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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 16 of 16 for “"2-ethyl-2-oxazoline"”.
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Size Exclusion Chromatography of Poly(2-ethyl-2-oxazoline) Homopolymers and Poly(ethylene oxide)-b-Poly(2-ethyl-2-oxazoline) Copolymers
… molecular weights and distributions of poly(2-ethyl-2-oxazoline) oligomers and block copolymers as well as poly(2-ethyl-2-oxazoline) were investigated by SEC using multiple detectors. Both a universal calibration method and light scattering were used to determine molecular weights and molecular …
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Characterization of poly(2-ethyl-2-oxazoline) polymer with soft ionization
… was studied by soft ionization. The poly(2-ethyl-2-oxazoline) is an important water-soluble and heat sensitive polymer. The PEtOx has found many commercial applications and has a good potential in pharmaceutical industry.
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Synthesis and Characterization of Poly(2-Ethyl-2-Oxazoline) Functional Prepolymers and Block Copolymers
… and characterization of functional poly(2-ethyl-2-oxazoline) (PEtOx) containing homo- and block copolymers that are potential materials for membrane-based water purification and gas separation, drug delivery, magnetic resonance imaging and tissue engineering applications. The polymerization …
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Synthesis, characterization and properties of epoxide containing block and alternating copolymers
… has been investigated in this research. Poly(ethylene oxide-2-ethyl-2-oxazoline) (PEO) copolymers have been synthesized with poly(ethylene oxide) macroinitiators ranging from O.75K-40K. Monohydroxy functionalized PEO oligomers have been synthesized with potassium tert-butoxide as an initiator …
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Synthesis and Functionalization of Poly(ethylene oxide-b-ethyloxazoline) Diblock Copolymers with Phosphonate Ions
Poly(ethylene oxide) (PEO) and poly(2-ethyl-2-oxazoline) (PEOX) are biocompatible polymers that act as hydrophilic "stealth" drug carriers. As block copolymers, the PEOX group offers a wider variety of functionalization. The goal of this project was to synthesize a poly(ethylene …
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Poly(2-alkyl-2-oxazoline) containing multiphase systems
… is focused on the polymerization of 2-alkyl-2-oxazoline homopolymers and 2-alkyl-2-oxazoline containing copolymers with well-defined structures. In addition, the potential of selected materials as polymer blend compatibilizers was briefly evaluated. The polymerization of 2-alkyl-2-oxazoline was …
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Development and In-Vitro Evaluation of Long Circulating Liposomes for Targeted Delivery of Gemcitabine and Irinotecan in Pancreatic Ductal Adenocarcinoma
… candidate. While surface modification with polyethylene glycol (PEG) conjugates remains the most commonly used technique to develop long circulating liposomes, its shortcomings including but not limited to anaphylatoxin production, platelet activation, immunogenicity, express a need for a better …
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Engineering of poly(2-oxazoline)s for a potential use in biomedical applications
This PhD work is based on the design of poly(2-oxazoline) (POx) hydrogels and nanogels, by chemical or physical cross-linking, aimed to be used for biomedical applications. Nanogels were first prepared in dilute media and in inverse emulsion based on a statistical copolymer made of …
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Synthesis and Characterization of Novel Pol(arylene ethers) for Gas Separation and Water Desalination Membranes
… blended with commercially available poly(2,6-dimethylphenylene oxide)s (PPO) of different molecular weights in a fixed ratio (66/34 wt/wt) and in various ratios of a 22000 g/mol PPO. All the blends were UV crosslinked to minimize plasticization by condensable gases and analyzed for gel fractions, …
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Surface Characterization of Siloxane, Silsesquioxane, and Maleic Anhydride Containing Polymers at Air/Liquid Interfaces
… in blends with polymers such as poly(dimethylsiloxane) (PDMS) and poly(vinylacetate) (PVAc) was explored using surface pressure-area per monomer isotherms (P-A) and BAM. Substantial morphological differences are seen between polymer blends with heptasubstituted trisilanol-POSS and fully …
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Synthesis of Amphiphilic Block Copolymers for Use in Biomedical Applications
… block copolymer systems containing poly(ethylene oxide) (PEO) blocks. The polymer systems were developed for use in biomedical applications. The first of these is a series of poly(ethylene oxide-b-oxazoline) (PEO-b-POX) diblock copolymers for use in the progress towards novel non-viral …
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Self-assembly of cross-linked polymer micelles into complex higher-order aggregates
… is investigated. The formation of poly-2-oxazoline based micelles in aqueous solution and their simultaneous functionalization and cross-linking using thiol-yne chemistry is e.g. presented. By introducing pH responsive thiols in the core of the micelles the influence of charged groups in …
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Stabilization of Submicron Metal Oxide Particles in Aqueous Media
… by measuring the adsorption isotherms of poly(2-ethyl-2-oxazoline), PEOX, poly(ethylene oxide), PEO, poly(vinyl alcohol), PVOH, and poly(ethylene imine), PEI, which was modified such that a 1,3-butanediol substituent replaced its imine hydrogens, on SiO₂, TiO₂, and Al₂O₃. PEOX and PEO, relatively …
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Studies of adsorption and stabilization of silica suspensions using well-defined polymeric dispersants
Solutions of poly(2-ethyl-2-oxazoline) and poly(2-methyl-2-oxazoline) in water and several alcohols were characterized by light scattering and cloud point measurements. The second virial coefficients in water were found to decrease with increasing temperature, reflecting lower critical solution …
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Improving Impact Properties of Novatein through Polymer Blending and Reactive Extrusion
… either elastomeric core-shell particles, polyethylene (PE), or biodegradable polybutylene adipate-co-terephthalate (PBAT) using twin-screw extrusion to allow for sufficient mixing and residence time for chemical interactions or reactions to form. Materials were characterized for mechanical …
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Processing Extrudable Sheets using Decoloured Bloodmeal
… anhydride grafted PLA (PLA-g-IA), poly (2-ethyl-2-oxazoline) (PEOX) and poly (phenyl isocyanate)-co-formaldehyde (pMDI). Compatibilizing DBT/PLA blend with PEOX or PLA-g-IA was relatively straightforward, while using dual compatibilizer (PEOX and pMDI) required the addition of …