Non-fickian (anomalous diffusivity) kinetics sorption.
Dear experts, I am dealing with the synthesis and characterization of PIR foams. In particular, I am monitoring the kinetics of these foams by FTIR (please find the spectra attached below). As...
06 July 2019 5,624 3 View
Dear experts, I am investigating how polyurethanes are affected by the degree of mixing. More in general, I am interested to study how the contact between the two reactants (in my case polyol and...
05 June 2019 4,916 7 View
Dea experts, I am working in the field of polyurethane synthesis. I would kindly ask it there is any method and/or techinique suitable to add liquid pentane (blowing agent) to the polyol phase...
05 June 2019 3,861 4 View
Dear experts, I would like to detect bubble (or cell) boundaries of polyurethane foams during their expansion. Please find attached two microphotographs of the abovementioned systems. How can I...
11 December 2018 1,132 2 View
Dear experts, I am studying bubble nucleation and growth mechanism in polyurethane foams by meaning of high-speed camera. My current issue is related to the observation of just the first layer of...
11 December 2018 9,054 0 View
A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...
11 August 2024 9,801 2 View
I need to do some experiment with it in liquid form.
07 August 2024 613 3 View
I am trying to recover liquid CO2 from a mixture of 0.6 CO2, 0.3 N2, and 0.1 O2. My aim is to recover about 99% liquid CO2 at the bottom of the column and make sure the amount of gaseous CO2...
06 August 2024 4,611 0 View
I have prepared a liquid broth containing Yeast (S. Cerevisiae) that i need to add from it to fermentation media of lignocellulosic hydrolysate. I need to know based on what parameters do we add...
06 August 2024 662 1 View
How can I measure the thickness of thin film by Uv-Vis?
06 August 2024 7,810 3 View
What is the method for analytically calculating the wear and service life of polymer-polymer sliding pairs?
04 August 2024 1,078 1 View
I conducted an adsorption experiment of arsenic on soil in the presence of different doses of silicon as competing ions to see the effect of silicon on arsenic adsorption and desorption. I took 5...
03 August 2024 6,500 3 View
Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?
03 August 2024 7,035 3 View
What is the best way to freeze the rat brain - liquid nitrogen, Dry ice , isopentane - after isolation for later protein investigation by Elisa?
01 August 2024 1,722 1 View
I need something like Camag's VisionCat software for photodocumentation of TLCs. Could you recommend something?
31 July 2024 8,415 1 View
