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  • Polymer
  • A phase separation liquid crystal polymer for displays, optical shutters and memories is disclosed, having on the side chains thereof at least one liquid crystal component and at least one non-liquid crystal component, said liquid crystal component and non-liquid crystal component being present in separate phases. (google.com)
  • This work sheds new light on fundamental aspects of phase separation in polymer-blend thin films. (abebooks.com)
  • Initially, an established 'phase portrait' method, useful for visualising and calculating phase equilibria of polymer-blend films, is generalised to systems without convenient simplifying symmetries. (abebooks.com)
  • Di Marzio EA, Gibbs JH (1958) Chain stiffness and the lattice theory of polymer phases. (springer.com)
  • The phase behavior and phase separation kinetics in polymer solutions in binary mixtures of supercritical carbon dioxide (CO2) and organic solvents were studied for two systems. (vt.edu)
  • The S-F phase boundary which represents the crystallization/melting process in the polymer solution was about 10 oC lower than the crystallization/melting temperatures of the neat polyethylene samples determined by differential scanning calorimetry (DSC). (vt.edu)
  • The phase separation kinetics in these two polymer solutions were investigated using time- and angle-resolved light scattering techniques. (vt.edu)
  • The phase-separation in these mixtures has been observed with atomic force microscopy (AFM) and demonstrated by photoluminescence (PL). The transient electroluminescence (EL) of PVK and MEHPPV in mixed PVK polymer light-emitting diodes (PLEDs) has been measured. (naver.com)
  • This may be accomplished by use of capillaries filled with or coated with solid ion-exchange polymers, or by addition of a soluble ionic polymer to the background electrolyte to create a pseudo-stationary phase. (edu.au)
  • To understand how polymers phase separate into liquid droplets, it is helpful to imagine the molecular interactions that the polymer chain can make-with itself, with copies of itself, and with the much smaller molecules surrounding it, the solvent. (the-scientist.com)
  • Succinoglycan purified from cultures was applied to different concentrations of cells, and observation of the phase behaviour showed that the limiting polymer concentration for aggregation and phase separation to occur decreased with increasing cell concentration, suggesting a 'crowding mechanism' was occurring. (royalsocietypublishing.org)
  • Polymerization reactions may be carried out in a solvent at a temperature which is above its lower critical solution temperature thereby resulting in a two-phase system comprising a solvent phase containing dissolved therein monomers and low molecular weight fractions of polymer and dispersed fluid phase. (google.com)
  • the polymer is separated from the heavier polymer rich phase. (google.com)
  • No. 2,529,520 which comprises using as the vehicle a mixed solvent phase comprising a blend of a non-solvent and a solvent for the polymer. (google.com)
  • stationary phase
  • The graphene oxide nanoparticle (GONP)-modified materials were produced as a potential strategy to increase both the surface area limitations and the reproducibility issues observed in monolithic stationary phase materials. (mdpi.com)
  • lipids
  • Described in this manuscript are normal phase and reversed phase separation strategies for lipids that include detection of the bioactive primary fatty acid amides and N-acyl glycines via tandem mass spectrometry. (frontiersin.org)
  • The organization of membranes, the cytosol, and the nucleus of eukaryotic cells can be controlled through phase separation of lipids, proteins, and nucleic acids. (gmu.edu)
  • chromatographic
  • A new and potentially universal concept is to introduce an ion-exchange component into a separation so that the migration of analyte ions is influenced by both their electrophoretic mobilities and their chromatographic properties. (edu.au)
  • This work presents the first instance of reversed-phase liquid chromatographic separation of small molecules using graphene oxide nanoparticle-modified polystyrene-divinylbenzene polymeric high internal phase emulsion (GONP PS- co -DVB polyHIPE) materials housed within a 200-µm internal diameter (i.d.) fused silica capillary. (mdpi.com)
  • miscibility
  • Despite the partial THF-water miscibility, the two phases could be separated at total flow rates up to 40 mL/min at different flow ratios, using a PTFE membrane with 28 cm2 of active area. (dtu.dk)
  • This system shows lower critical solution temperature (LCST)-type phase behavior at low CO2 content, which is shifted to upper critical solution temperature (UCST)-type at higher CO2 levels along with an increase in the miscibility pressures. (vt.edu)
  • The specific volume of the polysulfone solutions were found to display a variation parallel to this changing pattern in the phase boundaries, with reduced miscibility being accompanied with an increase in the specific volume. (vt.edu)
