Hansen Solubility Parameters

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

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 the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

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

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

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 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

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Can polymer concentrations be calculated based on the number average molecular weight?

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

Oleg Novikov

Dear Umeha Gayandi ! Рекомендую https://www.pirika.com/NewHP/Ru1/10ReasonR.html

https://cyberleninka.ru/article/n/primenenie-parametra-rastvorimosti-hansena-dlya-modelirovaniya-sistem-zhidkiy-kristall-rastvoritel/viewer

https://www.academia.edu/36208214/%D0%9F%D0%BE%D0%BB%D1%83%D1%8D%D0%BC%D0%BF%D0%B8%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B9_%D0%BF%D0%BE%D0%B4%D1%85%D0%BE%D0%B4_%D0%BA_%D1%82%D0%B5%D0%BE%D1%80%D0%B8%D0%B8_%D0%A4%D0%BB%D0%BE%D1%80%D0%B8_%D0%A5%D0%B0%D0%B3%D0%B3%D0%B8%D0%BD%D1%81%D0%B0_%D0%B4%D0%BB%D1%8F_%D0%B8%D1%81%D1%81%D0%BB%D0%B5%D0%B4%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F_%D0%BC%D0%BE%D0%BB%D0%B5%D0%BA%D1%83%D0%BB%D1%8F%D1%80%D0%BD%D0%BE%D0%B9_%D1%81%D0%B5%D1%82%D1%87%D0%B0%D1%82%D0%BE%D0%B9_%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%82%D1%83%D1%80%D1%8B_%D1%81%D0%BE%D0%BF%D0%BE%D0%BB%D0%B8%D0%BC%D0%B5%D1%80%D0%BE%D0%B2_%D0%B4%D0%B8%D0%B2%D0%B8%D0%BD%D0%B8%D0%BB%D0%B1%D0%B5%D0%BD%D0%B7%D0%BE%D0%BB%D0%B0

Umeha Gayandi

Oleg Novikov thank you!