Optical and Acoustic Branches and Frequency Distribution of Polyethylene Glycol Chain
- 1 February 1969
- journal article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 42 (2) , 372-378
- https://doi.org/10.1246/bcsj.42.372
Abstract
Optical and acoustic branches of chain vibrations of polyethylene glycol were treated. The nature of these branches was elucidated on the basis of potential-energy distributions and phase relations. From dispersion curves (frequency versus phase difference), the frequency distribution of chain vibrations was calculated, in order to analyze thermal-neutron scattering spectra. Vibrational assignments of scattering peaks in the region 600–200 cm−1 were made with reference to the frequency distribution peaks and potential-energy distributions calculated for the single chain.This publication has 8 references indexed in Scilit:
- Intrachain Force Field and Normal Vibrations of Polyethylene GlycolBulletin of the Chemical Society of Japan, 1968
- Treatment of the Normal Vibrations of Helical Polymers; Methods for Factoring theBMatrix and for Calculating Atomic DisplacementsThe Journal of Chemical Physics, 1967
- Studies of Low-Frequency Molecular Motions in Polymers by Neutron Inelastic ScatteringJournal of Macromolecular Science: Part A - Chemistry, 1967
- Normal Vibrations of the Polymer Molecules of Helical Conformation. IV. Polyethylene Oxide and Polyethylene-d4 OxideThe Journal of Chemical Physics, 1964
- Molecular Vibrations and Structure of High Polymers. III. Polarized Infrared Spectra, Normal Vibrations, and Helical Conformation of Polyethylene GlycolThe Journal of Chemical Physics, 1962
- Molecular vibrations and structure of high polymers. II. Helical parameters of infinite polymer chains as functions of bond lengths, bond angles, and internal rotation anglesJournal of Polymer Science, 1961
- Molecular Vibrations and Structures of High Polymers. I. General Method of Normal Coordinate Treatment by Internal Coordinates and Infrared Frequencies and Conformations of (—CH2—)n, (—CH2–O—)n, and (—CH2–O–CH2—)nThe Journal of Chemical Physics, 1961
- The vibration spectra of helical molecules: infra-red and Raman selection rules, intensities and approximate frequenciesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1953