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 18 of 18 for “"dynamic covalent chemistry"”.
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Computational tools for materials design: applications in dynamic covalent chemistry, polymers, and electrochemical systems
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Synthetic and mechanistic studies to expand the scope of alkyne metathesis dynamic covalent chemistry
Dynamic covalent chemistry (DCC) is a widely applied method for the synthesis of diverse molecular architectures and chemical libraries which are of broad interest in a number of chemical disciplines. As part of the greater subset of molecular self-assembly processes, DCC allows for the assembly of …
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The Solid Phase Synthesis of M-Phenylene Ethynylene Oligomers and Its Application to the Synthesis of Covalent Molecular Ladders
… of forming large 2D grids through the use of dynamic covalent chemistry we first targeted the self-assembly of complimentary oligomers into [n]-rung ladders. We chose to employ imine formation as a chemical cross-link to capitalize on the self-correcting benefits of dynamic covalent chemistry …
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Understanding reaction pathways leading to tetrahedral organic cages via alkyne metathesis
… of constructing various POCs via multitopic dynamic covalent chemistry (DCC) has been demonstrated. The common view of successful DCC syntheses is that they proceed reversibly, ultimately allowing “error-correction” to provide thermodynamically favored products. The current approach to …
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Effects of shape, conformation, and symmetry on macrocycle synthesis via alkyne metathesis
… mixtures and low yields of a desired macrocycle. Dynamic covalent chemistry (DCC), specifically alkyne metathesis, was used to elucidate and probe the structural parameters that favor efficient macrocycle synthesis, because it involves rapid, reversible reactions under thermodynamic control, …
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Design and Synthesis of Polymer Networks and Branched Polymers for Triggered Deconstruction of Self-Assembly
… plastics which are held together by permanent covalent crosslinks–thermosets, which make up 20% of all plastics–cannot generally be reprocessed or broken down. Generalizable strategies for the deconstruction and/or reprocessing of thermoset materials are therefore severely lacking and highly …
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Nucleic acid-templated assembly of therapeutic agents
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Liquid Crystalline Elastomers as Renewable Functional Materials: From Chemistry to Application
… reversible actuation depend on the underlying chemistry and the alignment of the LC components in the network. However, achieving specific, complex, macroscopic-scale 3D structures with a predetermined actuation behaviour remains a challenge with conventional alignment techniques. The …
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Microporous materials fabricated from discrete molecular cages
… zeolites, metal-organic frameworks (MOFs), and covalent-organic frameworks (COFs) all demonstrate the profound ability to position pores of various shapes and sizes with molecular precision in a solid framework. This control over pore design has led to significant materials applications for …
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Hindered urea bond for the design of dynamic materials
Dynamic covalent bonds (DCBs) featuring reversible bonding/debonding properties have found various applications in dynamic materials designs such as self-healing, malleable, shape-memory or environmentally-adaptive materials. However, most DCBs developed so far require either catalyst or harsh …
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Directing the Assembly of Multicomponent Organic Crystals. Synthesis, characterisation and structural analysis of multicomponent organic systems formed from dynamic processes.
Directed assembly of molecular solids continues to attract widespread interest with its fundamental application in a wide range of commercial settings where control of the crystalline state of materials corresponds with product performance. These arenas include pharmaceuticals, personal care …
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Part I. Rhodium-catalyzed asymmetric functionalization of allylic amines Part II. Harnessing kinetic driving forces in alkyne metathesis for the synthesis of complex molecular architectures
… major product was kinetically, rather than thermodynamically, favored, an unexpected result considering that alkyne metathesis is a reversible process. We provide computational justification for the kinetic selectivity which arises from differences in strain energy in the transition state of …
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Design of advanced biobased photocurable formulations: from dynamic covalent network to composite scaffold for tissue engineering
L'abstract è presente nell'allegato / the abstract is in the attachment