Browsing Department of Chemical Engineering Faculty Publications by Title
Now showing items 11-30 of 52
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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 ... -
An Improved Model for Polyether Production from 1,3‐Propanediol
(Wiley, 2020-02-13)A dynamic mathematical model is developed for production of Cerenol polyether from 1,3‐propanediol in a batch reactor system. The model accounts for polycondensation reactions and side reactions in the liquid phase and for ... -
The influence of a DC electric field on the von Kármán vortex street in the wake of a confined cylinder
(Wiley, 2017)We investigate the influence of a DC electric field on the flow around and in the wake of a confined cylinder by means of numerical simulations. Our results indicate that even very small electrical perturbations have ... -
The influence of adding functionality to dispersant and particle core compositions in non-aqueous dispersion polymerization
(Elsevier BV, 2017-05-01)Nano-sized polyacrylate colloids (<200nm) at high solids level (~60wt%) are prepared via non-aqueous dispersion (NAD) semibatch polymerization using n-butyl methacrylate (BMA)-based macromer dispersants of varying chain ... -
The influence of hydrogen bonding on radical chain-growth parameters for butyl methacrylate/2-hydroxyethyl acrylate solution copolymerization
(Royal Society of Chemistry (RSC), 2016-07-05)2-Hydroxyethyl acrylate (HEA), commonly introduced to control resin properties and introduce crosslinking sites, affects radical copolymerization kinetics through hydrogen-bonding, with the extent of the influence dependent ... -
Investigating the Effectiveness of Reactive Dispersants in Non-Aqueous Dispersion Polymerization
(Wiley, 2016)Non-aqueous dispersion (NAD) radical polymerization is used to produce poly(acrylic) nanoparticles (<200 nm) at 60 wt% solids content by a starved-feed semibatch process, with steric stabilization provided by a low molecular ... -
A joint decomposition method for global optimization of multiscenario nonconvex mixed-integer nonlinear programs
(Springer Science and Business Media LLC, 2019-11-01)This paper proposes a joint decomposition method that combines Lagrangian decomposition and generalized Benders decomposition, to efficiently solve multiscenario nonconvex mixed-integer nonlinear programming (MINLP) problems ... -
Modeling the Synthesis of Butyl Methacrylate Macromonomer by Sequential ATRP-CCTP
(Wiley, 2019)The atom transfer radical polymerization of butyl methacrylate mediated by Cu(I)Br/N,N,N′,N″,N″-pentamethyldiethylenetriamine in anisole at 70 °C with the subsequent addition of bis(difluoroboryldiphenylglyoximato)cobalt(II) ... -
A multi-commodity flow formulation for the optimal design of wastewater treatment networks
(Elsevier BV, 2020-03-04)The wastewater treatment network (WWTN) optimization problem can be viewed as an extension of the generalized pooling problem (GPP), where not only the different streams are mixed and split, but also some chemical components ... -
A new cross decomposition method for stochastic mixed-integer linear programming
(Elsevier BV, 2017-01-16)Two-stage stochastic mixed-integer linear programming (MILP) problems can arise naturally from a variety of process design and operation problems. These problems, with a scenario based formulation, lead to large-scale MILPs ... -
A new optimization model and a customized solution method for natural gas production network design and operation
(Wiley, 2017-03-01)This article proposes to tackle integrated design and operation of natural gas production networks under uncertainty, using a new two-stage stochastic programming model, a novel reformulation strategy, and a customized ...