Srikanth Vijjamarri

5 Questions 7 Answers 0 Followers

Questions related from Srikanth Vijjamarri

How to prepare sample for DMA analysis, Tg and Modulus (dimensions and method) ?

I have some polyacetal samples which are brittle in nature. I would like to run DMA using Q800 TA instrument. I have never used DMA before. What type of dimensions (L*W*T) are best? and which...

02 February 2020 7,737 2 View

How to calculate Yield of a unknown using internal standard in NMR ?

We are trying to recover the starting monomer from a polymer, trying to calculate the yield of it using internal standard in NMR

06 June 2018 8,618 2 View

How to calculate the TON or TOF (Turn Over Number/Frequency) of a catalyst in a polymerization reaction ?

We are doing polymerization reactions with Salen Mn and Zn diketiminate complexes, working on reaction kinetics.

02 February 2018 4,838 3 View

What solvent/solvent system would be best to synthesize crystals of a salen Mn (N) complex ?

The complex is a green color powder compound. Tried toluene alone, could not get crystals. We have to present X ray crystal data for this complex

10 October 2017 3,950 2 View

Can we get the Tg (glass transition temp) for viscous polymers ? what properties would be better to take for a viscous polymer ?

Is it necessary to be in the solid state to get the Tg for a polymer?

04 April 2016 5,414 9 View