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.
Results
Showing 1 to 20 of 203 for “"Intermolecular interactions"”.
-
Studies of Bonding and Intermolecular Interactions
Made available in DSpace on 2014-12-10T23:01:45Z (GMT). No. of bitstreams: 1 7412099.pdf: 7557258 bytes, checksum: 19790f77a3bfceeb29465d428d42ef19 (MD5) Previous issue date: 1973
-
Using Molecular Design to Influence Intermolecular Interactions
… describes the impact of molecular design on intermolecular interactions. Chapter 2 explores tuning the properties of contorted hexabenzocoronene (HBC) derivatives to improve photovoltaic performance. First, the interaction between contorted HBC derivatives with varying degrees of "bowl" …
-
Tailoring Intermolecular Interactions for High-Performance Nanocomposites
… significant impact on composite hydrogen bonding interactions upon MWCNT incorporation, which was amplified in composites formed using hydrogen bonding functionalized MWCNTs. Acid oxidation of carbon nanohorns (CNHs) yielded carboxylic acid functionalized CNHs, providing sites for further reaction …
-
Characterization of Intermolecular Interactions in Nanostructured Materials
… techniques were utilized to investigate the intermolecular forces in several nanostructured materials. Techniques including, but not limited to, isothermal titration calorimetry (ITC), variable temperature Fourier transform infrared (FTIR) spectroscopy, and ultraviolet-visible (UV-Vis) …
-
Systematic Investigation of Intermolecular Interactions in NEXAFS Spectroscopy
… but only if the spectroscopic effects of intermolecular interactions are well understood. This work aims to contribute to an improved general understanding of the roles of intermolecular interactions on NEXAFS spectroscopy by studying the effects of Rydberg quenching on the degree of …
-
Specific intermolecular interactions for tailoring supercritical fluid solutions
Investigations of supercritical fluid solutions containing cosolvents are described; in addition, recommendations for future work to improve the understanding of these solutions are made.
-
Weak intermolecular interactions as binding probes and analytical tools
… to small charged molecules through non-covalent interactions. These supramolecular structures are often involved in cooperative binding events to guest molecules in which they display enhanced affinity. This dissertation describes a series of studies aimed at gaining a deeper understanding of the …
-
Intermolecular interactions in supercritical fluid solutions from fluorescence spectroscopy
… fluorescence spectroscopy to probe the local interactions. In contrast to thermodynamic measurements, this technique determines the strength of interactions on a molecular scale, which is important in the development of more accurate thermodynamic models. For pyrene, naphthalene, dibenzofuran …
-
Self-Assembly in Physisorbed Monolayers via Directional Intermolecular Interactions
… the ability of two non-covalent directional interactions (halogen and hydrogen bonds) to influence the structure of self-assembled physisorbed organic monolayers is considered. These layers exhibit only weak, non-directional interactions with the substrate, and so their structure is driven by …
-
Studies of Solution Paramagnetic-Substrate Nuclear and Electron Intermolecular Interactions
… dynamics. The short-lived solvent-solute interactions of the TEMPO-substrate molecules, such as transient complex formation, are governed by weak hydrogen-bonding interactions. The collisions in solution were explained by determining the favored orientations of the two molecules …
-
Raman scattering studies of intermolecular interactions in molecular liquids at high pressure
This work is an experimental study of the Raman non-coincidence effect which is the difference between the band centers of the isotropic and the anisotropic spectra. We have studied the C=O symmetric stretching mode of N,N-dimethylacetamide (DMA) and acetone. The band shape parameters are …
-
The Influence of Branching and Intermolecular Interactions on the Formation of Electrospun Fibers
The implications of chain topology and intermolecular interactions on the electrospinning process were investigated for linear and randomly branched polymers. Empirical correlations were developed based on solution rheological measurements that predict the onset of electrospun fiber formation and …
-
Influence of Electrostatic and Intermolecular Interactions on the Solution Behavior and Electrospinning of Functional Nanofibers
… was studied to investigate the effect of intermolecular interactions, including electrostatic interactions, hydrogen bonding, surface activity, and surface functionalization of carbon nanotubes. The synthesis of novel polyelectrolytes with varied topologies, charge content, and counterions …
-
Non-covalent Intermolecular Interactions in Polymer Design: Segmented Copolymers to Non-viral Gene Delivery Vectors
Non-covalent intermolecular interactions play a large role in determining the properties of a given system, from segmented copolymers to interactions of functionalized polymers with non-viral nucleic acids delivery vehicles. The ability to control the intermolecular interactions of a given system …
-
Probing Morphology, Transport and Local Intermolecular Interactions in Polymeric Materials via NMR Diffusometry and Spectroscopy
… the contributions of structure from chemical interactions in the chemically similar desalination materials by investigating the local activation energy of diffusion in both materials, as well as aqueous solutions of the hydrophilic monomers analogous to the internal membrane environment. We …
-
Tailoring intermolecular interactions in methacrylate-based copolymers and nanocomposites: Effect on molecular dynamics and thermal properties
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Studies of liquid phase intermolecular interactions utilizing ¹H and ¹³C dynamic nuclear polarization and nuclear magnetic resonance techniques
Liquid phase ¹³C DNP experimental data were collected in a flow transfer system for different organic molecules, such as acetone, acetaldehyde, diethyl malonate, ethyl acetoacetate, diphenylmethane, and triphenylmethane. These molecules represent a wide range of functional groups with different …
-
Investigating the molecular origins of biocompatibility : intermolecular interactions between human serum albumin and various chemically modified surfaces via high resolution force spectroscopy
… which sought to investigate the constituent intermolecular interaction forces governing protein adhesion to biomaterials, using the technique of high resolution force spectroscopy. The model protein chosen for our study was human serum albumin (HSA), the smallest and most abundant blood …
-
Probing diffusion and molecular dynamics to study self-assembly and intermolecular interactions in macromolecular and colloidal systems using NMR diffusometry and spectroscopy
… requires a deep understanding of the molecular interactions, self-assembly processes, and transport phenomena that govern their behavior at the nanoscale. This dissertation focuses on the application of advanced nuclear magnetic resonance (NMR) techniques to probe the molecular dynamics and …
Page 1 of 11