I know enzyme catalyzed reactions and Ti(OBu)4 catalyzed reactions make such polyesters with siloxanes (PDMS), but are there any other methods?
When making gels from polyacrylamide, what kind of properties of the gel I should monitor in order to make sure that I am consistently producing the same every time? Any suggestions? Thank you
07 August 2017 7,669 0 View
I have a material containing coumarin in it. When my collaborator takes fluorescence microscopic images of the material using DAPI filter, he mentioned me that the sample is photobleaching. As a...
31 December 2012 1,677 11 View
I am looking for photodegradable polymers which are commercially available and cheap. Please let me know if you are aware of such polymers.
31 December 2012 9,028 2 View
The monomer (di alcohol) is not soluble in chloroform or dichloromethane, and the solubility of di-isocyanate is not an issue. I am using tin octonate as catalyst.
11 December 2012 3,223 2 View
Applications of photoreversible systems
01 February 2012 737 1 View
What is the method for analytically calculating the wear and service life of polymer-polymer sliding pairs?
04 August 2024 1,078 1 View
Hello everyone, I am try to understand the differences interaction between insoluble and soluble polymers in water with metal ions and how theit charge density (of metal ions) affect the interaction.
29 July 2024 6,350 3 View
Wherever I have referred, it puts me in a dilemma about the exact differences between these. It would be really helpful if someone can put me out of this trouble.
21 July 2024 3,045 3 View
For which types of polymers, the crystallization peak in heating cycle of DSC test can be observed and for which types cant? In another word, when this exothermic crystallization can be observed...
18 July 2024 348 3 View
Hello everyone, I am currently pursuing a PhD in Environmental Engineering with a focus on microplastic studies. My background is in Civil Engineering, and I am relatively new to working with...
18 July 2024 7,258 3 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
I use PDMS to build a microfluidic system, but it is not hardening at all, although I use TEOS as a cross-linker and also ATPES in a ratio of 1:10, and it's been 3 days at 80 degrees of 3 ml cast...
01 July 2024 604 3 View
1- Please provide information about the chemical composition of curing agent for PDMS(Sylgard 184 Kit)? 2- what dry solid percentage is obtained for a ratio of 10 to 1(PDMS to hardener)?
30 June 2024 6,814 2 View
Dear All, I want to cut PDMS sheet with thickness of 0.8 mm to rectangular shape with Graphtec cutter plotter CE6000-40. What condition do you offer? Do you offer any kind of special speed or force?
25 June 2024 8,111 1 View