Now showing items 1-12 of 12

    • Active Surfaces and Interfaces of Soft Materials 

      Wang, Qiming (2014)
      A variety of intriguing surface patterns have been observed on developing natural systems, ranging from corrugated surface of white blood cells at nanometer scales to wrinkled dog skins at millimeter scales. To mimetically ...
    • Controlling and Exploiting Spiropyran-based Mechanochromism 

      Barbee, Meredith Hyatt (2019)
      When mechanical force is applied to synthetic materials, polymer chains becomehighly strained, leading to bond scission and ultimately material failure. Over the lastdecade or so, work in the field of polymer mechanochemistry ...
    • Covalent mechanochemistry of four-membered carbocycles 

      Bowser, Brandon (2021)
      The development of multi-mechanophore polymers (MMPs) has empowered new methodologies for observing and quantifying mechanochemical transformations. Previously developed techniques such as single-molecule force spectroscopy ...
    • From Molecular to Macroscopic Mechanochemical Responses 

      Zhang, Yudi (2020)
      The key concept of polymer mechanochemistry is the rational design of mechanophores. When incorporated into polymeric materials, mechanophores can be used to produce strain-dependent covalent chemical responses, including ...
    • Intrinsically Disordered Protein Polymer Libraries as Tools to Understand Protein Hydrophobicity 

      Tang, Nicholas Chen (2019)
      Intrinsically disordered protein polymers (IDPPs) are repetitive biopolymers that, when enriched with prolines, glycines, and aliphatic amino acids, have observable lower critical solution temperature (LCST) phase transition ...
    • Mechanochemistry for Active Materials and Devices 

      Gossweiler, Gregory Robert (2016)
      The coupling of mechanical stress fields in polymers to covalent chemistry (polymer mechanochemistry) has provided access to previously unattainable chemical reactions and polymer transformations. In the bulk, mechanochemical ...
    • Metal-Ligand Interactions in Stimuli Responsive Molecules 

      Hall, Kacey (2018)
      The ability to control changes in physical and chemical properties has allowed stimuli responsive molecules to be used in a variety of applications. Incorporating metals into stimuli responsive molecules introduces properties ...
    • Molecular-Level Engineering of Stress-Responsive Materials 

      Lin, Yangju (2020)
      The insertion of force-sensitive motifs (mechanophores) into polymer backbones provides a mechanism to induce forbidden reactions, stabilize transition state, and build intrinsic stress-responsive materials. Although polymer ...
    • Polymer Remodeling Enabled by Covalent Mechanochemistry 

      Ramirez, Ashley Lauren Black (2013)
      Material failure is a ubiquitous problem, and it is known that materials fail at much lower stresses than the theoretical maximum calculated from the number and strength of the individual bonds along the material cross-section. ...
    • Polysequence Nanomaterials for Immunomodulation 

      Votaw, Nicole Lee (2021)
      Peptide-based vaccines have received growing interest due to their specificity and ability to limit off-target effects, and they are currently being explored toward a variety of infectious diseases and therapeutic targets. ...
    • Probing Mechanical Activation of Covalent Chemistry in Crosslinked Polymer Gels 

      Wang, Yifei (2013)
      Toughness, the measure of how much energy a material can absorb before rupture, is an important property of materials. It has been demonstrated that the toughness of a single polymer chain of <italic>gem</italic>-dihaloc...
    • Structure Activity Relationships in the Fracture of Hybrid Covalent/Metallosupramolecular Organogels 

      Hawk, Jennifer Lee (2014)
      Hybrid polymeric networks constructed using both covalent and reversible cross-links have been shown to be effective in preventing fracture and ultimately failure in polymeric materials. The prevention of failure has been ...