How to determine proton conductivity of a membrane with a thickness 50 micrometers?

How can I distinguish between proton conductivity and ionic conductivity?

03 April 2014 5,592 4 View

Is it possible to determine the orientation in polymer structures of thinner polymer films on Si substrates?

There is a difference on the refractive indexes between thick and thin films of a nafion polymer coated onto Si substrate.

03 April 2014 9,271 7 View

Is it possible to calculate the density of ultrathin films of polymers using ellipsometry (refractive index)?

The refractive index of ultrathin film of polymers is very high > 2.

01 February 2013 2,702 6 View

Is there a correlation between free volume size and cross linked concentration for polymers?

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31 December 2012 1,248 1 View

Why do ultrathin films of polymer have very high refractive indexes when measured by ellipsometry?

In ultrathin film of polymer prepared on substrate

31 December 2012 770 3 View

What is the relationship between refractive index and thickness

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31 December 2012 6,683 4 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

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 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

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

How to improve the adhesion between germanium and silicon monoxide thin film layers using EBEAM evaporation?

I want to deposit multilayer coating of germanium and silicon monoxide on silicon wafer using ebeam evaporation?

21 February 2021 2,141 3 View