Melahat Şahin

4 Questions 3 Answers 0 Followers

Questions related from Melahat Şahin

Is GC-MS determination of quinones possible in acidic solutions?

My reaction mixture consists of performic acid, formic acid and a phenolic compound. To make a kinetic reaction I take some samples from rxn mixture and dilute it with Ethanol. I see the catechol...

15 September 2017 5,497 4 View

How can I do a reaction between polyamine and lipoic acid NHS ester in an organic solvent?

I want to do this reaction but as far as learned from literature, NHS ester-amine reaction is done in a phosphate buffer solution between pH 8 to 9. However, lipoic acid modified polymer...

28 June 2015 1,840 3 View

Why is thiolated poly(vinylalcohol) not soluble in water after precipitation from reaction mixture?

I prepared TPVA in water. Reaction is catalyzed by HCl and reaction time is 8 hours at 80 degree under atmospheric conditions. After reaction time, i precipitated it with acetone. Then, the...

27 May 2015 2,506 3 View

Why is my synthesized Thiolated polyvinylalcohol insoluble?

Conditions are 8 hours at 80 degree.Product is insoluble .Literature says it is soluble. Any experience?

26 May 2015 7,962 2 View