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
Can someone explain the following terms? ethanol (2X): what is alternative case it? PTFE membrane with a 0.45 micro meter pore size: what is alternative case it? polyester fiber (Carpenter Co.):...
25 December 2022 448 1 View
I am not a specialist in molecular docking, but the applications interest me. I would like to know if it is possible and interesting to perform molecular docking of a mixture of molecules on the...
30 November 2022 1,279 0 View
I need to make low cost reflectance calibration samples. I plan to apply special paints on a plywood board. For high reflectance, BaSO4 paint works well, but I can't find low (10%) reflectance...
08 November 2022 5,107 3 View
I want to purify TEMPO radical. For this purpose I want to sublime it. Can anybody please give me any reference at which condition I can sublime it? Thanks in advance Sandipan
30 October 2022 1,202 5 View
Hi all, Which the following equations are used to calculate the thermal stress in polymers? What is their difference? 1- σ = EαΔT/(1 – μ) 2- σ = EαΔT
07 October 2022 208 1 View
The milled carbon fiber is uniformly dispersed in the matrix.
03 October 2022 1,518 2 View
Is it necessary to clamp the polymer electrolyte in between ion blocking electrodes in the presence of Ar atmosphere. If yes, what will be its expected effects?
13 September 2022 487 2 View
1 . I want to calculate the strain energy density . 2 . For strain energy density I need the volume of every element . 3 . And also want the X ,Y and Z location and probably the centre of mass...
09 September 2022 5,914 2 View
Hello! We are trying to electrospin SiC fibers for some applications. In every study mentioned in the literature, they used the chemical I mentioned in the question. But I couldn't find any...
31 August 2022 5,575 2 View
Dear researchers, How to fabricate a pilot-scale flat sheet superhydrophobic PVDF membrane using commercially available materials? Thank you so much. Best regards
28 August 2022 1,981 0 View
FR4 1.6 mm is easily available but 0.8 mm thick is rarely available.
16 August 2022 4,874 1 View
Dear All, I'm looking for a suitable and a simple software of Chemometrics technical, as effective tools and how can i use?
13 August 2022 7,893 7 View
Hi. I am currently designing an experiment based on X-ray scattering and I was looking for a way of introducing some microvoids into a water solution. Hollow glass or polymeric microspheres may...
11 August 2022 5,318 5 View
in Pakistan, we have a very frequent power breakdown due to which I am unable to perform long explicit analyses. Can anybody help me with how the recovery option works in Abaqus? I have tried it,...
03 August 2022 4,046 0 View
Compression test to composite materials needed to be simulated by Ansys but the material doesn’t exist in Ansys library
28 July 2022 5,069 2 View
I am trying to build a DEA soft robot actuator using VHB/silicone and carbon grease, it's now operating in HVDC 6~7 KV, but people already achieved
25 July 2022 5,274 3 View
Why is tensile strength more important in joint strength analysis of Friction Stir Welding (FSW)? Why not other mechanical properties, such as yield strength, ductility, etc., are considered in...
25 July 2022 2,373 7 View
Good afternoon, I am trying to prepare solution for electrospinning with PEO,H2O and NaCl. The MW of PEO is 1,000,000. At the beginning I add 1,25% NaCl to 95,75% water under 25°C stirring, then...
25 July 2022 8,570 2 View
Molecular weight of DNA, is it same for 200 bp DNA having 67%AT or 200 bp DNA having 67% GC?
20 July 2022 5,967 1 View
how to prepare a BSA stock solution, then how to dilute it to 10%? and sould i dilute it in PBS or water ?
18 July 2022 9,543 4 View
Hi！ I am trying to etch Titanium dioxide 100-400nm diameter and 700 nm tall, Smooth and vertical sidewalls are important, does anyone have a starting recipe I can try? The following...
21 June 2022 6,422 0 View
How can one determine oxygen non-stoichiometry for ABO3 perovskites using XPS? Take for example, Ba0.5Sr0.5Co0.8Fe0.2O3-d. I will be glad if anyone could clearly and succinctly explain it. Thank...
12 June 2022 4,815 6 View
I have a 3D printed mold that I am using for transferring microfluidic features onto a thin PDMS membrane (~200 um). During the peeling-off process, either the features deform or the membrane...
08 June 2022 7,972 3 View
I have three different polycaprolactones - PCL (different amounts of branches). I had modified these PCL-s by chemical modification. I would like to see if the changes were made. Can I see in NMR...
23 May 2022 3,369 2 View