How to make a cross-link polymer thin film? Does anyone could provide a protocol?

I prepare to let the triol monomer and diisocyanate react in a mold to make a cross-linked polyurethane thin film. Do you think the concentration of 1mol/L triol and diisocyanate in NMP solvent is...

11 December 2017 9,848 0 View

How to do solvent cast to make polymer film?

I made a polyurethane polymer with MW around 17k. And I dissolved them in 30% methnol/ 70% DCM solution with a concentration of 24mg polymer/ mL solution. And then I added the solution to the area...

10 November 2017 9,062 0 View

Characterization method for generation of CO2 gas real-time?

I would like to know whether there is some method to measure the amount of CO2 generated continuously with some equipment.

06 July 2017 8,792 3 View

What's the good method to rid of the tetrabutylammonium salt?

When I use Ph2SiHCl with InCl3 to selectively reduce the benzylic alcohol to methylene functional group without affecting the primary alcohol functional groups on the susbtrate, finally the...

03 April 2017 6,842 4 View

What's the condensation condition between diisocyanate and diol to make high molecular weigh linear polymer?

What is the appropriate concentration for the diol and isocyanate if want to get hight molecular polymer? And DMF, DMSO, NMP, which one is the good solvent for this polymerization? How long will...

02 March 2017 2,752 5 View

Do you have some method for taking the MALDI for the polyurethane polymer

I made a polyurethane through condensation polymerization and I would like to make sure the repeating unit structure through MALDI. However, when I submitted the sample to the staff in the MS,...

01 January 1970 7,361 6 View

Polymer composites suddenly solidifies?

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

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How to polymerize TEOS?

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

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View