I tried to prepare N-LipoylLysine by solid phase as well as solution phase. Biggest challenge is ring opening polymerization. Most of the time I end up with polymer compounds. Please help me to avoid polymerization.
I am trying to prepare ether from 2-Phenylethyl iodide with benzyl alcohol by Williamson Ether Synthesis. I tried NaH method, K2CO3 method for the preparation. But all cases I end up with major...
10 November 2018 8,770 3 View
I measured strain sweep rheology for my gel sample (0.1 to 100% strain). But at higher strain, G values are completely scattered. No linear change. So Please help me to understand this. Thank...
03 April 2018 5,497 2 View
Hi Guys, I need a procedure for using reverse phase semi-preparative RP-HPLC. Generally how much time will it takes to purify 100 mg of small peptides. How much solvent is necessary to prepare the...
08 September 2017 2,337 9 View
Z-matrix
06 July 2013 2,025 2 View
effect of double bond on the flexibility of polymers
07 April 2021 0 0 View
I am writing to request some information for making polymer color flakes. I would appreciate the help.
17 March 2021 0 0 View
I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...
03 March 2021 7,540 4 View
The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...
03 March 2021 4,107 4 View
Anyone can recommend any books on such topics? Thanks in advance.
02 March 2021 8,457 2 View
Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...
02 March 2021 6,186 3 View
I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...
02 March 2021 1,404 6 View
Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...
28 February 2021 7,882 2 View
What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?
28 February 2021 6,516 5 View
Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?
26 February 2021 3,487 3 View