. In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step ?

More firyal Mohammed Ali Alsalami's questions See All

How can you prepare the high conduct polymers?

cnduct polymer

04 May 2019 10,167 1 View

How can we use poly urethane with concrete?

31 December 2018 7,350 1 View

Can you dissolve poly phenol formaldehyde by suitable solvents?

dissolve poly phenol formaldehyde

31 December 2018 8,806 1 View

How can we prepare the light weight concrete?

How can we prepare the light weight concrete?ow can we prepare the light weight concrete?

31 December 2018 9,926 1 View

What are the main types of lightweight aggregate concrete according to its application. ?

31 December 2018 2,795 1 View

List the main characteristic of light concrete?

11 December 2018 4,463 1 View

Give some references of emerging Applications of Liquid Crystals Based on Nanotechnology?

Emerging Applications of Liquid Crystals Based on Nanotechnology J

11 December 2018 859 6 View

What is The FOAMCEM light weight cellular concrete ?

The FOAMCEM light weight cellular concrete

11 December 2018 6,913 3 View

- What is meanPolymeric Potassium Sequestrants?

-Polymeric Potassium Sequestrants

10 November 2018 7,393 0 View

Why we coudnt apply more important work papers?

the more applied paper can not used?

10 November 2018 4,386 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

How to increase simulation box size?

We intend to study the interaction between peptides and polymer (like PP, PE and PS) through MD simulations using Martini force fields ( Martini 2 for PP and Martini 3 for PE, PS). We have...

08 August 2024 4,842 0 View

How to heat polymer for about 130° without oil bath ?

is there any other way to heat a polymer evenly other than oil bath if so what are those and how to use it

06 August 2024 947 1 View

Does anyone know where to find polypropylene microspheres or microparticles around 1-5micrometer?

These will be used for the study of microplastics in the lung

29 July 2024 9,609 2 View

How to explain the different interaction between soluble and insoluble polymer in water?

Hello everyone, I am try to understand the differences interaction between insoluble and soluble polymers in water with metal ions and how theit charge density (of metal ions) affect the interaction.

29 July 2024 6,350 3 View

Why is it not common to see similar pairs in polymer sliding pairs?

If the pairs are similar, will it reduce the adhesion due to electric charges?

29 July 2024 3,185 2 View

HAs anyone used TGA to find activation enegy of water evaporation?

I have different polymer solutions and I hypothesize that water molecules are retained based on the water-polymer interactions, so the amount of free water is less to intercat with drug tablet....

28 July 2024 9,545 6 View

Can you recommend provider Intermediate laboratory test for hydrocarbon, polyethylene & polypropylene?

Accredited laboratory of JV "Uz-Kor Gas Chemical" LLC (Uzbekistan) is looking for providers to conduct interlaboratory comparison tests on gas chromatographic analysis of hydrocarbons (component...

25 July 2024 8,108 0 View

Why my gel electrophoresis has smearing?

Greetings. I’m currently running a nested pcr for giardia. My mastermix comprised of 3mM Mgcl2, 5unit of taq polymerase, 0.2uM of forward and reverse primers each respectively and 0.2mM of dNtp...

22 July 2024 9,761 5 View

What are the strategies to Enhance IgG-Producing Plasma Cells in mice for Monoclonal Antibody Development?

I have immunized BalB/C mice with a protein using the intradermal (ID) method with Complete Freund's Adjuvant (CFA) and Incomplete Freund's Adjuvant (IFA), following a 14-day interval and three...

22 July 2024 9,160 2 View

firyal Mohammed Ali Alsalami

[Ans: a) Terylene]

Esmat Jalalvandi

Just consider a diol and diacid to produce Polyester. Water molecules need to be removed through condensation process.

a diol or triol with acid anhydride or di acid anhydride produce Polyester.as nucleaphilic reaction and ring opening poy condensation