Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules... | Contact experts in Polymers to get answers
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Questions related to Polymers
I prepared some copolymers containing SBMA block. Can I purify the SBMA-containing polymers via precipitation? If so, what is the ideal nonsolvent to precipitate the polymer?
28 August 2021 9,950 6 View
I would like to know the changes in crystallinity of polymer film, caused by biological degradation. As of my basic knowledge acquired by other literature, either FT-IR or XRD analysis can show...
27 August 2021 9,050 5 View
Hello, if I perform an FTIR analysis of a polymer mixture in brine? I can still determine whether there is an interaction between polymers? For instance, an ftir analysis for HPAM and Xanthan gum...
25 August 2021 6,553 3 View
Which is more biodegradable, HPAM or PEO? I know both polymers are biodegradable but which is more? Thank you.
23 August 2021 5,360 2 View
The image is taken From Callister's Materials Science and Engineering. After glass transition, the polymer chains are mostly free to rotate and wiggle, but cannot slide past each other until...
22 August 2021 8,772 3 View
If there exists such relation, then why is this so? If such relation doesn't exist, than which molecular factors contribute to endurance limit of polymers? The image of Stress vs Fatigue cycle is...
22 August 2021 5,432 3 View
I want to remove the photoresist after the lithography process. I don't want to use a photoresist stripper or acetone. So, I thought of a way to remove the photoresist by exposing the entire...
21 August 2021 6,707 3 View
because the pdms with benzonyl peroxide, as the article says, does not crosslink the polymer pdms without any dopant at 150 degrees 160, 170 and 180 degrees, there is some other crosslinking agent...
20 August 2021 409 2 View
Hello All, I want to conduct some experiments with high molecular weights PVPh, however the available molecular weights on Scientific Polymer Products, Polymer Source. Inc. and any other such...
17 August 2021 6,412 6 View
Hi, I've browsed around and couldn't find any companies selling self-healing polymers on a commercial scale. Would anyone here happen to know?
14 August 2021 619 3 View
EMI shielding, Composite, Polymer
12 August 2021 2,876 4 View
I'm trying to etch TiO2 film by RIE. There is 200nm thick photoresist(Shinetsu, SEPR-701) structure, under that there is bulk Anti reflection coat layer(Brewer science, DUV-252) of 100nm,...
11 August 2021 5,025 2 View
Hello all, I would like to understand the laser intensity and temperature at the heat-affected zone at the polymer interface. Is there any formula or engineering table or relation between the...
10 August 2021 7,369 3 View
Imagine I mix those two polymers together and want to dissolve only one of the mentioned polymers. What are the best options I have for a solvent? This is not my field of expertise, so any tips...
10 August 2021 7,750 3 View
I'm working on a project in our group that requires synthesis of non-stoichiometric nickel oxide (NiOx) nanoparticles through the chemical precipitation method, as described here:...
09 August 2021 8,705 12 View
I purchased the vector pMynt-Kan from addgene. It is used for mycobacterial heterologous expression. The map does not show RBS in its features. Could anyone please tell me how to identify the RBS...
03 August 2021 990 0 View
I am using an intel core i5 and 4GB RAM computer to calculate DFT (6-31G basis set) calculations for C, N, S based polymers. I have GaussView 6.0 and Gaussian 09 Revision-D0.1 SMP. So, does anyone...
29 July 2021 8,888 2 View
I am interested in measuring the zeta potential of the polyethylene particles in water. Can I measure it in the form of suspension (PE+ water) or solid particles only ? Any reference material...
29 July 2021 6,572 4 View
Dear all, we are trying to impregnate a porous ceramic body with furfuryl alcohol to get as much carbon as possible upon pyrolysis Any suggestion on how to handle the procedure? I mean...
29 July 2021 7,448 4 View
Hi everyone, Recently, we have had a critical situation regarding water-resistance of one of our pressure-sensitive adhesives formulations. Water-resistance is measured by rubbing with a finger...
26 July 2021 3,935 2 View
I gone through few literature I got the possible answer for Hansen's Solubility Parameter (HSP) for solvents and Polymer. I am searching the HSP value of BaTiO3. But I did not get any suitable...
26 July 2021 8,206 8 View
Hi everyone! I would like to hear your recommendations about the best chemical software to design polymers.
22 July 2021 892 3 View
If epoxy is cured at low temperature to 50% degree cure, then further cured to 100% at higher temperature, how will that be different than curing to 100% at the higher temperature? Similarly, how...
21 July 2021 8,025 5 View
I am doing research Laser Transmission Welding of Polymers. Could anyone please guide me through the procedure to experimentally analyse the weld depth in welded polypropylene samples? Do we need...
14 July 2021 1,508 3 View