Robert A. Riggleman

Principal Investigator

Google Scholar
Robert A. Riggleman
Email
rrigobfuscate@seas.upenn.edu

Associate Professor of Chemical and Biomolecular Engineering

Education:

  • B.S. Engineering, University of South Carolina, 2002
  • Ph.D. Chemical and Biological Engineering, University of Wisconsin-Madison, 2007

Postdoctoral training:

  • Chemical and Biological Engineering, University of Wisconsin-Madison, 2007-2008
  • Chemical Engineering, University of California-Santa Barbara, 2009-2010

Publications

  1. Polymer-Wall interactions slow infiltration dynamics in bicontinuous, nanoporous structures
  2. Suppression of macroscopic phase separation in polymer blends confined within the interstitial pores of dense nanoparticle packings
  3. Thermally activated dynamics of annealed glasses near the yielding transition under cyclic shear
  4. Local dynamics and failure of inhomogeneous polymer networks
  5. Effects of Associative Interactions on the Phase Behavior of Complex Coacervates
  6. Predicting failure locations in model end-linked polymer networks
  7. Capillary filling dynamics of polymer melts in a bicontinuous nanoporous scaffold
  8. Identifying microscopic factors that influence ductility in disordered solids
  9. Understanding Creep Suppression Mechanisms in Polymer Nanocomposites through Machine Learning
  10. MATILDA.FT, A mesoscale simulation package for inhomogeneous soft matter
  11. Experimental observations of fractal landscape dynamics in a dense emulsion
  12. The effect of monomer polarizability on the stability and salt partitioning in model coacervates
  13. Exploring the relationship between softness and excess entropy in glass-forming systems
  14. Bicontinuous interfacially jammed emulsion gels with nearly uniform sub-micrometer domains via regulated co-solvent removal
  15. Increases in Miscibility of a Binary Polymer Blend Confined within a Nanoparticle Packing
  16. Failure and Mechanical Properties of Glassy Diblock Copolymer Thin Films
  17. Exploring canyons in glassy energy landscapes using metadynamics
  18. Structuro-elasto-plasticity model for large deformation of disordered solids
  19. Percolation of co-continuous domains in tapered copolymer networks
  20. Decoupling the Impact of Entanglements and Mobility on the Failure Properties of Ultrathin Polymer Films
  21. The Role of Intra-molecular Relaxations on the Structure and Stability of vapor-Deposited Glasses
  22. Effect of Graft Length and Matrix Molecular Weight on String Assembly of Aligned Nanoplates in a Lamellar Diblock Copolymer
  23. Predicting the unobserved. A statistical mechanics framework for non-equilibrium material response with quantified uncertainty
  24. Role of Local Structure in the Enhanced Dynamics of Deformed Glasses
  25. Fracture of model end-linked networks
  26. Thickness-Dependent Mechanical Failure in Thin Films of Glassy Polymer Bidisperse Blends
  27. Lewis Adduct-Induced Phase Transitions in Polymer/Solvent Mixtures
  28. Load-bearing entanglements in polymer glasses
  29. Investigating Nanoparticle Organization in Polymer Matrices during Reaction-Induced Phase Transitions and Material Processing
  30. Effect of surface properties and polymer chain length on polymer adsorption in solution
  31. Chain and Segmental Dynamics in Polymer–Nanoparticle Composites with High Nanoparticle Loading
  32. Coarse-Grained Modeling of Polymer Nanocomposites: Field-Theoretic Simulations [Book Chapter]
  33. Conformation and dynamics of ring polymers under symmetric thin film confinement
  34. Dynamic phase transitions in freestanding polymer thin films
  35. Polymer Conformations and Diffusion through a Monolayer of Confining Nanoparticles
  36. Molecular View of Cavitation in Model-Solvated Polymer Networks
  37. Cavitation in Soft Matter
  38. Origin of Mechanical Enhancement in Polymer Nanoparticle (NP) Composites with Ultrahigh NP Loading
  39. Effect of Polymer-Nanoparticle Interactions on Solvent-driven Infiltration of Polymer (SIP) into Nanoparticle Packings: a Molecular Dynamics Study
  40. Experiments and Simulations Probing Local Domain Bulge and String Assembly of Aligned Nanoplates in a Lamellar Diblock Copolymer
  41. Equilibrium Field Theoretic Study of Nanoparticle Interactions in Diblock Copolymer Melts
  42. Increased Polymer Diffusivity in Thin-Film Confinement
  43. Distinguishing failure modes in oligomeric polymer nanopillars
  44. Phase Behavior of Grafted Polymer Nanocomposites from Field-Based Simulations
  45. Identifying structural signatures of shear banding in model polymer nanopillars
  46. Effects of microstructure formation on the stability of vapor-desposited glasses
