The reaction of Bis(epoxy methyl adipate( alicyclic epoxy resin) reacts with acrylic acid? but the reaction is not taking place due to the catalyst? Anyone recommend me appropriate catalyst that could activate the reaction?
MDI-Epoxy Resin is synthesis at different parameters as I took different molar ratios of MDI with Epoxy, after getting the desired NCO%, I moved to the second step in which I added the calculated...
13 June 2023 2,747 1 View
Currently, we are doing some experiments on polyurethane, we took HDI with epoxy at certain molar ratios. usually, the NCO% decreases with time but at one condition the NCO% increase with an...
15 May 2023 2,086 3 View
Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.
07 August 2024 8,782 3 View
Dear readers, Thanks for your attention. I am wondering about the health economic problem of quantifying the value of interventions which a) prevent, b) improve symptom profile and c) ultimately...
05 August 2024 3,246 1 View
Metal-containing heterogeneous catalysts often need to be calcined before reduction, so what are some examples of catalysts that perform better without calcination? What is the reason and how many...
05 August 2024 909 2 View
I am attempting to conjugate PEG to an amino acid at the C-terminus, for the purposes of producing nanoparticles. I have been told that PEG modified with amine groups can be used for this purpose,...
31 July 2024 2,033 1 View
Hi, researchers, Is it possible to use a safer acid instead of monochloroacetic acid to convert bacterial cellulose to carboxymethyl cellulose?
29 July 2024 4,570 0 View
I am currently performing cell-free DNA (cfDNA) extraction from plasma using an in-house developed kit that employs silica-coated magnetic beads. My protocol works effectively with plasma obtained...
28 July 2024 3,559 0 View
In my molecule there is Chloro group at 2-position of phenyl ring, but in 2D image it appears as methyl showing no interaction.
28 July 2024 734 0 View
FYI Catalyst is MFI zeolite Si/Al = 140,25.40.11.5,15 I am using this catalyst to study methanol to DME conversion
25 July 2024 2,486 2 View
Hello everyone, I am currently working on a protein that is 10x his-tagged and positively charged (predicted pI=10.16). But when I tried to use Ni-NTA column to purify the protein, it's not...
24 July 2024 7,293 4 View
I have been looking for the principle of Cysteine-carbazole-sulfuric acid reaction in research papers and books, but couldn't find it. This reaction is mainly used for the quantification of...
23 July 2024 3,891 0 View