Professor Joseph Keddie

Professor of Soft Matter Physics
MS, PhD (Cornell University, USA); BA, BS (Alfred University, USA)


Areas of specialism

Soft matter physics, with a special interest in waterborne colloids and polymer thin films; Techniques to probe soft matter include NMR profiling and diffusometry, ellipsometry, and ion beam analysis, along with a range of microscopies.; Applications of colloids in adhesives, coatings and nanocomposites

University roles and responsibilities

  • Senator representing the Faculty of Engineering and Physical Sciences
  • Senior Tutor for Professional Training for Physics

My qualifications

PhD in Materials Science and Engineering
Cornell University (USA)
MS in Materials Science and Engineering
Cornell University (USA)
BS in Ceramic Engineering
BA in English
Alfred University (USA)

Business, industry and community links

Chemicals, polymers, and coatings industry
Consultant to industry on film formation and applications of polymer colloids; presenter of workshops for training


Research interests

Research collaborations

Indicators of esteem

My teaching

My publications


  • Our paper in Physical Review Letters on "Dynamic Stratification in Drying Films of Colloidal Mixtures," has an Altmetric score of 689 (in the 99th percentile for publications of a similar age). We report our discovery a mechanism for stratification in which small colloidal particles accumulate on a layer of larger particles.


  • T. Wang, P. J. Colver, S. A. F. Bon, and J. L. Keddie, “Synergistic Effects between Clay and a Soft Polymer in a Supracolloidal Structure Leading to Increased Tack Energy in Pressure-Sensitive Adhesives,” Soft Matter (2009) 5, 3842 (Cover Article)

  • E. Canetta, J. Marchal, C.H. Lei, F. Deplace, A. König, C. Creton, K. Ouzineb, and J.L. Keddie, “A Comparison of Tackified, Miniemulsion Core-Shell Acrylic Latex Films with Corresponding Particle-Blend Films: Structure-Property Relationships,” Langmuir (2009) 25, 11021-11031

  • A. Intaniwet, C. A. Mills, M. Shkunov, H. Thiem, J. L. Keddie, and P. J. Sellin, “Characterization of thick film poly(triarylamine) semiconductor diodes for direct X-ray detection,”J. Appl. Phys. (2009) 106, 064513 (7 pages)

  • N. A. Nikonenko, I. A. Bushnak, and J. L. Keddie, “Spectroscopic Ellipsometry of Mucin Layers on an Amphiphilic Diblock Copolymer Surface,” Applied Spectroscopy (2009) 63, 889-898.

  • Christopher A. Mills, Akarin Intaniwet, Maxim Shkunov, Joseph L. Keddie, and Paul J. Sellin “Flexible radiation dosimeters incorporating semiconducting polymer thick films,”Proc. of SPIE(2009)Vol. 7449, 74491I-7

  • Melanie Bradley, Dan Liu, Joseph L. Keddie, Brian Vincent, and Gary Burnett , “The Uptake and Release of Cationic Surfactant from Polyampholyte Microgel Particles in Dispersion and as an Adsorbed Monolayer,” Langmuir (2009) 25, 9677-9683

  • F. Deplace, M.A. Rabjohns, T. Yamaguchi, A.B. Foster, C. Carelli, C.-H. Lei, K. Ouzineb, J.L. Keddie, P.A. Lovell and C. Creton, “Deformation and adhesion of a soft-soft nanocomposite designed with structured polymer colloid particles,” Soft Matter (2009) 5, 1440 - 1447.

  • D. Liu, T. Wang, J.L. Keddie, “Protein nanopatterning on self-organized PS-b-PI thin film templates,” Langmuir (2009) 25, 4526-4534.

  • T. Wang, E. Canetta, T. G. Weerakkody, J. L. Keddie, “pH-dependence of the properties of waterborne pressure-sensitive adhesives containing acrylic acid,” ACS Applied Materials and Interfaces (2009) 1, 631-639.

  • P. Ekanayake, P.J. McDonald and J.L. Keddie, “An Experimental Test of the Scaling Prediction for the Spatial Distribution of Water during the Drying of Colloidal Films,” European Physical Journal - Special Topics (2009) 166, 21-27

  • T. Wang and J.L. Keddie, “Design and fabrication of colloidal polymer nanocomposites,” Adv. Coll. Interf. Sci. 147-148 (2009) 319-332.

  • T. Wang, A.B. Dalton and J. L. Keddie, “Importance of molecular friction in a soft polymer-nanotube nanocomposite,” Macromolecules (2008) 41, 7656 - 7661.

  • T. Wang, C.-H. Lei, D. Liu, M. Manea, J. M. Asua, C. Creton, A. B. Dalton and J. L. Keddie, “A Molecular Mechanism for Toughening and Strengthening Waterborne Nanocomposites,” Advanced Materials 20 (2008) 90.