  • With the PE solutions, the focus was on the kinetics of S-F phase separation (crystallization) and miscibility and (melting) in n-pentane. (vt.edu)
  • inorganic
  • In this work, this potential discrepancy is investigated by examining how separation between the organic and inorganic phases as well as water uptake to the organic phase affects a chemical transport model's estimation of the importance of water solubility for organic aerosol formation.The CMAQ model reproduces SEARCH, IMPROVE, and CSN network observations of organic carbon (OC) within 20% in the eastern US. (epa.gov)
  • A device is disclosed for the separation of liquid-liquid phase and/or a liquid-gas phase where one or more of the phases is suspended in water and has a bubble/drop/particle size in the sub micron and micron area, and/or fine particular organic or inorganic material is present in one or more of the phases. (wipo.int)
  • capillary
  • It was shown that microporous membrane L-L separation can offer very large operating windows compared to other separation devices thanks to a high capillary pressure (Laplace pressure) combined with a large number of pores per unit area offering low pressure drop. (dtu.dk)
  • Processes
  • The ability to purify cells in specific phases of the cell cycle in sufficient quantities for biochemical analysis or to obtain a "synchronized" population of living cells enriched in a particular phase is of great value for studying a wide range of cell cycle processes. (biomedsearch.com)
  • From this information, we show that phase separation of the alnico 8 alloy consists of both spinodal decomposition and nucleation and growth processes. (osti.gov)
  • The lower surface area of GONP-modified polyHIPEs provided similar separation efficiency and increased repeatability from injection to injection resulting in % relative standard deviations (%RSDs) of less than 0.6%, indicating the potential offered by graphene oxide (GO)-modified polyHIPES in flow through applications such as adsorption or separation processes. (mdpi.com)
  • heterogeneous
  • Differential scanning calorimetry (DSC) and other methods of thermal analysis provide a lot of information about phase behaviour and physical properties of heterogeneous systems. (springer.com)
  • The principles of atmospheric reactions (gas, liquid and heterogeneous phases in aerosols and clouds) and issues related to chemical global change will be explored. (mcgill.ca)
  • detailed phase diagram
  • Here, we focus on the first of these stages, combining a set of systematic rheology and polarizing optics experiments with computer simulations to establish a detailed phase diagram of aqueous CNC suspensions with two different values of the surface charge, up to the concentration where kinetic arrest sets in. (frontiersin.org)
  • Lower Critical So
  • and defining a lower critical solution temperature (LSCT) mixture that will undergo a liquid-liquid phase separation when flowing through at least one conduit of a cooling system that is thermally coupled to the device, when the device is heated above a predetermined temperature within the temperature range. (freepatentsonline.com)
  • detect
  • We report a hitherto unnoticed change in character of the isotropic-cholesteric transition at increasing ionic strength, with a continuous weakening of the first-order character up to the point where phase coexistence is difficult to detect macroscopically due to substantial critical fluctuations. (frontiersin.org)
  • pharmaceutical
  • Simple monitoring and control strategies as well as scaling-up/out approaches are proposed, concluding that membrane-based L-L separation may become a standard unit operation for continuous pharmaceutical manufacturing. (dtu.dk)
  • The use of the SMB concept in the fine chemicals separation field in the earlier 90s (pharmaceutical and biomolecules separations) is remarkable and led to the advent of a new age of SMB technology. (up.pt)
  • solid-fluid
  • Solutions of polyethylene (PE) in CO2 + n-pentane were selected as one model system to study both the solid-fluid (S-F) and liquid-liquid (L-L) phase transitions as well as the interplay of these two types of phase separations on the final morphological and thermal properties of PE crystals. (vt.edu)
  • Using our analytic potential of mean force and Barker-Henderson perturbation theory, we obtain phase diagrams for lysozyme solutions that include stable and metastable fluid-fluid and solid-fluid phases when the electrolyte is 0.2 M NaSCN or NaI or NaCl. (unt.edu)
  • APPARATUS
  • The devices are employed in novel apparatus of the invention, for the collection, separation and filtration of blood serum and blood. (google.com)
  • The devices are employed in novel apparatus of the invention, for the collection, separation and filtration of blood serum and blood plasma from clotted whole blood and anti-coagulant treated whole blood, respectively. (google.com)
  • fractions
  • Centrifugal elutriation provides a means of separating an unperturbed culture of living cells into highly enriched G1-, S-, and G2/ M-phase fractions. (biomedsearch.com)
  • Influence
