Is there any instrument to determine it?
Dynamic mechanical thermal analysis (DMTA).
Hi, I have a commercial epoxide material. It contains 10 mol% diol impurity in it. If anybody has information about the separation of the diol impurity from epoxide material, please share with me.
11 December 2015 370 8 View
Generally, polyesters which are synthesized by the reaction between diacid and dialcohol, are some sort of yellow or dark colour. Is it possible to stop this discolouration during polyester synthesis?
09 October 2015 7,551 4 View
In general, self-healable coatings are synthesized by incorporating the nano/micro capsules (consist of reactive monomers) into the formulation. I would like to know if there is any coating which...
11 December 2014 6,477 3 View
What is the reason for this quenching ?
08 September 2014 7,845 5 View
Generally metal oxide nanoparticles like ZnO, TiO2, SiO2 etc. have surface hydroxyl groups. what could be the reason and is it possible for them to participate in hydrogen bondings?
08 September 2014 7,485 9 View
If a polymer film is showing high shape recovery property in the tensile mode what could be the expected application?
08 September 2014 5,880 7 View
We have synthesized a polymeric coating with pyrene units. It is showing fluorescence in UV region and not showing in visible region.
05 June 2014 2,477 1 View
What are the fluorescence applications of a polymer in the UV region (not in visible region)?
01 February 2014 5,764 1 View
Can ZnO cause fluorescence quenching?
09 October 2013 5,477 1 View
A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...
11 August 2024 9,801 2 View
How can I measure the thickness of thin film by Uv-Vis?
06 August 2024 7,810 3 View
Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?
03 August 2024 7,035 3 View
I need something like Camag's VisionCat software for photodocumentation of TLCs. Could you recommend something?
31 July 2024 8,415 1 View
Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...
30 July 2024 906 2 View
My final research is about making chitosan/pva hydrogel for wound healing using gelatin as crosslinker. Last month, i made the thin film hydrogel and it turn well. It was okay. Last week, i make...
28 July 2024 2,794 6 View
Please, what is the memory consumption of the Matlab function quad tree decomposition procedure [S = qtdecomp(I)] with respect to the input set I?
27 July 2024 5,455 2 View
I know that films and other low-thickness laminated products are produced using biaxial orientation, but is there something similar for sheets with a thickness of around 6 mm? Or are they...
21 July 2024 1,559 1 View
I work with planar interdigitated electrodes (IDEs). The finger width and the spacing between the fingers are 5 micron. The surface of the IDEs is coated by a non-conductive polymer layer...
16 July 2024 5,031 1 View
We're studying the stability and fusion behavior of multiple PVC compounds in a Brabender. After a few trials, we set the temperature at 195 °C and the rotor speed at 70 rpm. Samples differ in...
12 July 2024 2,768 1 View
