Iryna Protsak

4 Questions 11 Answers 0 Followers

Questions related from Iryna Protsak

Does anyone knows if Trispentafluoroborane air sensitive? I mean to what extent it is air sensitive? Very sensitive or mildly sensitive?

Dear All, I know that Trispentafluoroborane is air sensitive but need to know how much it is sensitive. When I run reactions with this catalyst do i need to pay very carefully attention for...

15 March 2019 9,477 5 View

What if polymerization degree of depolymerizied siloxane appeared to be higher then of unreacted siloxane ?

Dear All, I study depolymerization of siloxane polymer by Proton NMR. The manufacture value of degree of polymerization of pure siloxane polymer was reported as ~ 80. I did depolymerization of...

20 January 2019 6,136 5 View

The Raman stretching vibration around 514 and 913 cm-1 corresponding to what?

I did Raman spectrum of dimethyl carbonate ( (H3CO)2C=O ) and got two peaks at 514 and 913 cm-1. The molecule of dimethylcarbonate contains C=O group, CH3 group, OCH3 group and these groups have...

11 December 2017 8,770 3 View

Hi everyone, What kind of chromatography is better to use SEC or HPLC to analyse polymers with molecular weight of about 6000Da?

Chromatography, SEC or HPLC

02 December 2017 3,139 11 View