by GP%=w1-w0/w0
GE%=w1-w0/w2
please with example and numbered application?
During my work in the laboratory, I noticed that fructose, starch and dextrin did not give positive results with their statements such as iodine and sulwanof when prepared 3 to 5 days ago. Why?
25 December 2020 8,390 5 View
I have synthesized PNIPAM (Poly (N-isopropylacrylamide)) microgels, which are copolymerized with oligo-ethylene glycol based comonomers. I have to determine the exact number concentration for each...
19 February 2021 5,205 5 View
I have 2 excercise about determining composition of monomers (%) in the copolymer by H NMR. There are images of excercise. Can anyone help me solve it? Thank you!
10 December 2020 4,078 3 View
I have Fluorescent Polystyrene beads. I need to graft PEG on the surface of it. I am looking for a protocol to do that. Also need to know which experiment to perform to be sure about the grating.
01 December 2020 7,860 1 View
Dear colleagues! Recently I tried to dissolve commercially available samples of PAN precursors (acrylonitrile-methyl acrylate-itaconic acid terpolymers) in water solutions of sodium thiocyanate...
17 October 2020 6,083 4 View
I have just started to gain basic information about gas sensing materials. So here, I want to know what materials are in touch nowadays for efficient gas sensing, and what are the corresponding...
11 May 2020 5,277 1 View
Hello! I would like to understand in what cases blood or some other biological liquid passes through implant or graft with some porous microstructure according the Darcy law (thanks to the...
26 March 2020 8,670 14 View
I am working on a pour point depressant synthesis project and I already went through a lot of papers but not a single one mentioned using side chain monomer in the grafting process longer than...
19 January 2020 5,036 1 View
31 December 2019 3,404 1 View
Hi, I graft the cy5 to the Polymer, then dialysis the polymer-cy5 to remove the free cy5. then make the nanoparticles as before, but the nanopartcile is unable to detect the size. Do you know why?
11 December 2019 919 3 View
Hello, I have grafted a layer of epoxysilane on a thermoset silane-crosslinked polyethylene. The thickness of the grafted layer is below 30 nm and the thickness of the crosslinked polyethylene...
11 December 2019 7,565 2 View