Muhammad Abd El-Haleem

10 Questions 10 Answers 0 Followers

Questions related from Muhammad Abd El-Haleem

How to avoid formation of coagulation in core-shell emulsion polymers?

good morning, I'm synthesizing emulsion polymers via core-shell technology, but I face problems during the synthesis as I find large amounts of coagulation in the form of sand-like particles. Why...

21 May 2024 9,724 5 View

How can i calculate the C=C in the oils ?

I'm running Epoxidation of Soybean oil to get EBSO plasticizer, but I don't know how to calculate C=C molar ratio of the oil to further use it calculation of Molar ratios of formic acid to peroxide..

07 October 2023 5,422 0 View

How can i synthesize the following compound POLY(ETHYLENE-CO-GUANIDINE), HYDROCHLORIDE?

this is Water Decoloring Agent has high color removal of dye wastewater.

09 July 2023 8,294 0 View

How to detect the epoxy value of epoxy soybean oil?

I made epoxy Soybean oil but i want to know how to detect the epoxy value of the product.

25 February 2023 4,356 0 View

How to determine the methyl ester content in the biodiesel?

I'm producing biodiesel and I want to Know how to determine the ester content by using titration method not instrumental method because instrumental method is not available.

04 January 2023 1,012 1 View

What is the temprature of the reaction of formation polysodiumacrylate and poly acrylic acid ??

I'm working as R&D chemist while i was synthesizing poly acrylic acid by using free radical polymerization it gives me a brown color at the end of the reaction and low viscosity does this...

03 September 2020 5,041 8 View

What's the reason for uncontrolable temp. increasing in the emulsion polymerization of Styrene and butylacrylate?

I'M working in the filed of production of emulsion polymers, while making polymerization reaction between styrene and butylacrylate monomers the temp. rapidly increased from 80 to 92 C°. and...

01 October 2019 5,217 2 View

What is the reason for the coagulations in polystyrene senthesis using anionic surfactant??

I'm working in the research and development in the field of emulsion polymers production. while we was synthesizing polystyrene emulsion using Rhodafac RS-710 coagulation happened after 1hr...

02 April 2019 5,654 3 View

Which is more favorable to use as initiator for emulsion polymerization (bisulphite - persulphate or hydrogen peroxide- formaldehydesulphoxylate ??

I'm working in the field of production of emulsion polymerization and wanna know which redox system is better to use (bisulphite-persulphate) system or ( formaldehydesulphoxylate - hydrogen...

06 March 2019 7,918 6 View

How to control the butylation reaction in formation of n-butylated ureaformaldehyde resins ??

I'm working in the development of phenolic resins used for mineral wool formations and for foundry and development of surface coatings and painting resins.

11 February 2018 1,828 0 View