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 10 of 10 for “"star polymer"”.
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Solution and Adsorption Characterization of Novel Water-Soluble Ionic Block Copolymers for Stabilization of Magnetite Nanoparticles
There is a need for multifunctional polymer-particle complexes for use in biomedical applications such as for drug delivery or as MRI contrast agents where composition and stability are essential for the complexes to function. This work outlines a general methodology for rationally designing …
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Biocompatible polymeric nanoparticles for drug/DNA delivery using biologically friendly polymerisation processes
… explores the synthesis of several different polymeric nanostructures using reversible addition-fragmentation chain transfer (RAFT) polymerisation in both aqueous and ethanolic solutions.<br/><br/>A preface entailing an abstract, contents, common abbreviations and details of where this work …
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Development of novel polymeric nanoparticles with tailored architectures and functionalities/
… nanoparticle architecture called a brush-arm star polymer (BASP), which has polymer brushes on the periphery shielding the core. Such nanoparticles were synthesized by, first, "graft-through" ring-opening metathesis polymerization (ROMP) of a norbornene-macromonomer to create the brush-arms, …
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Design of PolyMOCs and the synthesis of crosslinkers for the BASP platform
… integration of metal-organic cages (MOCs) into polymers were explored. The first strategy creates Block Co-PolyMOCs (BCPMOCs), which feature the integration of MOCs into block copolymers (BCPs). In the first assembly step, BCPs functionalized with a bispyridyl ligand on the chain end undergo Pd …
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Design and development of Brush-Arm Star Polymers for applications in drug delivery
… thesis describes the development of a unique polymer architecture - the Brush-Arm Star Polymer (BASP) - that represents a modular, customizable therapeutic platform with potential in drug delivery. In this thesis, BASPs are synthesized by ring opening metathesis polymerization (ROMP) of a …
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Synthesis and Characterization of Responsive Poly(Alkyl Methacrylate) Topologies
… synthesized and utilized in the synthesis of star-shaped polymers. Star polymer coupling was achieved by reacting the living poly(alkyl methacrylate) using 2,5-dimethyl-2,5-hexanediol dimethacrylate (DHDMA) or dicumyl dimethacrylate (DCDMA). These starshaped polymers were cleaved under …
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Rheological inferences with uncertainty quantification
… melt and its blend with a three-arm symmetric star polymer (5 weight % of star by composition). We show that the simplest model for entangled polymer melts i.e. the Doi-Edwards reptation model is not able to capture the MAOS data of our systems. We then proceed to fit various other …
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Self-assembly of cross-linked polymer micelles into complex higher-order aggregates
The creation of complex polymer structures has been one of the major research topics over the last couple of decades. This work deals with the synthesis of (block co-)polymers, the creation of complex and stimuli-responsive aggregates by self-assembly, and the cross-linking of these structures. …
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Living Polymerization for the Introduction of Tailored Hydrogen Bonding
… in living anionic polymerization of isoprene was used to yield well-defined chain end functional macromolecules. Using both initiating systems, polymers with good molar mass control and narrow molar mass distributions were obtained and well-defined chain end …
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Star Polymers and Dendrimers Based on Highly Functional Resorcin- and Pyrogallolarenes
… were used as platform for the synthesis of novel star polymers and dendritic structures. The objectives of this work can be portrayed under the following points: First: Synthesis and modification of calix[4]resorcin- and calix[4]pyrogallolarenes with a varying number and varying type of functional …