Published August 2003 | Version v1
Journal article Metadata-only

Radiation induced degradation of sodium alginate

Creators

  • 1. Chinese Academy of Sciences, Shanghai (China). Shanghai Inst. of Nuclear Research, Radiation Application Center

Description

Reaction rate constants of sodium alginate with both sulfate and carbonate anion radicals were determined by laser flash photolysis and pulse radiolysis, respectively. The relationship between molecular weight of the sodium alginate and absorbed dose was discussed. Degradations of the sodium alginate were caused by OH radicals and other oxidative radicals, because the oxidation at the C-4 carbon resulted in the breakage of the glycosidic C1-O-C4 bond in the main chain of sodium alginate

Additional details

Publishing Information

Journal Title
Journal of Radiation Research and Radiation Processing
Journal Volume
21
Journal Issue
3
Journal Page Range
p. 169-173
ISSN
1000-3436

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
35022653
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
ALGINATES; AQUEOUS SOLUTIONS; COBALT 60; CONCENTRATION RATIO; DOSE-RESPONSE RELATIONSHIPS; GAMMA RADIATION; LASER RADIATION; MOLECULAR WEIGHT; PHOTOLYSIS; POLYMERS; POLYSACCHARIDES; PULSED IRRADIATION; RADIATION DOSES; RADIOLYSIS; SODIUM COMPOUNDS; SPECTROPHOTOMETRY; STRAND BREAKS; ULTRAVIOLET SPECTRA
Descriptors DEC
ALKALI METAL COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBOHYDRATES; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; COBALT ISOTOPES; DECOMPOSITION; DISPERSIONS; DNA DAMAGES; DOSES; ELECTROMAGNETIC RADIATION; HOMOGENEOUS MIXTURES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZING RADIATIONS; IRRADIATION; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; MIXTURES; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; PHOTOCHEMICAL REACTIONS; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; SACCHARIDES; SOLUTIONS; SPECTRA; YEARS LIVING RADIOISOTOPES