Far Infrared and Terahertz Spectroscopy of Polymers


Valery A. Ryzhov (Author) – Researcher at the Laboratory of Materials Dynamics of the Physico-Technical Institute, Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia

Series: Polymer Science and Technology
BISAC: SCI078000; SCI097000
DOI: https://doi.org/10.52305/YKKP7083

The presented work summarizes and systematizes an extensive experimental material of the results of studying polymers using spectroscopy in the low-frequency infrared region. Today, spectroscopic studies in the far infrared region are becoming an important tool for characterizing the physical properties of polymers, determined by molecular dynamics and the level of molecular interactions. Low-frequency spectroscopy of intermolecular interactions is the original and most informative source and criterion for establishing the presence of a hydrogen bond in biological substances, multiplets and clusters in ionomers, a criterion for crystallinity, etc.

Far IR spectroscopy has proven to be productive in deciphering the molecular nature of solid-state (δ, β, and γ) relaxation transitions in polymers. This was the result of (1) evaluating the potential barriers and sizes of molecular motion units from the spectra, (2) finding empirical correlations between the spectral parameters and molecular characteristics of polymers, and (3) comparing the results with activation barriers for relaxation transitions.

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Table of Contents


List of Abbreviations

Chapter 1. Introduction

Chapter 2. Features of Infrared Spectra of Polymers

Chapter 3. Skeletal Torsion-Deformation Vibrations in Amorphous Polymers. Theoretical Predictions and Experiment

Chapter 4. Absorption by the Poly Mechanism in Low-Frequency IR Spectra of Polymers

Chapter 5. Low-Frequency IR Spectra and Molecular Interpretation Relaxation Processes in Amorphous Polymers

Chapter 6. Low-Frequency IR Spectra as a Source of Direct Information about Interchain Interactions in Polymers

Chapter 7. Conclusions

Chapter 8. References

Chapter 9. Applications


Author’s ORCID iD

Valery A. Ryzhov0000-0002-9654-5536

Additional information


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