Published August 2002 | Version v1
Journal article Metadata-only

γ irradiation of carboxylated styrene-butadiene rubber latex

Creators

  • 1. Beijing Univ., Beijing (China). College of Chemistry, Inst. of Applied Chemistry
  • 2. SINOPEC Beijing Research Inst. of Chemical Industry, Beijing (China)

Description

The crosslinking behavior of carboxylated styrene-butadiene rubber latex (CSBRL) by using gamma radiation with 2-ethyl hexyl acrylate (2-EHA) as crosslinking sensitizer has been studied in detail. In addition, the variation of the particle size and distribution of latex, chemical structure and thermal property of CSBRL with absorbed dose have been discussed. Also the radiation vulcanization mechanism of CSBRL has been suggested. The experiments showed that, the dose rate has small effect on the cross-link behavior of CSBRL, and the swelling ratio decreased rapidly with the increase of absorbed dose. Increasing the dose, the average molecular weight per crosslinked units (Mc) decreased and crosslinking density increased. When the dose is below 25 kGy, no significant changes in the particle size and distribution of latex were observed. The micro-FTIR analysis and DSC curves confirmed the existence of grafting reaction accompanying the crosslinking reaction during the gamma irradiation with 2-EHA as sensitizer

Additional details

Publishing Information

Journal Title
Journal of Radiation Research and Radiation Processing
Journal Volume
20
Journal Issue
3
Journal Page Range
p. 171-177
ISSN
1000-3436

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
34078691
Subject category
S07: ISOTOPES AND RADIATION SOURCES;
Descriptors DEI
BUTADIENE; CARBONYLATION; COBALT 60; CROSS-LINKING; DOSE-RESPONSE RELATIONSHIPS; GAMMA RADIATION; INFRARED SPECTRA; LATEX; RADIATION CURING; RADIATION DOSES; RUBBERS; STRUCTURAL CHEMICAL ANALYSIS; THERMODYNAMIC PROPERTIES
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; COBALT ISOTOPES; CURING; DIENES; DOSES; ELASTOMERS; ELECTROMAGNETIC RADIATION; HYDROCARBONS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PHYSICAL PROPERTIES; POLYENES; POLYMERIZATION; POLYMERS; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; RUBBERS; SPECTRA; YEARS LIVING RADIOISOTOPES