Dale Snitterman

4 Questions 6 Answers 0 Followers

Questions related from Dale Snitterman

What vacuum level is required for thermal annealing of block copolymers?

I see thermal annealing of block copolymers done under various levels of vaccum (from ~10 torr to 10^-8 torr). Does the vacuum level matter?

04 April 2017 7,081 1 View

Does anyone have experience with Biotage Isolera sample loading?

I am getting unusual elution profiles. I have been using the feature to create a gradient from TLC and have been loading the sample in the developing solution for TLC. This is always a more polar...

04 April 2014 3,303 2 View

Predict/calculate partition coefficient of functionalized PEG

How can I predict the partition coefficient of end-functionalized poly(ethylene glycol) (Mw=5000) between water and dichloromethane?

07 July 2012 7,148 3 View

Exchanging hydroxyl for a sulfhydryl (thiol)

How can I exchange a hydroxyl for a sulfhydryl (thiol)? It can't be reactive to azides. I'm currently trying Newman-Kwart Rearrangement, so other methods would be good.

03 March 2012 449 3 View