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Analysis of the longitudinal acoustic mode (LAM) of poly(3,3-dipropyl oxetane)

✍ Scribed by J. M. Pastor; P. Saavedra; J. A. Saja

Publisher
Springer
Year
1991
Tongue
English
Weight
222 KB
Volume
27
Category
Article
ISSN
0170-0839

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πŸ“œ SIMILAR VOLUMES

Raman longitudinal acoustic mode (LAM) s
Raman longitudinal acoustic mode (LAM) studies of folded-chain morphology in poly(ethylene oxide) (PEO). I. Normal mode analysis of LAM of a helical-chain oligomer of PEO
✍ Kigook Song; Samuel Krimm πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 859 KB

## Abstract Normal mode analyses were done for the exact structures of model oligomers of PEO to investigate the longitudinal acoustic mode (LAM) in this helical polymer. It quickly became apparent that it is impossible to reproduce observed LAM frequencies without incorporating explicit interchain

Raman longitudinal acoustic mode (LAM) s
Raman longitudinal acoustic mode (LAM) studies of folded-chain morphology in poly(ethylene oxide) (PEO). II. Normal mode analysis of folded-chain structures of PEO
✍ Kigook Song; Samuel Krimm πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 544 KB

## Abstract Normal mode calculations were carried out on model folded‐chain molecules to determine the effect of a fold on the LAM of PEO. The presence of a chain fold results in a decrease in the LAM frequency and intensity, the change in frequency being very much smaller than the change in intens