Index Catalog // Arch : Northwestern University Institutional Repository

In Situ Morphology, Formation, and Dynamics of Heterogeneous Soft Matter Systems Elucidated via Liquid Phase Transmission Electron Microscopy

Description:: Herein, we present an overview of our studies of the morphology, dynamics, and formation of heterogeneous soft matter systems via the emerging technique of liquid phase transmission electron microscopy (LPTEM). This particular subset of materials, more commonly referred to as emulsions, is tremendously commercially and biologically relevant, encompassing applications in...
Keyword:: liquid phase transmission electron microscopy, soft matter, emulsions, surfactants, and polymers
Subject:: Polymer chemistry and Materials Science
Creator:: Vratsanos, Maria A.
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 08/23/2023
Date Created:: 2023-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_1009969 and http://dissertations.umi.com/northwestern:16698

Chemical and Mechanical Properties of Drying Oils during Polymerization

Description:: Drying oils have been used as a binding medium for oil paints since the 15th century. These oil paints transition from a liquid-like paste to a solid-like film as a result of crosslinks forming between the oil molecules. These reactions have been extensively studied chemically, but other material properties are...
Keyword:: ATR-FTIR, Linseed oil, Drying oils, and Mechanical Properties
Subject:: Polymer chemistry and Materials Science
Creator:: dePolo, Gwen Ellen
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 08/23/2023
Date Created:: 2023-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:16730 and etdadmin_upload_1012786

In Situ Morphology, Formation, and Dynamics of Heterogeneous Soft Matter Systems Elucidated via Liquid Phase Transmission Electron Microscopy

Description:: Herein, we present an overview of our studies of the morphology, dynamics, and formation of heterogeneous soft matter systems via the emerging technique of liquid phase transmission electron microscopy (LPTEM). This particular subset of materials, more commonly referred to as emulsions, is tremendously commercially and biologically relevant, encompassing applications in...
Keyword:: liquid phase transmission electron microscopy, soft matter, emulsions, polymers, and surfactants
Subject:: Polymer chemistry and Materials Science
Creator:: Vratsanos, Maria A.
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 08/23/2023
Date Created:: 2023-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_1009969 and http://dissertations.umi.com/northwestern:16698

Body Heat-Activated Polymer-Mineral Composites for Vertebral Body Fractures

Description:: Polymer and polymer/ceramic composites known as bone cements are commonly used in musculoskeletal reconstructive surgeries where bone tissue fixation, reinforcement, or void filling may be needed. Polymethylmethacrylate, PMMA, was the initial (and currently only) FDA-approved bone cement for bone-void filling applications yet faces many inherent material-based challenges that impacts its...
Keyword:: Citrate-based biomaterials, V70, Hydroxyapatite, Bone Cement, Vertebral Body Fractures, and Polymethylmethacrylate
Subject:: Polymer chemistry, Materials Science, and Biomedical engineering
Creator:: Huddleston, Samantha
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 09/22/2022
Date Created:: 2022-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:16143 and etdadmin_upload_915696

Discovery, Investigation, and Implementation of a Photocontrolled Dynamic Covalent Reaction to Reversibly Tune Hydrogel Mechanics.

Description:: Part I: Evaluating the relationship between Crosslink Kinetics and Thermodynamics with the hydrogel mechanics. The past two decades have witnessed a surge of applications built upon dynamic covalent chemistry (DCC), both attributed to the scope of developed reactions as well as their modularity.1-3 These reactions have comparable strengths to their...
Keyword:: Hydrogels, Rheology, Photoswitch, and Kinetics
Subject:: Organic chemistry, Polymer chemistry, and Materials Science
Creator:: Accardo, Joseph
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 06/22/2022
Date Created:: 2021-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:15898 and etdadmin_upload_873494

Design Driven Multi-scale Mechanical Property Characterization of Polymer Composites

Description:: There is no group of materials as diverse, complex, and ubiquitous as polymers. From plastic bags, to rubber tires, electronics, food packaging, water filtration and even aerospace applications, the penetration of polymer materials into all aspects of life make them very important materials throughout all engineering fields. However, this breadth...
Keyword:: Characterization, Materials Design, Polymer, Composite, and Mechanical Properties
Subject:: Mechanics, Polymer chemistry, and Materials Science
Creator:: Eaton, Matthew David
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 04/15/2021
Date Created:: 2020-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_763586 and http://dissertations.umi.com/northwestern:15243

Two-Dimensional Polymers: Syntheses, Properties, and Applications

Description:: Discrete molecules, linear and branched polymers, and disordered cross-linked networks are well studied objects of chemical synthesis. However, two-dimensional polymers (2DPs) have been long missing from this continuum of molecular architectures, both in chemical synthesis and in Nature. Recently, new polymerization strategies and characterization methods have enabled the unambiguous realization...
Keyword:: Covalent Organic Frameworks, Controlled Polymerization, Organic Electronics, and Two-dimensional Polymers
Subject:: Polymer chemistry, Chemistry, and Materials Science
Creator:: Evans, Austin Michael
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 04/15/2021
Date Created:: 2020-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_793170 and http://dissertations.umi.com/northwestern:15454

Design of Photo-Responsive Molecules and Study of Loops in Dynamic Covalent Networks

Description:: Part I: Design of Photo-Responsive Molecules towards Biomedical ApplicationsThe use of light to control systems provides numerous advantages such as spatiotemporal precision, non-invasive penetration, and precise energy input. Specifically, molecules that undergo photoinduced cleavage, photoremovable protecting groups (PPGs) have emerged as an active area of research due to their broad...
Subject:: Polymer chemistry, Chemistry, and Materials Science
Creator:: Wang, Xiaodi
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/01/2021
Date Created:: 2020-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:15393 and etdadmin_upload_780358

Non-covalent and Ion-specific Interactions in Charged Macromolecules

Description:: Non-covalent and ion-specific interactions in the context of charged polymers are ubiquitous in nature and in synthetic applications. For example, mussels utilize metal-coordinate bonds to form tough underwater adhesion to a wide range of substrates. The sandcastle worm uses coacervation of oppositely charged polymers to build robust structures for self-defense....
Keyword:: Coacervate, Polyelectrolytes, Polymer Mechanics, Quartz Crystal Microbalance, Oil/Water Interface, and Coatings
Subject:: Polymer chemistry and Materials Science
Creator:: Sadman, Kazi
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2019-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14664 and etdadmin_upload_662829

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In Situ Morphology, Formation, and Dynamics of Heterogeneous Soft Matter Systems Elucidated via Liquid Phase Transmission Electron Microscopy

Chemical and Mechanical Properties of Drying Oils during Polymerization

In Situ Morphology, Formation, and Dynamics of Heterogeneous Soft Matter Systems Elucidated via Liquid Phase Transmission Electron Microscopy

Body Heat-Activated Polymer-Mineral Composites for Vertebral Body Fractures

Discovery, Investigation, and Implementation of a Photocontrolled Dynamic Covalent Reaction to Reversibly Tune Hydrogel Mechanics.

Design Driven Multi-scale Mechanical Property Characterization of Polymer Composites

Two-Dimensional Polymers: Syntheses, Properties, and Applications

Design of Photo-Responsive Molecules and Study of Loops in Dynamic Covalent Networks

Non-covalent and Ion-specific Interactions in Charged Macromolecules

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