Mechanism of radiation-induced addition reaction of carbon tetrachloride onto liquid 1,2-polybutadiene accompanied by cyclization

Journal Article · Tue May 01 04:00:00 EDT 1979 · J. Polym. Sci., Polym. Chem. Ed.; (United States)

DOI:https://doi.org/10.1002/pol.1979.170170503· OSTI ID:6227288

Okamoto, H; Adachi, S; Kakada, K; Iwai, T

Effects of irradiation conditions were investgated in the ..gamma..-ray-induced addition reaction of carbon tetrachloride onto liquid 1,2-polybutadiene. The rate of addition reaction was proportional to the dose rate, and its apparent activation energy was 1.4 kcal/mole in the range of ca. 20 to 80/sup 0/C; the G values for the addition of carbon tetrachloride and vinyl consumption were high. The addition reactions of methyl isobutylate, isopropyl amine, and bromotrichloromethane to liquid 1,2-polybutadiene by ..gamma.. rays were studied to compare with carbon tetrachloride. Methyl isobutylate and isopropyl amine were added much more slowly. On the other hand, in bromotrichloromethane the rate of addition reacion was much faster but cyclization was less pronounced than in carbon tetrachloride. On the basis of these results a mechanism of a radical chain reaction which includes the addition of carbon tetrachloride, cyclization, and crosslinking, is proposed. 8 figures.

• Research Organization: Ube Industries, Ltd., Japan
• OSTI ID: 6227288
• Journal Information: J. Polym. Sci., Polym. Chem. Ed.; (United States), Journal Name: J. Polym. Sci., Polym. Chem. Ed.; (United States) Vol. 17:5; ISSN JPLCA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
AMINES
BROMINATED ALIPHATIC HYDROCARBONS
CARBON TETRACHLORIDE
CARBOXYLIC ACID ESTERS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
COMPARATIVE EVALUATIONS
CROSS-LINKING
DATA
DATA FORMS
DOSE RATES
ELECTROMAGNETIC RADIATION
ESTERS
EXPERIMENTAL DATA
GAMMA RADIATION
HALOGENATED ALIPHATIC HYDROCARBONS
INFORMATION
IONIZING RADIATIONS
ISOLATED VALUES
KINETICS
MEDIUM TEMPERATURE
NUMERICAL DATA
ORGANIC BROMINE COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERIZATION
POLYMERS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
REACTION KINETICS
TEMPERATURE DEPENDENCE