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 12 of 12 for “"interpenetrating networks"”.
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Mixed ion and electron conducting polymer composite membranes for artificial photosynthesis
… water electrolysis. The membranes were semi-interpenetrating networks of crosslinked poly(vinyl alcohol) (PVA) and a polycation miscible with PVA. It is analogous to aqueous strong base solution. The polycation is a OH- containing polymer; PVA solvates this polycation and facilitates the ion …
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One pot synthesis of metal, carbides and polymeric aerogels
… (RF) aerogels. Here we have developed interpenetrating networks of RF and metal oxide (MOx) aerogels that upon pyrolysis undergo smelting yielding metal, or carbide aerogels, depending on the chemical identity of M: oxides of Fe, Co, Ni, Sn, Cu yield metal aerogels, refractory Cr, Ti, …
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Aerogels for energy storage applications: From shape memory materials to thermites and explosives
… (Fe(0)) aerogels via carbothermal reduction of interpenetrating networks of polybenzoxazine and iron oxide nanoparticles. Excess carbon was removed oxidatively at 600 ⁰C under flowing air and the oxides of Fe(0) thus produced in the oxidative step were reduced back to Fe(0) with H<sub>2</sub> at …
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Fabrication and light scattering study of multi-responsive nanostructured hydrogels and water-soluble polymers.
… (PAAc) and poly(N-isopropylacrylamide) (PNIPAM) interpenetrating networks were synthesized by 2-step method with first preparing PNIPAM microgel and then polymerizing acrylic acid that interpenetrates into the PNIPAM network. The semi-dilute aqueous solutions of the PNIPAM-PAAc IPN microgels …
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Freeze-Casting For Facile Synthesis Of Novel Porous Materials
… dispersed phase results in the formation of two interpenetrating networks upon complete solidification of the water - one made from ice, the other comprised of the rejected colloid and/or solute. Removal of the ice via freeze-drying produces a structure made from the excluded phase, with …
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A Multicomponent Bioactive Tissue-Engineered Blood Vessel: Fabrication, Mechanical Evaluation and Biological Evaluation with Physiological-Relevant Conditions
… scaffolds by programming the deposition of interpenetrating networks of degradable polymers poly(ε-caprolactone) and poly(lactide-co-glycolide) acid in tailored proportion. Fluorescent model molecules, drug and growth factors were embedded in the polymeric fibers with different techniques …
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Control of Network Topology in Photopolymer Networks for Additive Manufacturing
… (RAFT), and their applications in photopolymer networks to improve material properties and introduce novel functional materials to additive manufacturing. Chapter 2. In this work, we incorporate a RAFT agent into a crosslinker to make chain-transferring crosslinkers, or Transferinkers, and …
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Stable Polymer Micelle Systems as Anti-cancer Drug Delivery Carriers
… stable polymeric micelle system by polymerizing interpenetrating networks inside their micelle cores. Tetronic micelle systems treated by this process still were not stable at concentrations below their critical micelle concentration (CMC). Poly(ethylene …
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Self-healing materials and multinozzle printheads with embedded microvascular networks
Microvascular networks are pervasive in biological systems, assisting in the repair of tissue damage, regulation of temperature, and efficient distribution of nutrients. Emulating these functional attributes in engineering contexts such as self-healing materials, microfluidic temperature …
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The Self-Organisation of Biological Soft matter Systems at Different Length-scales
… soft materials composed of two discrete but interpenetrating networks, both of which contribute to the physical and mechanical properties of the material. A bigel network was formed from two proteins, BSA and gelatin. Thorough control of the solution conditions and kinetics ensured that the …
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Softmatter tribology: Understanding the microstructure to property relationships of hydrogel-like materials
… and polyacrylamide hydrogels as independent, interpenetrating networks revealed the design limitations of achieving high strength and high lubricity, simultaneously. Lastly, the novel experimental study on the gel-like surface of the articular cartilage was conducted as a direct application of …
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Procedural generation of vascular networks for tissue engineering
… package to automatically generate these channel networks subject to manufacturability and cellular survival constraints. This thesis contributes a software package and associated design philosophy for generating vasculature specifically for use in tissue engineering. We first review the current …