny, L., Miguet, J., Henaff, R., Restagno, F., Boulogne, F., & Rio, E. (2018). Influence of Evaporation on Soap Film Rupture. Langmuir, 3221–3227. https://doi.org/10.1021/acs.langmuir.7b04235
Hénot, M., Chennevière, A., Drockenmuller, E., Shull, K., Léger, L., & Restagno, F. (2017). Influence of grafting on the glass transition temperature of PS thin films. The European Physical Journal E, 40(1), 11. https://doi.org/10.1140/epje/i2017-11500-2
Alarcón, H., Salez, T., Poulard, C., Bloch, J.-F., Raphaël, É., Dalnoki-Veress, K., & Restagno, F. (2016). Self-Amplification of Solid Friction in Interleaved Assemblies. Physical Review Letters, 116(1), 015502. https://doi.org/10.1103/PhysRevLett.116.015502
Dalnoki-Veress, K., Salez, T., & Restagno, F. (2016). Why can’t you separate interleaved books? Physics Today, 69(6), 74–75. https://doi.org/10.1063/PT.3.3208
Chennevière, A., Drockenmuller, E., Damiron, D., Cousin, F., Boué, F., Restagno, F., & Léger, L. (2013). Quantitative Analysis of Interdigitation Kinetics between a Polymer Melt and a Polymer Brush. Macromolecules, 46(17), 6955–6962. https://doi.org/10.1021/ma4007335
Jones, S., Rio, E., Cazeneuve, C., Nicolas-Morgantini, L., Restagno, F., & Luengo, G. S. (2016). Tribological influence of a liquid meniscus in human sebum cleaning. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 498, 268–275. https://doi.org/10.1016/j.colsurfa.2016.03.047
Vuong, S., Chedozeau, N., Guilment, J., Léger, L., & Restagno, F. (2017). Quantitative determination of interfacial copolymers from co-extruded films. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 529, 261–267. https://doi.org/10.1016/j.colsurfa.2017.05.020
Korolkovas, A., Rodriguez-Emmenegger, C., de los Santos Pereira, A., Chennevière, A., Restagno, F., Wolff, M., Adlmann, F. A., Dennison, A. J. C., & Gutfreund, P. (2017). Polymer Brush Collapse under Shear Flow. Macromolecules, 50(3), 1215–1224. https://doi.org/10.1021/acs.macromol.6b02525
Restagno, F. (2013, July 21). Confined polymers. 7th International Discussion Meeting on Relaxations in “Confined Sytems,” Barcelone (Espagne).
Restagno, F. (2015, March 22). Neutron reflectivity as a tool to study the interdigitation of grafted polymer chains and its dynamics. Adhesion society annual meeting, Savannah, USA.
Restagno, F. (2015, May 10). Control of the adhesion with soft patterned surfaces. Pressure Sensitive Adhesive Council, Baltimore, USA.
Restagno, F. (2015, May 20). Neutron reflectivity as a tool to study the interdigitation of grafted polymer chains and its dynamics. ITN Network NANOS3, Thiais, France.
Restagno, F. (2016, August). Friction of fluids and liquids. Phasme, Summer school, Cargèse, France.
Restagno, F. (2017, September 13). Soft polymer adhesion. BioSmart ITN, Paris, France.
Restagno, F. (2013, Juillet). Solid-Like Behavior of Confined Liquids. Gordon Research Conference, Mount-Holyoke (USA).
Restagno, F. (2014, March 3). Dynamics of Confined polymers. American Physical Society, Denver, USA.
Hénot, M., Drockenmuller, É., Léger, L., & Restagno, F. (2018). Friction of Polymers: from PDMS Melts to PDMS Elastomers. ACS Macro Letters, 7(1), 112–115. https://doi.org/10.1021/acsmacrolett.7b00842
Champougny, L., Rio, E., Restagno, F., & Scheid, B. (2017). The break-up of free films pulled out of a pure liquid bath. Journal of Fluid Mechanics, 811, 499–524. https://doi.org/10.1017/jfm.2016.758
Ledesma-Alonso, R., Raphaël, E., Léger, L., Restagno, F., & Poulard, C. (2016). Stress concentration in periodically rough Hertzian contact: Hertz to soft-flat-punch transition. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Science, 472(2193), 20160235. https://doi.org/10.1098/rspa.2016.0235
Chennevière, A., Cousin, F., Boué, F., Drockenmuller, E., Shull, K. R., Léger, L., & Restagno, F. (2016). Direct Molecular Evidence of the Origin of Slip of Polymer Melts on Grafted Brushes. Macromolecules, 49(6), 2348–2353. https://doi.org/10.1021/acs.macromol.5b02505
Champougny, L., Scheid, B., Restagno, F., Vermant, J., & Rio, E. (2015). Surfactant-induced rigidity of interfaces: a unified approach to free and dip-coated films. Soft Matter, 11(14), 2758–2770. https://doi.org/10.1039/C4SM02661F
Ferreira, J., Mikhailovskaya, A., Chenneviere, A., Restagno, F., Cousin, F., Muller, F., Degrouard, J., Salonen, A., & Marques, E. F. (2017). Interplay between bulk self-assembly, interfacial and foaming properties in a catanionic surfactant mixture of varying composition. Soft Matter, 13(39), 7197–7206. https://doi.org/10.1039/C7SM01601H
Zhu, Y., Bironeau, A., Restagno, F., Sollogoub, C., & Miquelard-Garnier, G. (2016). Kinetics of thin polymer film rupture: Model experiments for a better understanding of layer breakups in the multilayer coextrusion process. Polymer, 90, 156–164. https://doi.org/10.1016/j.polymer.2016.03.005
Saulnier, L., Restagno, F., Delacotte, J., Langevin, D., & Rio, E. (2011). What is the mechanism of soap film entrainment ? Langmuir, 27, 13406–13409.
Delacotte, J., Montel, L., Restagno, F., Scheid, B., Dollet, B., Stone, H. A., Langevin, D., & Rio, E. (2012). Plate coating : influence of concentrated surfactants on the film thickness. Langmuir, 28, 3821?3830.
Delacotte, J., Rio, E., Restagno, F., Uzum, C., Von, K., R., & Langevin, D. (2010). Viscosity of Polyelectrolytes Solutions in Nanofilms. Langmuir, 26, 7819–7823.
Scheid, B., Delacotte, J., Dollet, B., Rio, E., Restagno, F., Van, N., E. A., Cantat, I., Langevin, D., & Stone, H. A. (2010). The role of surface rheology in liquid film formation. Europhys. Lett., 90, 24002.
Barraud, T., Restagno, F., Devisme, S., Creton, C., & Léger, L. (2012). Formation of diblock copolymers at pp/pa(6) interfaces and their role in local crystalline organization under fast heating and cooling conditions. Polymer, 53(22), 5138–5145.


I will be happy to receive some questions from students, colleagues, journalists concerning my research or my teaching. Do not hesitate to contact me.

Present activities


  • ANR Fricolas Scientific coordinator
  • ANR Encore Scientific coordinator
  • ANR AdhesiPS (Participant)
  • Saint-Gobain contract (with F. Boulogne): Thèse Marie Corpart
  • Saint-Gobain contract (with L. Léger): Post-doc Anastasia Christoulaki

Physics in schools and with public

I am used to give public lectures related to my research activity. Do not hesitate to contact (you can, for exemple, simply send me an email). me for that. Below are two exemples (but I can accomodate it for different students).

Frédéric Restagno doing bubbles for a conference

Physics on TV and on the WEB

Science outreach is an interesting activity. I have chosen in the past to use TV and internet to promote science. You will see below some exemples.