  47. Polymer Conformations and Dynamics under Confinement with Two Length Scales
  48. Critical Contact Angle to Induce Capillary Rise of Polymers in Nanopores Does Not Depend on Chain Length
  49. Polymer Diffusion Is Fastest at Intermediate Levels of Cylindrical Confinement
  50. Effect of substrate interactions on the glass transition and length-scale of correlated dynamics in ultra-thin molecular glass films
  51. Emerging investigators in materials science 2017-2018
  52. Field-Theoretic Simulations of the Distribution of Nanorods in Diblock Copolymer Thin Films
  53. Structure-property relationships from universal signatures of plasticity in disordered solids
  54. Inverse design of grafted nanoparticles for targeted self-assembly
  55. Comparison of Field-Theoretic Approaches in Predicting Polymer Nanocomposite Phase Behavior
  56. Nanorod Mobility Influences Polymer Diffusion in Polymer Nanocomposites
  57. Perspective: Outstanding theoretical questions in polymer-nanoparticle hybrids
  58. Grafted polymer chains suppress nanoparticle diffusion in athermal polymer melts
  59. Field-theoretic simulations of block copolymer nanocomposites in a constant interfacial tension ensemble
  60. Nanoporous Polymer-Infiltrated Nanoparticle Films with Uniform or Graded Porosity via Undersaturated Capillary Rise Infiltration
  61. Solvent vapor annealing in block copolymer nanocomposite films: a dynamic mean field approach
  62. Long-range correlated dynamics in ultra-thin molecular glass films
  63. Understanding soft glassy materials using an energy landscape approach
  64. Isolating the Effect of Molecular Weight on Ion Transport of Non-Ionic Diblock Copolymer/Ionic Liquid Mixtures
  65. Engineering the Assembly of Gold Nanorods in Polymer Matrices
  66. Dispersion and alignment of nanorods in cylindrical block copolymer thin films
  67. Attraction of Nanoparticles to Tilt Grain Boundaries in Block Copolymers
  68. The dynamics of unentangled polymers during capillary rise infiltration into a nanoparticle packing
  69. Local Polymer Dynamics and Diffusion in Cylindrical Nanoconfinement
  70. Predicting the structure and interfacial activity of diblock brush, mixed brush, and Janus-grafted nanoparticles
  71. Entanglement Reduction and Anisotropic Chain and Primitive Path Conformations in Polymer Melts under Thin Film and Cylindrical Confinement
  72. The distribution of homogeneously grafted nanoparticles in polymer thin films and blends
  73. Understanding Plastic Deformation in Thermal Glasses from Single-Soft-Spot Dynamics
  74. Strain localization in glassy polymers under cylindrical confinement
  75. Size-Controlled Self-Assembly of Superparamagnetic Polymersomes
  76. Field theoretic simulations of polymer nanocomposites
  77. Effect of particle size and grafting density on the mechanical properties of polymer nanocomposites
  78. Influence of Backbone Rigidity on Nanoscale Confinement Effects in Model Glass-Forming Polymers
  79. Evolution of collective motion in a model glass-forming liquid during physical aging
  80. Heterogeneous Segmental Dynamics during Creep and Constant Strain Rate Deformations of Rod-Containing Polymer Nanocomposites
  81. Investigation of the interfacial tension of complex coacervates using field-theoretic simulations
  82. Dynamics and Deformation Response of Rod-Containing Nanocomposites
  83. Influence of Chain Stiffness on Thermal and Mechanical Properties of Polymer Thin Films
  84. Influence of Nanorod Inclusions on Structure and Primitive Path Network of Polymer Nanocomposites at Equilibrium and Under Deformation
  85. Mechanical properties of antiplasticized polymer nanostructures
  86. Field-theoretic simulations in the Gibbs ensemble
  87. Antiplasticization and the elastic properties of glass-forming polymer liquids
  88. Heterogeneous dynamics during deformation of a polymer glass
  89. Entanglement network in nanoparticle reinforced polymers
  90. Fluorinated Quaternary Ammonium Salts as Dissolution Aids for Polar Polymers in Environmentally Benign Supercritical Carbon Dioxide
  91. Deformation-Induced Mobility in Polymer Glasses during Multistep Creep Experiments and Simulations
  92. Dynamics of a Glassy Polymer Nanocomposite during Active Deformation
  93. Nonlinear Creep in a Polymer Glass
  94. Antiplasticization and local elastic constants in trehalose and glycerol mixtures
  95. Molecular plasticity of polymeric glasses in the elastic regime
  96. Free Volume and Finite-Size Effects in a Polymer Glass under Stress
  97. Characterization of the potential energy landscape of an antiplasticized polymer
  98. Tuning polymer melt fragility with antiplasticizer additives
  99. Influence of Confinement on the Fragility of Antiplasticized and Pure Polymer Films