Polymer Chemists' Network | Contact experts in Polymer Chemistry to get answers
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Questions related to Polymer Chemistry
On what characteristic, I can differentiate between these three adsorption isotherms: Langmuir, Temkin, and Freundlich ? Sincerely
18 March 2021 4,280 10 View
The best fit I found for this case was a [R(Q[RW]R)] but one of the resistances presents a negative value. What is the interpretation for a negative resistance in a Nyquist Equivalent Circuit? The...
11 March 2021 7,708 5 View
In my research, I am trying to produce an electrospun mat with a blend of PAN/PANi. However, I have found in the literature that they use aniline (distilled), emeraldine salt, or emeraldine base...
01 March 2021 7,544 2 View
I would like to prepare an emulsion of water and silicone oil. So need to know the best surfactant that can be used as the stabilizer.
01 March 2021 2,939 5 View
Hi, I have some difficulties with handling microsphere (40nm diameter latex beads). I have to wash the beads before using it, but many protocols suggest I do centrifuge the beads, discard the...
02 February 2021 8,929 1 View
I need to prepare a 40% KOH solution using KOH pellets and DH20 water.
02 February 2021 7,602 2 View
Basic dendrite formation of metallic alloys are explained by thermal and constitutional degree of supercooling and most-supercooled band of liquid somewhat ahead of solidification front that...
31 January 2021 8,689 2 View
It is known that the physical and chemical properties of recycled plastic and virgin plastic are almost the same. So, is there any way to tell them apart? Is there no way to distinguish using...
27 January 2021 5,499 7 View
To check Plugarsim of an article, what is the configuration in filter and setting for the following parameters in Turnitin Set source exclusion threshold Word count 5 words What is the word...
26 January 2021 9,451 8 View
I am looking some resist strippers which can easily remove metal based polymer residue after post dry etch process. I have some candidates below but not sure if they are compatible with doped...
22 January 2021 3,205 3 View
According to Fick's law for short time, M_t/M_∞ =4/h √(Dt/π) Mt vs. square root of t is plotted and the slope is substituted in the above equation along with saturation water uptake (the...
12 January 2021 3,305 8 View
I am studying arsenic biotransformation by bacteria and I need to check the morphological changes on the bacterial cells after exposure to arsenic. I also need to check if there's any arsenic...
07 January 2021 3,141 4 View
There is a dopant for the vhb 4910 actuator tapes that have acetylene black or carbon black which is carbon grease (carbon black + pdms) commercially, I am making a robotic actuator but I don't...
31 December 2020 3,286 1 View
When using electron blocking electrodes, if the ionic conductivity of the test sample is much higher than that of the electron blocking electrodes,then how to measure the ionic conductivity of a...
27 December 2020 5,417 2 View
Hii, I wanted to check the viscosity and elasticity of the cells. Can we study it using rheometer or any viscometer. Please suggest a method for viscosity evaluation.
21 December 2020 4,477 3 View
Hi! We are aiming to bind streptavidin to polyacrylamide surface. The EDC/NHS method bounced on me as a common method, utilizing the -NH2 of polyacrylamide and -COOH of streptavidin. Is there any...
18 December 2020 8,087 2 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!
11 December 2020 4,191 3 View
Hello, I am trying to use this mechanical vibration signature generator.
08 December 2020 8,627 1 View
I am performing cDNA synthesis in situ in HELA cells with Biotin-labeled RT primer. I want then to lyse the cells and capture the biotin-labeled cDNA on streptavidin beads. I am wondering if using...
07 December 2020 6,005 3 View
I have polymerized emulsions consisting of Methyl Methacrylate, Butyl Acrylate and Methacrylic Acid (around 20 degrees C Glass transition temperature) in various surfactant systems. I have found...
03 December 2020 8,414 6 View
I know that ZIFs (Zeolitic imidazolate frameworks) are a class of MOFs (Metal Organic Frameworks) but what is so special about ZIFs that encouraged scientists to open a class for these structures?
02 December 2020 4,109 9 View
Hi all, Im trying to calculate the strength of intramolecular hydrogen bond. which software do i need to use? and basic examples please? I appreciate if you can help me. Thank you in advance.
02 December 2020 8,219 9 View
It is welcomed to introduce any published paper in this respect.
27 November 2020 3,775 3 View
Can anyone share their experience of Bioprinting Alginate-Gelatin Bioink. Specifically, what temperature and pneumatic pressure are optimum for this combination to achieve a good resolution while...
27 November 2020 6,956 3 View