  • A. M. König, T. G. Weerakkody, J. L. Keddie, D. Johannsmann, “Heterogeneous Drying of Colloidal Polymer Films: Dependence on Added Salt,” Langmuir (2008) 24, 7580-7589.

  • R. Rodríguez, C. de las Heras Alarcón, P. Ekanayake, P. J. McDonald, J. L. Keddie, M. J. Barandiaran, J. M. Asua “The Correlation of Silicone Incorporation into Hybrid Acrylic Coatings with the Resulting Hydrophobic and Thermal Properties,” Macromolecules, 41, 8537-46.

  • V. R. Gundabala, C.-H. Lei, K. Ouzineb, O. Dupont, J. L. Keddie, and A. F. Routh, “Lateral surface non-uniformities in drying latex films,” AIChE J. (2008) 54, 3092-3105.

  • T. Wang et al., "Waterborne, Nanocomposite Pressure-Sensitive Adhesives with High Tack Energy, Optical Transparency, and Electrical Conductivity," Advanced Materials, 18 (2006) pp 2730-34.

  • C. Lei, K. Ouzineb, O. Dupont and J.L. Keddie, "Probing Particle Structure in Waterborne Pressure-Sensitive Adhesives with Atomic Force Microscopy," J. Coll. Interf. Science (2007) 307 56-63.

  • V. Nerapusri, J.L. Keddie, B. Vincent and I.A. Bushnak, "Swellig and deswelling of adsorbed microgel monolayers triggered by changes in temperature, pH, and electrolyte concentration," Langmuir 22 (2006) 5036-41.

  • J. Mallegol et al., "Skin Development during the Film Formation of Waterborne Acrylic Pressure-Sensitive Adhesives Containing Tackifying Resin," J. Adhesion 82(2006)217-238.

  • H. Richardson, I. Lopez-Garcia M. Sferrazza, and J.L. Keddie, "Thickness dependence of structural relaxation in spin-cast, glassy polymer thin films," Physical Review E, 70 (2004) 051805.

  • B. Lincoln, T.R.E. Simpson, J.L. Keddie, "Water Vapor Sorption by the Pedal Mucus Trail of a Land Snail", Colloids and Surfaces B: Biointerfaces 33 (2004) 251-258.

  • T.R.E. Simpson, Z. Tabatabaian, C. Jeynes, B. Parbhoo, and J.L. Keddie, "The Influence of Interfaces on the Rates of Crosslinking in Poly(Dimethyl Siloxane) Coatings," Journal of Polymer Science: Polymer Chemistry, 42 (2004) 1421-1431.

  • H. Richardson, C. Carelli, J.L. Keddie and M. Sferrazza, "Structural Relaxation of Spin-Cast Glassy Polymer Thin Films as a Possible Factor in Dewetting", European Physical Journal E: Soft Matter, 12 (2003) 437-441.

  • T.R.E. Simpson and J.L. Keddie, "Evidence from Infrared Ellipsometry for Covalent Bonding at a Polymer/Polymer Interface with Relevance to 'Lock-Up' in Pressure-Sensitive Adhesive Laminates", The Journal of Adhesion, 79 (2003) 1207-18.

  • T. Simpson, B. Parbhoo, and J.L. Keddie, "The Dependence of the Rate of Crosslinking in Poly(Dimethyl Siloxane) on the Thickness of Coatings", Polymer, 44 (2003) 4829-38.

  • E. Aramendia, J. Mallegol, C. Jeynes, M.J. Barandiaran, J.L. Keddie and J. M. Asua, "Distribution of Surfactants Near Acrylic Latex Film Surfaces: A Comparison of Conventional and Reactive Surfactants (Surfmers)," Langmuir, 19 (2003) 3212-21.

  • J. Mallegol, J.-P. Gorce, O. Dupont, C. Jeynes, P.J. McDonald, and J.L. Keddie, "Origins and Effects of a Surfactant Excess at the Surface of Waterborne Acrylic Pressure-Sensitive Adhesives," Langmuir, 18 (2002) pp. 4478-87

  • J.-P. Gorce, P.J. McDonald and J.L. Keddie, "Vertical Water Distribution during the Drying of Polymer Films Formed from Emulsions", Eur Phys J. E., 8 (2002) pp. 421-429.

  • Y. Zhao, J.D. Carey, N. Knoops, D. Maetens, I. Hopkinson, J.N. Hay and J.L. Keddie, "Inhibition of the Surface Levelling of Thermosetting Polyester Powder Coatings Caused by Surface Tension Gradients," Journal of Materials Science, 37 (2002) pp. 4759-68.

  • J.L. Keddie, "Structural analysis of organic interfacial layers by ellipsometry," Current Opinion in Colloid and Interface Science, 6 (2001), pp. 102-110

  • J. Mallegol, O. Dupont, J.L. Keddie, "Obtaining and Interpreting Images of Acrylic Pressure-Sensitive Adhesives by Tapping-Mode Atomic Force Microscopy," Langmuir, 17 (2001) pp. 7022-31

Additional publications