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 “"hydrophobic polymers"”.
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Direct Force Measurement between Surfaces Coated with Hydrophobic Polymers in Aqueous Solutions and the Separation of Mixed Plastics by Flotation
… process is based on rendering a selected mineral hydrophobic using an appropriate hydrophobizing reagent (collector), so that it can selectively attach onto the surfaces of a rising stream of air bubbles. Thus, controlling the hydrophobicity of the minerals to be separated from each other is of …
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Characterization of Hydrophobically Modified Titanium Dioxide Polylactic Acid Nanocomposite Films for Food Packaging Applications
… between hydrophilic TiO2 nanoparticles and hydrophobic polymers such as polylactic acid (PLA) causes problems due to the tendency of TiO2 nanoparticles (TiO2) to agglomerate and form large clusters. A surface modification of TiO2 with long chain fatty acid may improve the compatibility …
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Fabrication and characterization of cellulose nanocrystal enhanced sustainable polymer nanocomposites through surface chemistry and processing
… CNCs is to overcome their low dispersibility in hydrophobic polymers. In the present work, several approaches are utilized to improve the interfacial compatibility and overall performance of CNC/epoxy and CNC/polyamide nanocomposite.</p> <p>For a two-part epoxy system, a novel approach was taken …
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Rapid, Efficient and Versatile Strategies for Functionally Sophisticated Polymers and Nanoparticles: Degradable Polyphosphoesters and Anisotropic Distribution of Chemical Functionalities
… of chemical functionalities, three degradable polymers synthesized by organocatalyzed ring-opening polymerizations, and two polyphosphoester-based nanoparticle systems for various biomedical applications.</p><p>Inspired by the many hierarchical assembly processes that afford complex materials …
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Molecular engineering of gold nanorod surfaces: towards improved physical properties and understanding nanoparticle-cell interactions
… CTAB molecules in the bilayer are held via weak hydrophobic forces and thus tend to desorb resulting in nanorods aggregation and toxicity to cultured cells. Herein, three surface-engineering approaches to enhance the colloidal physical stability and biocompatibility of gold nanorods have been …
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Synthesis and application of specifically sulfated carbohydrates containing methacrylate functionality
… have proven to be important biomaterials. Hydrophobic polymers based on methyl methacrylate as well as hydrophilic polymers based on polysaccharides have been used as matrix-forming materials for tablets. A number of procedures for preparation of polysulfated carbohydrate derivatives have …
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Wood cell wall modification with hydrophobic molecules
… that for some species results in an insertion of hydrophobic chemical substances into the cell walls of already dead wood cells, In the first part of this thesis a chemistry to modify wood cell walls was used, which was inspired by the natural process of heartwood formation. Commercially available …
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Upgrading biomass by hydrothermal and chemical conditioning
… and converts it to a homogenized, friable, hydrophobic, and, mass and energy densified HTC biochar similar to lignite coal. Subcritical water, the temperature between 180-280 °C has ionic strength much higher than water under ambient condition. Hemicellulose hydrolysis occurs at temperatures …