Browsing Department of Chemical Engineering Faculty Publications by Title
Now showing items 1-20 of 52
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Aqueous copper(0) mediated reversible deactivation radical polymerization of 2-hydroxyethyl acrylate
(Royal Society of Chemistry (RSC), 2015-09-01)Reversible deactivation radical polymerization (RDRP) of 2-hydroxyethyl acrylate in D2O with Cu(0) wire mediation and with two-step Cu(0) in situ mediation was investigated. The concentration of active species on the Cu(0) ... -
The biological treatment of synthetic fracking fluid in an extractive membrane bioreactor: Selective transport and biodegradation of hydrophobic and hydrophilic contaminants
(2019-06-05)The biodegradation of selected organic constituents present in hydraulic fracturing wastewater were examined in an extractive membrane bioreactor (EMB) operating with Hytrel™ 3548 tubing. Synthetic hydraulic fracturing ... -
Bonding Nafion® with polydimethysiloxane: A versatile approach towards ion-exchange membrane microfluidic devices
(Elsevier BV, 2017-09-01)Polydimethylsiloxane (PDMS) is one of the most widely used materials for the fabrication of microfluidic devices. The uncomplicated integration of ion-exchange membranes, such as Nafion®, would facilitate manifold ... -
Cationic Hydrolytically Degradable Flocculants with Enhanced Water Recovery for Oil Sands Tailings Remediation
(Wiley, 2016)Micellar radical polymerization of a short-chain polyester macromonomer, polycaprolactone choline iodide ester methacrylate (PCLnChMA), is used to produce a new cationic flocculant that becomes more hydrophobic in response ... -
Charge and Electrical Double Layer Formation in a Nonpolar Solvent Using a Nonionic Surfactant
(American Chemical Society (ACS), 2020-05-19)In this work, we study the charge formation and the characteristics of the electrical double layer in a nonpolar medium using electrical impedance spectroscopy. To stabilize the free ionic species, a nonionic surfactant ... -
Coagent Modified Polypropylene Prepared by Reactive Extrusion: A New Look Into the Structure-Property Relations of Injection Molded Parts
(2016-06-09)Peroxide-mediated reactive extrusion of linear isotactic polypropylene (L-PP) was conducted in the presence of trimethylolpropane trimethacrylate (TMPTMA) and triallyl trimesate (TAM) coagents, using a twin screw extruder. ... -
Critically Evaluated Rate Coefficients in Radical Polymerization – 8. Propagation Rate Coefficients for Vinyl Acetate in Bulk
(Wiley, 2017)Propagation rate coefficient values, kp, reported by several groups for radical polymerization of bulk vinyl acetate are critically evaluated. All data are obtained by the combination of pulsed-laser polymerization and ... -
Design of Acrylic Dispersants for Nonaqueous Dispersion Polymerization: The Importance of Thermodynamics
(Wiley, 2018)Poly(acrylic) nanoparticles produced by nonaqueous dispersion (NAD) radical polymerization are important components in many automotive coating formulations. A series of experiments show that the properties of final dispersions ... -
Dielectric relaxation spectroscopy of aqueous micellar electrolyte solutions: A novel application to infer Dukhin number and zeta potential of a micelle
(Wiley, 2019)The complex permittivities of aqueous SDS solutions, with and without the addition of sodium chloride (NaCl), are measured in the frequency range from 200 MHz to 14 GHz. The SDS concentrations are chosen such that the SDS ... -
Direct writing of liquids by micro dispensing: Stability and shape of laminar jets with high Froude numbers
(Elsevier BV, 2020-02-01)Nowadays, a wide range of industrial manufacturing processes require high precision for product manufacturing. Micro dispensing is concerned with jetting of liquids through nozzles with a typical diameter on the order of ... -
The Effect of Hydrogen Bonding on Radical Semi-Batch Copolymerization of Butyl Acrylate and 2-Hydroxyethyl Acrylate
(MDPI AG, 2017-08)The radical copolymerization of butyl acrylate (BA) and 2-hydroxyethyl acrylate (HEA) was investigated under batch and semi-batch operations, with a focus on the influence of hydrogen-bonding on acrylate backbiting. The ... -
Electrochemical investigation and modelling of LaNi4.77Al0.23 thin-films sputtered on glass wafers
(Elsevier BV, 2019-01-25)In the present work, we report on the microfabrication of metal hydride thin-film electrodes which can be utilized for rechargeable microbatteries or sensor applications. A multi-layer deposition technique is developed ... -
Electrokinetic Manipulation of the von Kármán Vortex Street in the Wake of a Confined Cylinder. I. DC Electric Field
(AIP Publishing, 2018-08-08)The present study is concerned with the numerical simulation of the pressure-driven flow around a confined cylinder subjected to a DC electric field. The flow situation differs from the conventional von Karm´ an vortex ... -
Exfoliation of graphite and expanded graphite by melt compounding to prepare reinforced, thermally and electrically conducting polyamide composites
(2019-04-02)High performance composites based on a thermoplastic polyamide matrix containing well dispersed graphene nanoplatelets are prepared, by delaminating expanded graphite (EG) into its constituent graphene nanoplatelet (GNP) ... -
Extended cross decomposition for mixed-integer linear programs with strong and weak linking constraints
(Elsevier BV, 2018-11-02)Large-scale mixed-integer linear programming (MILP) problems, such as those from two-stage stochastic programming, usually have a decomposable structure that can be exploited to design efficient optimization methods. ... -
Extractable content of functional acrylic resins produced by radical copolymerization: A comparison of experiment and stochastic simulation
(Elsevier BV, 2019-12-15)A comprehensive stochastic simulator that considers all probable secondary reactions essential for the description of high-temperature radical copolymerization of acrylate/methacrylate is implemented based on previously ... -
Fabrication and characterization of a coplanar nickel-metal hydride microbattery equipped with a gel electrolyte
(Elsevier BV, 2019-02-28)The growing utilization of portable and autonomous micro devices results in a need for novel integrated power supplies with low power densities and energy contents. We report on a rechargeable thin-film microbattery which ... -
Fundamentals of Electrochemical CO2 Reduction on Single-Metal-Atom Catalysts
(American Chemical Society, 2020-08-06)Electrochemical carbon dioxide (CO2) reduction powered by renewable electricity offers a path to produce valuable products from CO2 —this earth-scale human waste— and to store intermittent renewable energy in the form of ... -
Gas diffusion electrode design for electrochemical carbon dioxide reduction
(Royal Society of Chemistry, 2020-10-05)Anthropogenic carbon dioxide (CO2) emissions contribute to the greenhouse effect and global warming, which can lead to undesirable climate change and extinction of species. Besides the ongoing efforts to develop environmentally ... -
Hydrogen bonding in radical solution copolymerization kinetics of acrylates and methacrylates: a comparison of hydroxy- and methoxy-functionality
(Royal Society of Chemistry (RSC), 2017-03-21)The pulsed-laser polymerization technique in combination with size exclusion chromatography and nuclear magnetic resonance is used to study the influences of solvent choice and monomer structure on the copolymerization ...