Motional effects in poly(vinyl alcohol) chains by analysis of temperature-dependent alkyl radical electron spin resonance spectra. [Gamma radiation]

Journal Article · Thu Sep 16 04:00:00 EDT 1982 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100216a025· OSTI ID:6446837

Suryanarayana, D; Kevan, L

Temperature-dependent electron spin resonance (ESR) spectra of the -CH/sub 2/-C(OH)-CH/sub 2/- radical in ..gamma..-irradiated poly(vinyl alcohol) (PVA) powder at 9.2 GHz have been measured between 298 and 385 K. The spectral changes have been successfully simulated by the modified Bloch equations using a two-jump model with interconversion between two ..beta.. hyperfine splittings, presumably associated with a torsional motion of chain segments. 2 figures.

• Research Organization: Univ. of Houston, TX
• OSTI ID: 6446837
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 86:19; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACTIVATION ENERGY
ALCOHOLS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ENERGY
EXPERIMENTAL DATA
GAMMA RADIATION
HYDROXY COMPOUNDS
INFORMATION
IONIZING RADIATIONS
MAGNETIC RESONANCE
MEDIUM TEMPERATURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYVINYLS
POWDERS
PVA
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
RESONANCE
TEMPERATURE DEPENDENCE