Browsing Science (Faculty of) by Subject "Polymers"
Now showing items 1-13 of 13
-
Calibrating the Long-Range Backbone Dynamics of Polymers in Solution Using Two Different Models
(University of Waterloo, 2022-09-29)The fluorescence decays of a series of 41 pyrene-labeled poly(oligo(ethylene glycol)methyl ether methacrylate)s (Py-PEGnMA where n = 0, 1, 2, 3, 4, 5, 9, 16, 19) were prepared by free-radical polymerization of 1-pyrenebutyl ... -
Depletion gels from dense soft colloids: Rheology and thermoreversible melting
(American Institute of Physics, 2014-08-01)Upon addition of small nonadsorbing linear polymers, colloidal glasses composed of large hard spheres melt and eventually revitrify into the so-called attractive glass regime. We show that, when replacing the hard spheres ... -
Design and Characterization of Various Lipid, Polymer, and Gemini-Surfactant – Based Vectors and DNA as Non-Viral Delivery Systems for Gene Therapy Applications
(University of Waterloo, 2023-08-31)The bulk of this thesis work is the result of a pharmaceutical collaboration, and it utilizes several proprietary systems. While Chapters 3 and 4 will provide an in-depth discussion of the results, the specific names, ... -
Long Range Polymer Chain Dynamics Probed with Pyrene Excimer Fluorescence
(University of Waterloo, 2016-09-27)A series of fluorescently labeled vinyl polymers bearing a C1-C18 side-chain (namely poly(methyl methacrylate), poly(butyl methacrylate), poly(octyl methacrylate), poly(lauryl methacrylate), and poly(stearyl methacrylate) ... -
Metal-mediated Adsorption of DNA Oligonucleotides onto Polymeric Materials
(University of Waterloo, 2022-12-20)In recent decades, DNA oligonucleotides have been extensively researched due to their applications for catalysis (DNAzymes), biosensing (DNA aptamers/Watson-Crick hybridization), and nanomaterials assembly (DNA origami). ... -
Polymer-Integrated Organolead Halide Perovskite for Solar Cells and Self-Powered Electronic Devices
(University of Waterloo, 2020-04-28)In recent years, organolead halide perovskites (MAPbI3) have emerged as prospective materials for high-efficiency, inexpensive, and simple solution-processed optoelectronic devices such as solar cells, photodetectors, and ... -
Preparation and Characterization of Temperature-Responsive Polymeric Surfactants
(University of Waterloo, 2014-01-28)Canada has large reserves of heavy oil stored in the form of oil sands in the Athabasca region. This type of heavy oil does not flow at room temperature and its agglomeration with sand complicates its extraction. Consequently, ... -
Probing Side Chain Dynamics of Branched Macromolecules by Pyrene Excimer Fluorescence
(American Chemical Society, 2016-01-12)Four different pyrene-labeled polymers were prepared by radical copolymerization of n-butyl methacrylate (BMA) and 1-pyrenemethyl methacrylate (PyEG(0)-MA), 1-pyrenemethoxyethyl methacrylate (PyEG(1)-MA), 1-pyrene-methox ... -
Quantifying the Level of Intermacromolecular Interactions in Ethylene-Propylene Copolymers by Using Pyrene Excimer Formation
(American Chemical Society, 2015-07-14)A unique methodology based on fluorescence measurements is introduced to quantitatively measure the actual level of interpolymeric association between ethylene-propylene (EP) copolymers used as viscosity index improvers ... -
Studying polymer physics by machine learning.
(University of Waterloo, 2020-04-16)Recently, machine learning becomes a computational method that burst in popularity. Many disciplines, such as condensed matter physics, quantum chemistry, chemical engineering as well as polymer physics have incorporate ... -
The TFOS International Workshop on Contact Lens Discomfort: Report of the Contact Lens Materials, Design, and Care Subcommittee
(Association for Research in Vision and Ophthalmology, 2013-10-18)Examining the role of the contact lens material, design, and the care system is fundamental to understanding contact lens discomfort (CLD). However, a systematic review that tries to determine the governing factors is ... -
Theory and simulation of interactive membrane-macromolecule structures in biological systems
(University of Waterloo, 2014-08-11)This thesis focuses on one of the branches of soft matter: biological systems. More specifically, we study the morphological transformation of lipid bilayer membranes induced by interacting with macromolecules. Recent ... -
Using Pyrene Excimer Fluorescence To Probe the Interactions between Viscosity Index Improvers and Waxes Present in Automotive Oil
(American Chemical Society, 2017-03-28)A new methodology based on pyrene excimer fluorescence (PEF) was applied to quantitatively measure the actual level of intermolecular association between ethylene propylene (EP) copolymers in toluene in the presence of ...