Radiolysis of a solid-phase mixture of tetrafluoroethylene and hexafluoropropylene

Journal Article · Mon Feb 29 23:00:00 EST 1988 · High Energy Chem. (Engl. Transl.); (United States)

OSTI ID:6364189

Allayarov, S R; Kim, I P; Barkalov, I M

A mixture of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP) containing 10 to 50% TFE forms a homogeneous glassy solution when cooled to 77 K. The radiation-chemical yield of stabilized paramagnetic centers (SPC) is much lower in the glassy solution than it is in the crystalline TFE and HFP monomers. This appears to be related to devitrification of the glassy solution at the low temperatures (approx. =81 K). The buildup of SPC in the TFE-HFP mixture at 77 K during radiolysis depends on the mixture's TFE content and the SPC yield is a minimum when the TFE content is approx.25%. Polymerization occurs when the glassy solutions of TFE in HFP are subjected to radiolysis at 77 K.

• OSTI ID: 6364189
• Journal Information: High Energy Chem. (Engl. Transl.); (United States), Journal Name: High Energy Chem. (Engl. Transl.); (United States) Vol. 21:5; ISSN HIECA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
360605 -- Materials-- Radiation Effects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKENES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BINARY MIXTURES
CALORIMETRY
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COBALT 60
COBALT ISOTOPES
DECOMPOSITION
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ETHYLENE
FLUORINATED ALIPHATIC HYDROCARBONS
GAMMA RADIATION
GLASS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
IRRADIATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LOW TEMPERATURE
MAGNETIC RESONANCE
MAGNETISM
MINUTES LIVING RADIOISOTOPES
MIXTURES
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PARAMAGNETISM
PHASE STUDIES
POLYMERIZATION
PROPYLENE
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADIOISOTOPES
RADIOLYSIS
RESONANCE
SOLIDS
TEMPERATURE DEPENDENCE
YEARS LIVING RADIOISOTOPES