What are the optical properties of polyacrylamide (PAM) solution?

The optical properties of polyacrylamide (PAM) solution play an important role in measuring PAM concentration of the solution in the polymer flooding of oilfield based on optical methods.

What are the Raman spectra of acrylamide?

The infrared spectra of acrylamide and deuterated acrylamide have been studied between 4000 and 450 cm −1. The Raman spectra of approximately molar solutions of acrylamide in water and deuterium oxide were obtained from 250 to 3200 cm −1 and from 400 to 3200 cm −1, respectively.

Does FTIR spectroscopy show a strong absorption of polyacrylamide?

Fourier Transform Infrared Spectroscopy (FTIR) of polyacrylamides showed strong absorption at wave number 1655 cm-1 due to the presence of primary amide band. The results also showed that the increase in the intrinsic viscosity and glass transition temperature were proportional to the increase in molecular weight of polyacrylamide.

Which spectra shows a stretching of the C=O group from acrylamide?

At 1653-1654 cm -1 , a stretching of the C=O group from the acrylamide unit appears in Gel (Am) and Gel (50/50) spectra. At this wavenumber there is also the OH angular deformation from water, which explains the existence of this band in the polyacrylate spectrum.

How to synthesis high molecular weight polyacrylamides?

The synthesis of medium, high and very high molecular weight polyacrylamides were achieved by increasing the concentration of acrylamide monomer. Fourier Transform Infrared Spectroscopy (FTIR) of polyacrylamides showed strong absorption at wave number 1655 cm-1 due to the presence of primary amide band.

Is polyacrylamide a water soluble support polymer?

Studies on stable aqueous polyaniline prepared with the use of polyacrylamide as the water soluble support polymer. Euro. Poly. J., 35(5), 803-813.