ESR study of polyisobutylene radicals produced by. gamma. -irradiation at 77 K
Journal Article
·
· J. Polym. Sci., Polym. Phys. Ed.; (United States)
An electron spin resonance (ESR) study has been made of radicals trapped in polyisobutylene irradiated at 77 K. It is concluded that only the -C(Me)/sub 2/-CH- radical remains after heat treatment above 213 K. This radical shows a very sharp doublet ESR spectrum with hyperfine splitting of about 2.2 mT. A broad doublet ESR spectrum observed without warming, which was previously assigned as -C(Me)/sub 2/-CH- is explained as a mixture of a doublet and a triplet.
- Research Organization:
- Nagoya Inst. of Tech., Japan
- OSTI ID:
- 6467038
- Journal Information:
- J. Polym. Sci., Polym. Phys. Ed.; (United States), Journal Name: J. Polym. Sci., Polym. Phys. Ed.; (United States) Vol. 19:7; ISSN JPLPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360406 -- Materials-- Polymers & Plastics-- Radiation Effects-- (-1987)
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKYL RADICALS
ANNEALING
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DECAY
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
GAMMA RADIATION
HEAT TREATMENTS
HYDROCARBONS
HYPERFINE STRUCTURE
IONIZING RADIATIONS
KINETICS
LOW TEMPERATURE
MAGNETIC RESONANCE
ORGANIC COMPOUNDS
POLYENES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
REACTION KINETICS
RESONANCE
TEMPERATURE EFFECTS
360406 -- Materials-- Polymers & Plastics-- Radiation Effects-- (-1987)
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKYL RADICALS
ANNEALING
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DECAY
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
GAMMA RADIATION
HEAT TREATMENTS
HYDROCARBONS
HYPERFINE STRUCTURE
IONIZING RADIATIONS
KINETICS
LOW TEMPERATURE
MAGNETIC RESONANCE
ORGANIC COMPOUNDS
POLYENES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
RADIOLYSIS
REACTION KINETICS
RESONANCE
TEMPERATURE EFFECTS