Hydroxyl value determination for polyesters
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
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 trying to find methods for theoretical calculation of enthalpy of formation of Polymers. till now I have found the oligomeric method (Gaussian) which uses the extrapolation of results from...
05 February 2021 9,707 4 View
I am trying to simulate permeation of gases in polymers. For this reson normally i use the clasic models like dual sorption model but newly i foun dthe non equilibrium lattice fluid model. It...
03 February 2021 1,203 3 View
First of all, whether it is possible to identify the presence of water and its amount on the Silicon substrate by using only FT-IR spectroscopy. Can ATR-FTIR spectroscopy find out the wettability...
03 February 2021 9,085 4 View
