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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 20 of 26 for “"Cosolvent"”.

  1. An analysis of cosolvent effects in the solvolysis of bridgehead sulfonates

    Nauka, Ewa F

    sjsu Repository record

  2. Spectroscopic and thermodynamic studies of supercritical fluid solutions containing a cosolvent

    Tomasko, David LaneUniversity of Illinois at Urbana-Champaign2011

    The addition of a cosolvent to a supercritical fluid (SCF) can alter the properties of the solvent to enhance both solubilities and selectivities for particular solutes through a variety of specific and non-specific interactions. Although many cosolvent effects have traditionally been explained in …

    uiuc Repository record

  3. Metalloporphyrin catalyzed degradation of PCE: Effects of reductants, buffers and cosolvent concentration

    Suryanarayanan, Sowmya

    clemson Repository record

  4. COSOLVENT EFFECTS ON THE REDUCTIVE DECHLORINATION OF TETRACHLOROETHYLENE CATALYZED BY IRON TETRAPHENYL PORPHYRIN CHLORIDE

    Ramasubramanian, Lavanya

    clemson Repository record

  5. Removal of polymer coating with supercritical carbon dioxide

    Williams, Laurie L., authorColorado State University. Libraries2001

    … were also developed to calculate HSP's for cosolvents and polymers. With the solvent, cosolvent, and polymer thus fully characterized in terms of the HSP values, the systems are then analyzed in terms of the like and unlike (solvent/polymer, cosolvent/polymer, and solvent/cosolvent) binary …

    colostate Repository record

  6. Volumetric Properties and Viscosity of Fluid Mixtures at High Pressures: Lubricants and Ionic Liquids

    Dickmann, James ScottVirginia Tech2019

    … used in lubricants and ionic liquids, with cosolvent addition, for use in biomass and polymer processing. Experimental density data were collected using a variable-volume view-cell at pressures up to 40 MPa and temperatures up to 398 K. A unique high pressure rotational viscometer was …

    vt Repository record

  7. Photocrosslinkable polyimide and poly(imide siloxane) homo- and copolymers: synthesis and characterization

    Moyer, Eric ScottVirginia Polytechnic Institute and State University1989

    … end blocked polydimethyl siloxane oligomers in a cosolvent system of tetrahydrofuran and N-methyl-2-pyrrolidinone. These dysfunctional aminopropyl terminated siloxane oligomers were prepared through an anionic ring opening equilibration polymerization of octamethylcyclotetrasiloxane with …

    vt Repository record

  8. Developments and applications of methods for palladium- and copper-catalyzed carbon-nitrogen bond formation

    Yang, Jeffrey Chih-YehMassachusetts Institute of Technology2018

    … 3). Part I. Chapter 1. Use of a "Catalytic" Cosolvent, N,N-Dimethyl Octanamide, Allows the Flow Synthesis of Imatinib with no Solvent Switch A general, efficient method for C-N cross-coupling has been developed using N,N-dimethyloctanamide as a cosolvent for biphasic continuous-flow …

    mit Repository record

  9. Preparação e caracterização de complexos multicomponentes contendo ciclodextrinas e benznidazol

    Melo, Polyanne Nunes deUniversidade Federal do Rio Grande do Norte2013

    … and 1-methyl-2-pyrrolidone showed an action cosolvent (both solvents) and complexing (1-methyl-2-pyrrolidone). The best results were obtained with complexes involving 1-methyl-2-pyrrolidone and hydroxypropylbeta- cyclodextrin, with an increased of benznidazole solubility in 27.9 and 9.4 …

    brazil-ufrn Repository record

  10. Siloxane modified engineering polymers: synthesis and characteristics

    Summers, John D.Virginia Polytechnic Institute and State University1988

    … oligomers were quantitatively reacted in a cosolvent system. The poly(amic acid) intermediates were then cyclodehydrated employing two different thermal treatments to afford the imidized homo- and copolymers. The first imidization process, conducted on solution cast poly(amic acid) films, …

    vt Repository record

  11. Development and characterization of next generation batteries

    Shin, MinjeongUniversity of Illinois at Urbana-Champaign2020

    … and the effect of adding hydrofluoroether (HFE) cosolvent on the cycling performance of Li−S battery is discussed. In order to evaluate interactions that might change Li−S battery properties, four different HFEs with varying degrees of fluorination were examined as cosolvents in the …

