Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"stimuli responsiveness"”.
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Polymerized ionic liquids by condensation polymerization: Stimuli responsive polyurethane gels and dispersions
… been found to exhibit an anion-exchange induced stimuli responsiveness. This thesis explores incorporation of ionic liquids in polyurethane (PU) polymers to make PIL PU gels and dispersions through condensation polymerization. PIL gels are synthesized through a single-pot approach that show …
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Control and Prediction of Polymer Network Structure and Connectivity for Sustainability, Stimuli-Response, and Catalytic Function
… related to sustainability, catalysis, and stimuli-responsiveness. In the first half, we leverage well-known supramolecular self-assembly of PdxL2x-type metal-organic cages to form robust gels. Using isomeric chemistry with distinct connectivity, we fabricate gels with either expanded …
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Functional particles for controlled release and cell surface engineering
… a functional polymersome system by implementing stimuli-responsiveness and surface modification to overcome various biological challenges. Chapter 2 demonstrates a stimuli-responsive particle with an enhanced release profile as a new formulation pathway to assemble the hemostatic fibrin-based …
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Hierarchical control of hydrogel dynamics via choice of ligand chemistry
… mechanical properties, such as self-assembly, stimuli-responsiveness, and the ability to self-heal. Recent efforts have looked into expanding the prevailing knowledge of metal ion-coordination chemistry to nanoparticle-ligand interactions, with the goal to further provide rational control over …
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Advanced transfer printing methods and their applications to functional surfaces
… or superhydrophobicity paired with external stimuli responsiveness are invented. Lastly, switchable underwater adhesive properties of a shape memory polymer that is one of common polymeric stamp materials are investigated. Furthermore, these advances in transfer printing are explored to …
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Stimuli-Responsive Metal–Organic Cages
… systems are capable of responding to diverse stimuli, then processing the signals and transferring them into potential changes in structures and/or properties. Studying the stimuli-responsiveness in metal–organic cages provides a platform to mimic biological systems and gain insights into the …
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Layer-by-layer assembly in confined geometries
… of novel functionalities to a surface including stimuli-responsiveness, reversible switching of the gap thickness, manipulation of the sign and/or the density of the surface charge, chemical functionality and wettability of a surface. Polymer/polymer, polymer/nanoparticle, and …
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Stimuli-responsive polymer nanotube arrays
… than their bulk counterparts. However, the stimuli-responsiveness of nanotube arrays has seldom been explored, mostly due to the inertness of the materials typically utilized to create them. Here I introduce a new concept of designing and synthesizing surface-bound stimuli-responsive polymer …
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Aqueous Self-Assembly with Cucurbit[n]urils: From Solution to Emulsion
… supramolecular polymers that were multi-stimuli responsive. However, the polymers precipitated from solution at high concentrations rather than form a cross-linked network, due to competing intra-chain cyclisation and the limited water solubility of CB[8]. By confining these polymers to …
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Investigating New Guaiazulenes and Diketopyrropyrroles for Photonic Applications
… exhibit large dipolar character, coupled with stimuli-responsive behavior in acidic environments. Additionally, the non-toxic nature and the accompanying eco-friendly feature of some azulenes, namely guaiazulene, may set the stage to further explore a more "green" route towards photonic and …
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Functionalized hydrogel systems for molecular sensing and transport
… of many outstanding properties, including responsiveness, elasticity, transparency, porosity, high water content, biocompatibility, and the ability to immobilize functional species makes hydrogels attractive multifunctional materials for a broad range of applications. This dissertation …