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 8 of 8 for “"kinetic arrest"”.
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Structure, slow dynamics, kinetic arrest, and massively reconfigurable assembly in colloidal suspensions
… through 5 focus predominantly on slow dynamics, kinetic arrest and non-equilibrium soft solid properties and their unique applications. In Chapter 2 we explore the subtle interplay between colloidal liquid-gas macrophase separation, percolation, kinetic arrest, and space spanning gelation of …
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Improved models of colloidal gels : kinetic arrest relaxation dynamics, structural breakdown and the role of hydrodynamic interactions
… interactions in determining the conditions for kinetic arrest of attractive dispersions. The collective dynamics enabled by fluid mechanics are shown to enhance coagulation leading to a shift in the gel boundary to lower strengths of attraction and lower particle concentrations when compared to …
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Chiral self-assembly of cellulose nanocrystals for photonic films
… chirality across length-scales. Second, how does kinetic arrest influence the visual appearance of CNC films? It is well-known that drying of CNC suspensions traps the systems in a non-equilibrium configuration, but the mechanism of kinetic arrest (whether colloidal gelation or glass transition) …
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Theory of slow coupled translational-rotational dynamics and viscoelasticity of nonspherical particle suspensions
The naïve mode coupling theory (NMCT) for ideal kinetic arrest and the nonlinear Langevin equation (NLE) theory of activated single-particle barrier hopping dynamics are generalized to describe coupled center-of-mass (CM) translational and rotational motions of uniaxial particles within the …
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Microscopic characterization of macroscopic colloidal gel rheology
… the structural disorder of the network due to kinetic arrest of the attractive particles call for comprehensive investigation of colloidal gel rheology. In this thesis, we develop a better physical understanding of key rheological characteristics of a model colloidal gel via optical microscopy …
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Synthesis and rheology of pH-responsive particles with shape anisotropy
… fraction and pH. HDC particles display a high kinetic arrest volume fraction (ϕg>0.5) with small linear elastic modulus (G0’*) above ϕg at different pH conditions and ionic strengths up to 0.5M proving again that the particles experience repulsive or weakly-attractive conditions. The CDC …
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Glassy viscoelasticity of dense suspensions of soft colloids and structure & miscibility of soft filler polymer nanocomposites
… packing disorder due to particle overlap. A kinetic arrest diagram is constructed, and its qualitative features agree with the dynamic crossover (MCT) analog. The isothermal dynamic fragility varies over a wide range, and soft particles are predicted to behave as strong glasses. The highly …
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Cellulose photonics: designing functionality and optical appearance of natural materials
Cellulose is the most abundant biopolymer on Earth as it is found in every plant cell wall; therefore, it represents one of the most promising natural resources for the fabrication of sustainable materials. In plants, cellulose is mainly used for structural integrity, however, some species organise …