The basic research program of the Polymer Physics Section involves study of the molecular basis for the mechanical, electrical, optical, and thermodynamic properties of materials and the development of novel polymeric systems. Current areas of focus include relaxation properties and rheology of polymers and their blends, liquid crystalline materials, and molecular liquids.

Selected Publications

2008 Roland, C. M., R. B. Bogoslovov, R. Casalini, A. R. Ellis, S. Bair, S. J. Rzoska, K. Czuprynski, and S. Urban, "Thermodynamic Scaling and the Characteristic Relaxation Time at the Phase Transition of Liquid Crystals", Journal of Chemical Physics, vol. 128, issue 22, 2008.
2008 Bogoslovov, R. B., C. M. Roland, A. R. Ellis, A. M. Randall, and C. G. Robertson, "Effect of Silica Nanoparticles on the Local Segmental Dynamics in Polyvinylacetate", Macromolecules, vol. 41, issue 4, pp. 1289-1296, 2008.
2008 Bogoslovov, R. B., C. M. Roland, J. Czub, and S. Urban, "Interaction Potential In Nematogenic 6CHBT", Journal of Physical Chemistry B, vol. 112, issue 50, pp. 16008-16011, 2008.
2008 Roland, C. M., "Characteristic Relaxation Times and Their Invariance to Thermodynamic Conditions", Soft Matter, vol. 4, issue 12, pp. 2316-2322, 2008.
2008 Ngai, K. L., D. Prevosto, S. Capaccioli, and C. M. Roland, "Guides to Solving the Glass Transition Problem", Journal of Physics: Condensed Matter, vol. 20, 2008.
2008 Pathak, J. A., M. E. Twigg, K. E. Nugent, D. L. Ho, E. K. Lin, P. H. Mott, C. G. Robertson, M. K. Vukmir, T H. Epps, III, and C. M. Roland, "Structure Evolution in a Polyurea Segmented Block Copolymer due to Mechanical Deformation", Macromolecules, vol. 41, pp. 7543-7548, 2008.
2007 Bogoslovov, R. B., and C. M. Roland, "Viscoelastic Effects on the Free Reaction of Rubber", Journal of Applied Physics, vol. 102, 2007.
2007 Roland, C. M., and R. Casalini, "Invariance of the Local Segmental Relaxation Dispersion in Polycyclohexylmethacrylate / Poly- Α-methylstyrene Blends", Journal of Non-Crystalline Solids, vol. 353, 2007.
2007 Casalini, R., and C. M. Roland, "An Equation for the Description of Volume and Temperature Dependences of the Dynamics of Supercooled Liquids and Polymer Melts", Journal of Non-Crystalline Solids, vol. 353, issue 41-43, pp. 3936-3939, 2007.
2007 Casalini, R., and C. M. Roland, "Effect of Entropy on the Dynamics of Supercooled Liquids: New Results from High Pressure Data", Philosophical Magazine, vol. 87, 2007.
2007 Robertson, C. G., R. B. Bogoslovov, and C. M. Roland, "The Effect of Structural Arrest on Poisson’s Ratio in Filler-Reinforced Elastomers", Physical Review E, vol. 75, 2007.
2007 Schroeder, M. J., K. L. Ngai, and C. M. Roland, "The Nearly Constant Loss, Johari-Goldstein B-Relaxation, and x-Relaxation of 1,4 Polybutadiene", Journal of Polymer Science: Part B: Polymer Physics, vol. 45, pp. 342-348, 2007.
2007 Roland, C. M., M. E. Twigg, Y. Vu, and P. H. Mott, "High Strain Rate Mechanical Behavior of Polyurea", Polymer, vol. 48, pp. 574-578, 2007.
2007 Roland, C. M., and R. Casalini, "Dynamics of Polycyclohexylmethacrylate, Neat and in Blends with Poly a-methylstyrene", Macromolecules, vol. 40, pp. 3631-3639, 2007.
2007 Casalini, R., C. M. Roland, and S. Capaccioli, "Effect of Chain Connectivity on Fragility and Thermodynamic Scaling in Poly(methylmethacrylate)", Journal of Chemical Physics, vol. 126, 2007.
2007 Bogoslovov, R. B., C. M. Roland, and R. M. Gamache, "Impact-induced Glass Transition in Elastomeric Coatings", Applied Physics Letters, vol. 90, 2007.
2007 Roland, C. M., and R. Casalini, "Entropy Basis for the Thermodynamic Scaling of the Dynamics of o-terphenyl", Journal of Physics: Condensed Matter, vol. 19, issue 20, 2007.
2007 Kaminski, K., S. Maslanka, J. Ziolo, M. Paluch, K. J. McGrath, and C. M. Roland, "Dielectric Relaxation of Α-tocopherol acetate (vitamin E)", Physical Review E, vol. 75, issue 1, 2007.
2007 Bair, S., C. M. Roland, and R. Casalini, "Fragility and the Dynamic Crossover in Lubricants", Institution of Mechanical Engineers Part J Journal of Engineering Tribology, vol. 221, pp. 801-811, 2007.
2007 Roland, C. M., and R. Casalini, "Effect of Hydrostatic Pressure on the Viscoelastic Response of Polyurea", Polymer, vol. 48, issue 19, pp. 5747-5752, 2007.
2005 Roland, C. M., D. F. Roland, J. Wang, and R. Casalini, "Isobaric and Isochoric Fragilities and the Influence of Volume on the Temperature Dependence of Local Segmental Relaxation in Polyvinylethylene Networks", Journal of Chemical Physics, vol. 123, issue 20, 2005.