I'm trying to synthesis a porous polyimide from the reaction of melamine and pyromellitic dianhydride and faced some problems in interpretation of its IR spectrum.
Dear all, Are there anyone send me a standard (ASTM) procedure to determine the solubility of a prepared polymer at aqueous buffer solution? We are trying to prepare an aqueous soluble polyimide...
31 December 2015 8,155 9 View
I'm trying to buy Ubbelohde Viscometer from Cannon Glass CO. to measure a viscosity of one prepared polymer. According to this company the size was terminated as 0, 0C, 0B, 1... etc.So which size...
07 August 2014 2,996 3 View
In my lab. I prepared a difunctional monomer, which contains two similar vinylic groups. Is there more than one exotherm that represents the homopolymerization and crosslinking polymerization...
31 December 2013 2,769 4 View
Are there any method for quantitative and qualitative determination of UV absorber in polyethylene bags, sheets, pipes and others?
01 February 2013 7,241 3 View
Require for Rietveld refinement in XRD.
08 August 2024 3,081 2 View
Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?
06 August 2024 980 5 View
Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...
05 August 2024 3,783 2 View
Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.
31 July 2024 9,140 2 View
Hello everyone, I am new to this characterization but watching videos on youtube I have already plotted a Nyquist plot (Z' and -Z'') and already fitted models on my material using Zsim. But now I...
29 July 2024 1,376 0 View
While I am doing HER, I noticed that nyquist plots of Electrochemical Impedance Spectroscopy (EIS) is not complete. Will it affect for the Linear Sweep Voltametry (LSV) data? However, I can found...
26 July 2024 7,542 4 View
In the context of Electron Spin Resonance (ESR) spectroscopy, under what conditions is an absorption spectrum considered to be a single absorption spectrum?
25 July 2024 2,325 1 View
Though much literature suggests fitting a Voigt profile on a LIBS peak, is it also possible to fit a Gaussian profile on the LIBS peak? I have 204 spectra files, and I am building a pipeline for...
23 July 2024 6,127 1 View
I am trying to drop cast 2D Materials on Glassy Carbon Electrode for Cyclic voltametry and EIS purpose. What would be best binders to use?
23 July 2024 5,776 2 View
I was performing estimation of Total Soluble Sugar content in bacterial cultures by Anthrone method. Out of 9 samples, only one sample showed positive reading while others had a negative reading...
22 July 2024 9,576 4 View