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 7,595 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 1,592 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 8,949 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 3,148 2 View
Applications of photoreversible systems
01 February 2012 647 1 View
Incompletely cross-linked pdms are difficult to remove.
01 March 2021 798 3 View
Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...
28 February 2021 7,882 2 View
I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...
28 February 2021 298 3 View
I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...
25 February 2021 2,615 3 View
I want to remove PDMS oligomers from the surface of nanolayers. I have just read a very helpful paper about the compatibility of PDMS with different solvents( Solvent Compatibility of...
24 February 2021 7,845 5 View
Hi! I am looking for some specific information in regards to the minimum amount of UV intensity required to begin the photo degradation process in polymers. I understand each polymer is...
15 February 2021 7,703 4 View
I had treat my XRD diffraction pattern by Highscore to calculate the crystallinity degree Xc and I have the formula but I dont no the 2Theta of Ac and Aa to calculate Xc. Is it like polymers...
10 February 2021 6,305 5 View
I am modeling CFRP laminated a concrete column in Abaqus And I need Elastic and plastic properties of CFRP
09 February 2021 4,930 5 View
Dear colleagues. How can we implement the kinetics of the polymerization of aromatic amines in easier and simpler ways? Are there simpler methods for Nano polymers (other than those obtained with...
09 February 2021 5,783 3 View
I am looking for gas permeability of PDMS for simulation in COMSOL MultiPhysics and using creeping flow , fluid and matrix properties. The permeability unit in COMSOL is m^2 whereas I have the...
08 February 2021 4,305 2 View