Thermodynamic Modeling of Associating Fluids: Theory and Application

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dc.contributor.advisorChapman, Walter G
dc.creatorHaghmoradi, Amin
dc.date.accessioned2019-05-17T15:41:02Z
dc.date.available2019-05-17T15:41:02Z
dc.date.created2018-08
dc.date.issued2018-08-02
dc.date.submittedAugust 2018
dc.date.updated2019-05-17T15:41:03Z
dc.description.abstractThe association interaction plays a significant role in self-assembly and determining the properties of associating fluids. The patch-patch attraction in patchy colloids, and hydrogen bonding are two examples of association. Due to the strength, range, and directionality of association, an accurate theory including information at the level of the structure of self-assembling species is required for a precise prediction of the behavior of these fluids. Wertheim\textquoteright s thermodynamic perturbation theory, which uses density expansion method, has presented a promising performance in capturing the thermo-physical properties of both hydrogen bonding and patchy colloidal fluids through prediction of all possible states of the bonding of associating species. While most of the previous studies were focused on utilizing the first order limit of Wertheim\textquoteright s theory, recent simulation and theoretical studies have shown that the simplifying assumptions included in the first order make it not capable of modeling complex self-assembling species. In this thesis, we develop Wertheim\textquoteright s theory beyond its first order to include accurate information about the structure of associating species like the size of association sites and their relative positions (in case of fluids with multiple sites), and possible self-assembled clusters of associated species. The theory developments are applied for both hydrogen bonding in molecular fluids and patchy colloids and verified with Monte Carlo simulations and previous experimental measurements results, where the agreements were excellent. Beyond the introduction and conclusion chapters, the scope of this thesis can be summarized into the followings: Chapter 2: the prediction of the self-assembly of a binary mixture of patchy colloids with two similar patches and small bond angle. Chapter 3: modeling the effect of hydrogen bond cooperativity and bond angle dependent ring formation for associating hard spheres and Lennard Jones spheres. Applying the final equations to predict the thermodynamic properties of hydrogen fluoride. Chapter 4: developing an asymmetric model for water including the effect of hydrogen bond cooperativity and multiple bonding at an association site. Chapter 5: the extension of Wertheim\textquoteright s theory for fluids of patchy colloids with two divalent patches confined between two planar hard walls in a classical density functional theory formalism. Chapter 6: investigating the effect steric hindrance for association between an associating fluid and a planar hard wall with discrete divalent active sites.
dc.format.mimetypeapplication/pdf
dc.identifier.citationHaghmoradi, Amin. "Thermodynamic Modeling of Associating Fluids: Theory and Application." (2018) Diss., Rice University. <a href="https://hdl.handle.net/1911/105800">https://hdl.handle.net/1911/105800</a>.
dc.identifier.urihttps://hdl.handle.net/1911/105800
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectAssociating Fluids
dc.subjectThermodynamic Modeling
dc.titleThermodynamic Modeling of Associating Fluids: Theory and Application
dc.typeThesis
dc.type.materialText
thesis.degree.departmentChemical and Biomolecular Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy
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