Meaning of amorphous halo in the XRD patterns for a cryogel based on 2-hydroxyethyl methacrylate and acrylonitrile ?

02 March 2017 3,918 0 View

Will Indian earthen clay pot (matka) violated Second low of thermodynamics?

Dear/ Respected all, Indian earthen clay pot (matka) cool the water (without external agency) as compare to higher atmospheric temperature i.e. it work as refrigerator without using external...

03 April 2016 690 2 View

Will Quasi-one-dimensional model explain the conductivity mechanism of conducting polymers in low temperature range?

Conducting polymers are chain like aromatic/aliphatic in nature and hopping mechanism applied on it.

02 March 2016 543 5 View

How does Reverse Indentation Size Effect affect the mechanical properties of polymer-polymer blend?

09 October 2015 3,306 1 View

Whether solvents did chemical or physical reaction with solute (monomer) during chemical oxidation polymerization?

Respected all, Different structural changes obtain with the treatment of different solvents. During the two step process, different solvents evaporate and the rate of evaporation was also different.

07 August 2015 4,912 0 View

I am searching for the Post-doc from recognized institution at India or abroad. Will you help me for the same?

I did my research work in conducting polymer (synthesis, characterization and its application). I attached the application related to above mention post. Thank you for your kind persuasion.

06 July 2015 7,023 2 View

What is the meaning of negative coefficient of kurtosis obtained in my specific AFM sample?

Kurtosis moment is the fourth moment of profile amplitude probability function and corresponds to a measure of surface sharpness. Even than negative value ? Table is attached with this question.

04 May 2015 10,027 7 View

Why do I get a negative slope in the Williamson-Hall plot for my sample?

My sample was ZnO doped PVA film. There is negative slope obtained from plotting the graph to find micro-strain. Could you explain the results so obtained ?

04 May 2015 3,627 7 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

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

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I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

Onset of Photo Oxidation in Polymers?

Hi! I am looking for some specific information in regards to the minimum amount of UV intensity required to begin the photo degradation process in polymers. I understand each polymer is...

15 February 2021 7,703 4 View

How can I calculate teh crystallinity degree of graphene oxide?

I had treat my XRD diffraction pattern by Highscore to calculate the crystallinity degree Xc and I have the formula but I dont no the 2Theta of Ac and Aa to calculate Xc. Is it like polymers...

10 February 2021 6,305 5 View

Could any one help me with mechanical properties of CFRP(carbon fiber reinforced polymers)?

I am modeling CFRP laminated a concrete column in Abaqus And I need Elastic and plastic properties of CFRP

09 February 2021 4,930 5 View

Dear colleagues. How can we implement the kinetics of the polymerization of aromatic amines in easier and simpler ways?

Dear colleagues. How can we implement the kinetics of the polymerization of aromatic amines in easier and simpler ways? Are there simpler methods for Nano polymers (other than those obtained with...

09 February 2021 5,783 3 View

How to calculate enthalpy of formation of Polymers taking into account the terminal end groups?

I am trying to find methods for theoretical calculation of enthalpy of formation of Polymers. till now I have found the oligomeric method (Gaussian) which uses the extrapolation of results from...

05 February 2021 9,707 4 View

What are advantages of NELF model?

I am trying to simulate permeation of gases in polymers. For this reson normally i use the clasic models like dual sorption model but newly i foun dthe non equilibrium lattice fluid model. It...

03 February 2021 1,203 3 View

Is it possible to find out the wettability and contact angle of water on the rough or corrugated substrate?

First of all, whether it is possible to identify the presence of water and its amount on the Silicon substrate by using only FT-IR spectroscopy. Can ATR-FTIR spectroscopy find out the wettability...

03 February 2021 9,085 4 View