Effect of high-energy radiation on the rheological characteristics and structure of liquid rubbers
The effect of high-energy radiation (..gamma..-radiation and accelerated electrons) on liquid polybutadiene and polyisoprene rubbers (SKD, SKD-KTR, SKN) and butyl rubber (BR) was studied by IR and EPR spectroscopy, rheoviscosimetry, and chemical analysis. Newtonian flow was conserved in the rubbers under irradiation. The activation energy of viscous flow was unchanged, evidence of an increase in the contour length of the macromolecules without significant branching and cross-linking at the initial stages of the irradiation. A quantitative relationship was established between the rubber's dynamic viscosity and the absorbed dose, and features of the structure-formation mechanism in the liquid rubbers were determined.
- Research Organization:
- Kemerovo State Univ., USSR
- OSTI ID:
- 5847293
- Journal Information:
- High Energy Chem. (Engl. Transl.); (United States), Journal Name: High Energy Chem. (Engl. Transl.); (United States) Vol. 20:5; ISSN HIECA
- Country of Publication:
- United States
- Language:
- English
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38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600 -- Radiation Chemistry
ABSORPTION
ACTIVATION ENERGY
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CROSS-LINKING
ELASTOMERS
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
ENERGY ABSORPTION
FERMIONS
FLUIDS
GAMMA RADIATION
HYDROCARBONS
INFRARED SPECTRA
IONIZING RADIATIONS
LEPTONS
LIQUIDS
MAGNETIC RESONANCE
MOLECULAR STRUCTURE
MOLECULAR WEIGHT
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHYSICAL RADIATION EFFECTS
POLYENES
POLYISOPRENE
POLYMERIZATION
POLYMERS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RESONANCE
RHEOLOGY
RUBBERS
SPECTRA
VISCOSITY