Browsing by Subject "Kinetics"

Now showing items 1-8 of 8

    • A model for defect formation in materials exposed to radiation 
      Davis, Sergio; González Cataldo, Felipe Andrés; Gutiérrez Gallardo, Gonzalo Javier; Avaria, Gonzalo; Bora, Biswajit; Jain, Jalaj; Moreno, José; Pávez, Cristian; Soto, Leopoldo (American Institute of Physics, 2021)
      A simple model for the stochastic evolution of defects in a material under irradiation is presented. Using the master-equation formalism, we derive an expression for the average number of defects in terms of the power flux ...
    • Association Efficiency of Three Ionic Forms of Oxytetracycline to Cationic and Anionic Oil-In-Water ... 
      Orellana, Sandra L.; Torres Gallegos, César; Araya Hermosilla, Rodrigo; Oyarzún Ampuero, Felipe; Moreno Villoslada, Ignacio (John Wiley, 2015)
      The association efficiency of oxytetracycline (OTC) to pharmaceutical available, ionic oil-in-water nanoemulsions is studied. Theoretical mathematical developments allowed us to differentiate by diafiltration (DF) between ...
    • Insertion and expulsion mechanism of an amphiphile in a membrane mimetic 
      Ruiz Fernandez., A. R. (Amer Chemical SOC, 2018)
      A theoretical study, validated with experimental data, on the mechanism of insertion/expulsion of an amphiphile from its aggregate is presented. Using molecular dynamics (MD), the equilibrium of tetradecyltrimethylammonium ...
    • Mechanistic insights into the ANRORC-like rearrangement between methylhydrazine and 1,2,4-oxadiazole derivatives 
      Gallardo Fuentes, Sebastián; Contreras Ramos, Renato (Royal Soc Chemistry, 2015)
      We herein present the first in-depth theoretical study devoted to elucidate the mechanism of the reaction between 1,2,4-oxadiazole derivatives and methylhydrazine. For this purpose, the reaction between methylhydrazine ...
    • Quasi-isothermal DSC testing of epoxy adhesives using initial fast heating rates 
      Puentes, John; Restrepo Zapata, Nora; Chaloupka, Alexander; Duddleston, Lukas J. L.; Rudolph, Natalie; Osswald, Tim A. (Wiley, 2017)
      Three major factors decrease the accuracy of the cure measurement in standard-isothermal testing using differential scanning calorimetry (DSC). First, cure occurs during the heating step. Second, data are lost during the ...
    • Solvent effect on a model S N Ar reaction in ionic liquid/water mixtures at different compositions 
      Sánchez, Bruno; Calderón, Cristian; Garrido, Constanza; Contreras Ramos, Renato; Campodonico, Paola R. (The Royal Society of Chemistry, 2018)
      The reaction of phenyl 2,4,6-trinitrophenyl ether and piperidine was kinetically evaluated in BMIMBF4/water mixtures as the reaction media. This study shows the dramatic effect of the mixture composition on the reacting ...
    • Temperature effects on the diffusion of lithium in MoS2 
      Santa Ana, María Angélica; Sánchez, V.; González Moraga, Guillermo (1995)
      The diffusion coefficients of lithium in LixMoS2 (0 < x < 0.43) compounds were determined at different temperatures by the galvanostatic-pulse relaxation technique. In the temperature range studied, the diffusion ...
    • Unraveling the selectivity patterns in phosphine-catalyzed annulations of azomethine imines and allenoates 
      Gallardo Fuentes, Sebastián; Ormazabal Toledo, Rodrigo; Fernández, Israel (American Chemical Society, 2020)
      The mechanism and selectivity of phosphine-catalyzed [3 + 2] and [3 + 3] annulations of azomethine imines and allenoates have been computationally studied. Exploration of the potential energy surface reveals that the ...