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Showing 1 to 20 of 34 for “"Solution Casting"”.
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Solution-casting of Disulfonated Poly(arylene ether sulfone) Multiblock Copolymer Films for Proton Exchange Membranes
… focused on the investigation of the effects of solution-casting conditions on the final morphology and properties of disulfonated poly(arylene ether sulfone) multiblock copolymer films from the viewpoint of phase separation of block copolymers. Of equal importance to this work, is a possibility …
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Structure–Property Relationships Of: 1) Novel Polyurethane and Polyurea Segmented Copolymers and 2) The Influence of Selected Solution Casting Variables on the Solid State Structure of Synthetic Polypeptide Films Based on Glutamate Chemistry
… a study was conducted into the influence of casting variables on the solid-state structure of synthetic polypeptide films based on glutamate chemistry. The effect of solvent evaporation was determined to play a key role in the morphology of these polypeptide films. Measured small angle light …
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The blending of hydroxypropyl lignin with poly(methylmethacrylate) and poly(vinyl alcohol)
… of preparation included injection molding and solution casting with THF (a hydrogen bonding solvent ) and chloroform (a non-hydrogen bonding solvent) . SEM results indicated that all HPL/ PMMA blends formed two phase systems. However the domain-matrix interphase varied with the method of …
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Morphology-Property Relationship for Binary Organic Thin Films
… thin films can be readily mass-produced through solution-based fabrication methods including ink-printing and solution-casting because their light weight, flexibility, and inexpensive sources. Their applications range from organic field-effect transistors (OFET), organic solar cells (OSC), to …
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All-solid-state front-illuminated titania nanotube-based dye-sensitized solar-cells
… state solar cell could finally be achieved by solution casting of a CuSCN-based hole-conductor into this nanotube array. Optimization of the conductivity by Ni2+ doping and of the pore penetration via additives controlling the CuSCN particle size proved essential for the favorable performance …
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Influence of Solvent Removal Rate and Polymer Concentration on Ordering Kinetics of Block Copolymers in Solution
… was performed. Specifically, the process of solution casting block copolymer films was studied using small-angle X-ray scattering (SAXS). A method for determining the volume fraction of ordered phase in solution as the system dried was developed and used to analyze the solution casting …
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Carbon Hybrid Materials for Electromagnetic Interference (EMI) Shielding and Charge Storage Applications
… and PVA as a polymer matrix. By implementing solution casting and vacuum-assisted filtration (VAF) flexible thin-films with exceptional dielectric properties (solution casting at10.0 wt% MXene: ε^'=370.5 ,tanδ=0.11 and VAF at10.0 wt% MXene: ε^'=3165.8 ,tanδ=0.1) were fabricated. The reported …
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Study of poly (l-lactic acid)/poly (d-lactic acid) stereocomplex as nucleating agent for poly (l- lactic acid) crystallization
… different content of PDLA are prepared by the solution casting method. With different cooling rates (5, 15, 25 C/min), DSC non-isothermal crystallization experiments are performed. The results suggest that in the presence of the stereocomplex, the PLLA crystallization temperatures are found to …
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Pressure Driven Desalination Utilizing Nanomaterials
… of maintenance, increase of flux rate, simple solution casting, and impressive chemical inertness. Here, two projects are studied to investigate nanocarbon based membrane desalination. The first project is to prepare hybrid membranes with amyloid fibrils intercalated with graphene oxide sheets. …
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Synthesis and characterization of lignin-carbohydrate block copolymers
… is achieved (ie: 1 or 2). • Reaction in solution of this low DP CTA prepolymer with the HPL block. Films were directly obtained by solution casting of the mixture and cured. The parameters of investigation were HPL, or CTA block content and size of CTA block. Morphological characteristics …
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Investigation on Ammonium Perchlorate Based Electrically Controlled Propellants
… Although the propellant was manufactures by solution casting, the final product contained no solvent as confirmed by thermogravimetric analysis. Several electrode configurations were explored which balanced or limited either oxidation or reduction at the electrodes. Other than when reduction …
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Biphasic Cellulose Acetate/Rtil Membranes And Functionalized Graphene Adsorbents For Natural Gas Processing: Experimental And Molecular Simulation Studies
… membranes were fabricated using the solution casting and solution casting/phase inversion methods, respectively. Infrared spectra and atomic force micrographs were generated to characterize the fabricated membranes. Moreover, the transport properties of co2, n2, ch4, and c3h8 gases …
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Analytical and Experimental Investigation of Interphase and Dispersion Effects on the Mechanical Stiffness of Cellulose Nanocomposites
… nanocrystals (PD-CNC) were prepared via solution casting method and tested for mechanical stiffness. These outcomes were compared to standard composite models as well as novel methods adapted from the literature that incorporate data regarding dispersion quality and interphase properties. …
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Processing Approaches for Maintaining Multifunctionality in Advanced Thermoplastic Composites
… multifunctional composites include extrusion, solution casting, molding, and spinning techniques. Most of these techniques are used to create materials with a homogeneous microstructure, as thorough mixing is needed for the matrix material to successfully accept the functional particle. In …
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ORMOCER (inorganic-organic hybrid polymer)-zeolite Nanocomposites: Advanced Membrane Materials for Gas Separation
… 5Å. The membranes were prepared by conventional solution casting method followed by UV-curing. The ORMOCER® resins and cured membranes were analysed using FT-IR, liquid-state 29Si NMR, TG, DSC, SEM, N2 sorption and single-gas permeation measurements. The permeation performance of the membranes …
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Elastomer Degradation in Chemically Reactive Environment under Elevated Temperature and Pressurized Condition
… The nanocomposite are fabricated by a solution casting technique based on a patent from our research group to achieve high quality interfacial bonding and uniform filler distribution. Electromechanical behavior in such elastomer nanocomposite is studied, repeatable piezoresistive …
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Characteristics of a New Copolymer For Bulk Heterojunction Solar Cells
… area substrates using roll-to-roll processing, solution casting or screen printing. Most high performance organic solar cells utilize tandem structure with wide band gap polymer as a front cell material and low band gap polymer as a rear cell material. Since poly(3-hexylthiophene) (P3HT) has …
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Composite Gel Polymer Electrolyte for Lithium Ion Batteries
… polypropylene (PP) membrane separator using solution casting technique. In acidic CGPE, the mixture of acid treated TiO<sub>2</sub> and neutral SiO<sub>2</sub> nano particles played the role of the charge modified nano fillers with enhanced hydroxyl groups. The mixture of neutral …
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A novel approach to the scalable production of nanoporous silicon membranes for applications in water and energy
… homogeneity. The first approach utilizes solution-casting of core-shell nanoparticle catalysts, where the shell is employed as a sacrificial spacer layer to maintain separation between etching-active catalyst cores. A second technique utilizing sputter-deposition of catalyst is developed …
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