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
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 477 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 5,901 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 5,568 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 1,973 0 View
FR4 1.6 mm is easily available but 0.8 mm thick is rarely available.
16 August 2022 4,863 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 7,886 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 5,307 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 4,038 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 5,058 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 5,263 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 2,366 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 8,562 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 5,959 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 9,519 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 6,417 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 4,797 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 7,964 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 3,361 2 View
I've been trying to the synthesis of Al2O3 fiber with electrospinning method with Aluminum isopropoxide as precursor, but Al2O3 fiber is broken after calcination. Can anyone guide what could be...
18 May 2022 3,902 3 View
Can anyone please help me out how to isolate RNA from cultured neutrophils isolated from human peripheral blood. I am using chloroform/phenol method. I got 10-30ng/ul ofRNA from 3-4 million cells....
10 May 2022 4,448 0 View
During a process of polyester staple fiber production, while the IV (intrinsic viscosity) of PET granules is within 0.63-0.64 dl/g, the IV of as-spun fiber output from spinneret is around...
22 April 2022 9,236 3 View
Hello, I need to synthesize a lithium-rich cathode using the sol-gel method. What is the best molar ratio between citric acid and transition metals in this method? Does citric acid have an effect...
20 April 2022 9,322 9 View
Hi, I want to do tensile analysis for my vulcanized rubber sample following the ASTM 412/ ISO 37. My starting rubber was ENR latex. As stated in that standard type 1, the standard thickness should...
13 April 2022 3,884 6 View
I am about to synthesis and characterize a bone scaffold to be used for bone regeneration and bone cancer therapy with the ability to release drug and oxygen for a better functionality, which...
05 April 2022 5,708 6 View