    uiuc Repository record

  12. Study of Moisture and Water Effects in Low Temperature Crystallization of Perovskite Film for Efficient Solar Cells

    Dubey, Ashish2017

    … hysteresis in the devices. Use of water as cosolvent improved the film morphology, but adding up to 25 vol. % water in the precursor solution does not significantly affect the power conversion efficiency. Future work on understanding the crystallization process under varying humidity levels …

    sdstate Repository record

  13. Preparation and Evaluation of Oil-in-Water Self-Nanoemulsifying Systems with Potential for Pulmonary Delivery

    Kalra, AshishUniversity of Toledo Health Science Campus2013

    … (SNEDDS) are mixtures of oil, surfactant and cosolvent/cosurfactant, which emulsify under conditions of gentle agitation. SNEDDS can drastically improve absorption of poorly water soluble drugs by keeping it in solubilized form at the site of absorption. The objective of the study was to …

    ohiolink Repository record

  14. Palladium reagents for bioconjugation

    Rojas, Anthony J. (Anthony Jose)Massachusetts Institute of Technology2018

    … and physiologically relevant conditions. The cosolvent-free aqueous conditions were applied to the conjugation of a variety of biomolecules with affinity tags, heterocycles, fluorophores, and functional handles. Additionally, bispalladium reagents were used to perform macrocyclization of …

    mit Repository record

  15. Biopharmaceutical approaches for improved drug delivery across ocular barriers

    Hippalgaonkar, Ketan2020

    … in comparison to the solution formulations (cosolvent and HPβCD based) tested. </p> <p>Furthermore, for the first time, studies in anesthetized male New Zealand rabbits demonstrate that topically applied P-gp inhibitors can diffuse to the RPE and alter the elimination kinetics of a …

    mississippi Repository record

  16. THERMODYNAMIC PROPERTIES OF THE UNFOLDED ENSEMBLE OF PROTEINS

    DESAI, TANAY MAHESH2010

    … residues of the protein with the solvent and the cosolvent (direct interactions), and the properties of the solution itself (indirect interactions) are together critical to the unfolded chain's properties and have been quantitatively estimated. Unfolded, protonated BBL can be refolded by tuning …

    maryland Repository record

  17. The rational design of dermatological formulations

    Watkinson, Rebecca MaryUniversity of Greenwich2005

    … determined and demonstrated how the addition of cosolvent could impact upon the permeation of the two weak acids by altering the ionisation state of the permeants. The cosolvents, (typical formulation excipients) were water, propylene glycol ethanol, mineral oil, miglyol and Transcutol . To begin …

    greenwich Repository record

  18. Structure-property behavior of elastomeric telechelic ionomers in bulk and solution

    Tant, Martin R.Virginia Tech1986

    … equilibrium between the ionic groups, the polar cosolvent, and the nonpolar solvent. More concentrated solutions or gels in nonpolar solvents display a unique viscoelastic behavior which is very dependent upon architecture, molecular weight, and neutralizing cation. Solutions of ionomers (5 g/dl) …

    vt Repository record

  19. Development of Novel Methodologies for the Electrodeposition of Polypyrrole-based Films in Controlled Morphologies with Potential Application in Nitrate Sensing.

    McCarthy, Conor P.National University of Ireland Maynooth2013

    … procedure was developed using an emulsion in a cosolvent mixture. Adsorbed toluene droplets were employed as soft templates to direct polymer growth. The microstructures only grew in the presence of both ClO4 - and H2PO4 - doping ions, due to a slower rate of polymer propagation in this …

    maynooth Repository record

  20. Preformulation and Formulation Development of a Novel Radioprotectant Drug

    Fernandes, ParinaCreighton University2007

    … can be enhanced by increasing the pH, by using cosolvent systems, and by complexation agents like cyclodextran. A suspension formulation was developed using 0.1M Potassium phosphate monobasic, 1% Tween 80 and 0.15M sodium chloride. The stability data of the drug indicates that there is less than …

    creighton Repository record

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