EFFECTS OF IONIZING RADIATION ON POLYVINYL ALCOHOL. II. CHANGES OF PHYSICAL PROPERTIES OF THE IRRADIATED SPECIMEN CAUSED BY HEAT TREATMENT

Journal Article · Sun Jun 01 04:00:00 EDT 1958 · J. Phys. Soc. Japan

DOI:https://doi.org/10.1143/JPSJ.13.614· OSTI ID:4327236

Danno, A

The physical properties of polyvinyl alcohol irradiated by deuterons or gamma rays were found to change remarkably by heat treatment. Irradiation causes the decrease of the molecular weight and the increase of the carbonyl groups. When these specimens are heated above 120 deg C, however, the solubility diminishes considerably and even gel formation occurs for highly irradiated ones. Infrared absorption spectra revealed that the number of carbonyl groups formed by the irradiation decreased greatly as a result of heat treatment. Some discussion are given on the process of gel formation. (auth)

• Research Organization: Univ. of Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-12-013034
• OSTI ID: 4327236
• Journal Information: J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 13
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ALCOHOLS
ALL PHYSICAL PROPERTIES
CARBONYLS
CHEMICAL REACTIONS
CHEMISTRY
COLLOIDS
DECOMPOSITION
DEUTERON BEAMS
DEUTERONS
GAMMA RADIATION
HEAT TREATMENTS
HEATING
INFRARED RADIATION
IRRADIATION
MOLECULAR WEIGHT
POLYVINYLS
PVA
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
SOLUBILITY
SPECTRA