Do degrees of free -NH2 groups have always positive effect on biosensor properties ?

Conducting Polymers like Poly (aniline), Poly (diaminonaphthalene) and many more contain free -NH2 groups which will help to sensing biomolecules.

10 November 2017 3,721 0 View

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

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

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 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

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 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

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

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

No title

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