EVIDENCE FOR AN IONIC MECHANISM IN THE RADIATION-INDUCED POLYMERIZATION OF ISOBUTYL VINYL ETHER
Journal Article
·
· J. Polymer Sci., Pt. B
The rate of polymerization of liquid isobutyl vinyl ether conforms to an Arrhenius temperature dependence with an overall activation energy of 6.6 kcal/ mole between --78 and 90 deg C. Also, it was found that the rate of polymerization at 30 deg C depends on the 0.65-power of the dose rate. Evidence was obtained that such results do not preclude an ionic mechanism. By studying the effect of added ion (proton) scavengers in very low concentration on the rate of polymerization, it was established that ions play the predomr-nant role as chain intermediates. The effectiveness of ammonia as a retarder for the polymerization indicates that the reaction is cationic. (P.C.H.)
- Research Organization:
- Univ. of Tennessee, Knoxville
- NSA Number:
- NSA-18-012207
- OSTI ID:
- 4103859
- Journal Information:
- J. Polymer Sci., Pt. B, Journal Name: J. Polymer Sci., Pt. B Vol. Vol: 2
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
AMMONIA
ARRHENIUS EQUATION
BUTYL RADICALS
CHEMICAL REACTIONS
CHEMISTRY
EFFICIENCY
ENERGY
EQUATIONS
ETHERS
EXCITATION
FREE RADICALS
HIGH TEMPERATURE
IONIZATION
IONS
IRRADIATION
LIQUIDS
LOW TEMPERATURE
MEASURED VALUES
MOLECULES
NUMERICALS
POLYMERIZATION
POLYMERS
PROTONS
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION DOSES
REACTION KINETICS
SELF- DIFFUSION
TEMPERATURE
THERMODYNAMICS
VARIATIONS
VINYL RADICALS
ARRHENIUS EQUATION
BUTYL RADICALS
CHEMICAL REACTIONS
CHEMISTRY
EFFICIENCY
ENERGY
EQUATIONS
ETHERS
EXCITATION
FREE RADICALS
HIGH TEMPERATURE
IONIZATION
IONS
IRRADIATION
LIQUIDS
LOW TEMPERATURE
MEASURED VALUES
MOLECULES
NUMERICALS
POLYMERIZATION
POLYMERS
PROTONS
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION DOSES
REACTION KINETICS
SELF- DIFFUSION
TEMPERATURE
THERMODYNAMICS
VARIATIONS
VINYL RADICALS