Alireza Ghasemi

4 Questions 7 Answers 0 Followers

Questions related from Alireza Ghasemi

What happens when you are trying to solve a high melting metal in a low melting metal and there are high melting inter metallic compound in between?

For example in the case of Yb and Bi, when you try to synthesize YbBi2 by solving Yb in Bi melt, is there a chance to reach high melting compounds like Yb4Bi3 and Yb5Bi3 in between? How is the...

29 July 2016 5,621 4 View

Can you suggest an NMR solvent that can solve Chitosan,TGA and SPDP?

I have a compound that contains Chitosan, TGA(thioglycolic acid), SPDP (Succinimidyl 3-(2-Pyridyldithio)Propionate) , I am trying to investigate disulfide bond(between TGA and SPDP) with the help...

23 September 2015 8,348 4 View

How can I determine the average size of the Blocks in block copolymer with the help of NMR spectra?

I am working on the PET/PBT blend and I am trying to inverstigate the influence of the Transesterification, I need to have an estimation of Block size, and I heard it is possible with CNMR, anyone...

02 July 2015 7,001 1 View

What solvent can I use for my NMR test that can dissolve my sample which is a PET-PBT blend?

I need a solvent to be able to take NMR test from my samples PET-PBT blend. I will really appreciate if you can help me. I already tried DMSO, Chloroform, Water, and Ethanol.

18 October 2014 9,023 6 View