  • LSRE has studied this separation process by addressing several aspects such as the comparison of different modeling strategies, the study of the influence of mass transfer resistance in the SMB performance and the development of different design methodologies, from the equilibrium theory to more accurate approaches as the Separation Volume concept. (up.pt)
  • As details of the influence of phase separation on cellular features emerge, the biological community will come to see the cell in a new light. (the-scientist.com)
  • analytical
  • Analytical, x-ray, thermal, and metallographic data have been obtained in the study of the magnesium-uranium system, and a proposed phase diagram has been constructed. (unt.edu)
  • Diagrams
  • Chart issued by the U.S. National Bureau of Standards illustrating the systematic relationships between phase diagrams of transition elements. (unt.edu)
  • structures
  • Special attention will be given to the QCD critical point and the first order co-existence region, and we will discuss how the measurement of fluctuations and correlations can help in an experimental search for non-trivial structures in the QCD phase diagram. (unt.edu)
  • Process
  • Herein, we apply a dual tomography approach, where correlative scanning transmission electron microscopy (STEM) energy-dispersive X-ray spectroscopic (EDS) tomography and atom probe tomography (APT) are used to investigate the initial phase separation process of an alnico 8 alloy upon non-magnetic annealing. (osti.gov)
  • mechanism
  • Thermodynamic equilibria alone are then used to explain a film roughening mechanism in which laterally coexisting phases can have different depths in order to minimise free energy. (abebooks.com)
  • The phase portraits are then utilised to demonstrate that simulations of lateral phase separation via a transient wetting layer, which conform very well with experiments, can be satisfactorily explained by 1D phase equilibria and a 'surface bifurcation' mechanism. (abebooks.com)
  • This system was also observed to undergo phase separation by only nucleation and growth mechanism under these conditions upon reducing the pressure at constant temperature. (vt.edu)
  • membrane
  • The property of solutions of Triton X-114 to separate into detergent-rich and detergent-poor phases at 30 degrees C has been exploited to investigate the identities of the aminopeptidases in synaptic membrane preparations from pig striatum. (biochemj.org)
  • However, only 5.5% of synaptic membrane aminopeptidase activity partitioned into this phase, although the other peptidases behaved predictably. (biochemj.org)
  • About half of the aminopeptidase activity in the detergent-rich phase could now be titrated with the antiserum, showing that aminopeptidase N is an integral membrane protein of this preparation. (biochemj.org)
  • The activity of solubilized membranes was more sensitive (IC50 = 1.6 × 10(−5) M) than that of the pure enzyme or the Triton X-114-rich phase (IC50 = 4 × 10(−4) M). We suggest that the puromycin-sensitive aminopeptidase activity that predominates in crude synaptic membrane preparations may be a cytosolic contaminant or peripheral membrane protein rather than an integral membrane component. (biochemj.org)
  • Collective interactions of multivalent molecules mediated by modular binding domains can induce gelation and phase separation in several cytosolic and membrane-associated systems. (gmu.edu)
  • phenomenon
  • Faujasite-type zeolites have been extensively studied to determine accurate equilibrium isotherms in order to fully understand the separation phenomenon and to select appropriate desorbents. (up.pt)
  • mixture
  • Since fructose index of sweetness is about twice as much as that of glucose, the separation of fructose from this mixture and recycling of glucose for enzymatic isomerization is of great commercial importance. (up.pt)
  • A â Uâ -shaped phase boundary in 92 % THF + 8 % CO2 mixture was observed to transfer to a â Wâ -shaped phase boundary at 10 wt % CO2, which was further separated into a double â Uâ -shaped phase boundary at 13 wt % CO2. (vt.edu)
  • temperatures
  • For PE solutions, it has been found that the addition of CO2 to the PE/n-pentane system shifts the L-L phase boundary to significantly higher pressures, but moves the S-F phase boundary only slightly to higher temperatures. (vt.edu)
  • It was further found that the S-F phase boundary in n-pentane displays a unique sensitivity to the pressure-temperature conditions and moves to lower temperatures in the pressure range from 38 to 42 MPa. (vt.edu)
  • thermal
  • Careful control of the base glass composition and heat-treatment conditions, which determine the nature and morphology of the crystal phases in the GC can produce GC materials with exceptional thermal, mechanical, optical, and biological properties. (frontiersin.org)
  • research
  • Biomedical science is generally broken into early phases, consisting of basic research and applied translational research or therapeutic development, and late phases, including comparative effectiveness, implementation, and dissemination research (3). (gmu.edu)
  • Fiscella describes the importance of late-phase research in. (gmu.edu)