Is it possible to prepare polymethylmethacrylate from methacrylic acid and methanol monomers?
To produce Methacrylic Acid is more complicated than to produce Methylmetacrylate. Have You any experience in Organic Chemistry?
Ransomware attack has become a common criminal pattern, but the governance of countries basically focuses on fraud and computer crime. Dear colleagues, I would like to ask you how the definition...
21 May 2024 262 8 View
I prepare the precursor with both hydroxy and Nitrogenous group on the side chain by RAFT. Then, through the method mentained in the following literature that add AIBN to wipe off the residue of...
11 May 2024 2,941 0 View
使用购买的EVA(VA含量40%)产品,在甲苯溶液中溶解,然后添加了氢氧化钠和醇的混合溶液,浓度大概有1mol/l和0.25mol/l的。 产品测试红外结果较为正常,但是在DMSO中一直无法溶解,困扰了很久。有没有做这方面研究的大佬可以解答一下或者讨论一下。是否自己合成的EVA再去做EVOH会好溶于dmso一些。
21 December 2023 7,565 0 View
The purchased EVA (VA content 40%) product is dissolved in toluene solution, and then a mixture of sodium hydroxide and alcohol is added, the concentration is about 1mol/l and 0.25mol/l. The...
21 December 2023 8,974 3 View
I’m currently conducting research on telomeres in THP-1 cells. During my gel electrophoresis experiments using a 1% gel, I’ve encountered an issue where the DNA seems to be stuck at the top of the...
29 October 2023 9,561 7 View
How to dissolve styrene-acrylic resin pellets(BASF Joncryl684) into a water/1,2-butanediol mixed solution to prepare an emulsion?
29 October 2023 2,745 0 View
I dissolved the styrene acrylic resin (molecular weight 1500): 1,2-butanediol = 3:5(weight ratio), added the emulsifier, and then slowly added it to the water containing the emulsifier using a...
27 October 2023 3,341 0 View
When I was doing a blend of two polymers, I determined from the literature that a cross-linking reaction with hydrogen bonding would occur between them. Hydrogen bonding occurs when a hydrogen...
25 September 2023 5,492 1 View
Hi. I am looking for the code of this article Phys.Rev.Lett. 111 (2013) 3, 032501. It is useful for our many-body calculation. Notice: I am not looking for the code of how they calculate the...
24 September 2023 4,566 0 View
I prepare the composite film by fixing the support layer on a flat and smooth glass plate and then applying the casting solution using a wire rod or a wet film preparer. I would like to ask what...
24 September 2023 1,365 0 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
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
Kindly share a research paper that explains the effect of Methanol and ethanol treatment on collagen based scaffolds. How it increases porosity and swelling. Kindly help me find a paper. Thank you
24 July 2024 3,937 0 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
Sulfuric acid has changed color to yellow.
16 July 2024 6,964 0 View
im studing gaussian 16 with reading paper about I-131 Metaiodobenzylguanidine in the paper "In a similar vein, nuclear magnetic resonance shielding values were investigated using the widely...
16 July 2024 6,040 4 View
Hi, Attempted to extract cfDNA from a 4 mL plasma sample, with poor yield. Went through the manual in the section regarding poor yield, and feel that this does not apply. Some potential...
14 July 2024 7,475 1 View