RADIATION-INDUCED ADDITION OF ACETALDEHYDE TO ETHYLENE

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Bull. Chem. Soc. Japan

DOI:https://doi.org/10.1246/bcsj.36.115· OSTI ID:4719167

Hirota, K; Iizuka, S; Ochi, H; Hatada, M

It was found that radiation-induced addition of acetaldehyde to ethylene occurs at room temperature with a relatively high G(-C/sub 2/H/sub 4/), e.g., 4000 at the initial pressure of 50 kg/cm/sup 2/ of ethylene, and that the production of 1: 2 telomer is more favorable than that of 1: 1 telomer at higher pressure of ethylene. In order to obtain higher G values of 1: 1 telomer, it is shown to be unnecessary to make the initial pressure of ethylene higher than 10 kg/cm/sup 2/, and also to elevate the irradiation temperature much higher than room temperature. It was confirmed that a major part of the telomerization proceeds by a chain mechanism, which accompanies a chain-transfer process simuitaneously, acetyl radical playing a role of the chain-carrying radical as well as role of initiator. Moreover it is pointed out that the acetyl radical reacts with ethylene more easily than decomposes, though the decomposition is assumed to occur dominantly in the photochemical and thermal decomposition of acetaldehyde alone. (auth)

• Research Organization: Japanese Assn. for Radiation Research on Polymers, Osaka and Osaka Univ.
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-020060
• OSTI ID: 4719167
• Journal Information: Bull. Chem. Soc. Japan, Journal Name: Bull. Chem. Soc. Japan Vol. Vol: 36
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETIC ACID
ALDEHYDES
CHEMISTRY
DECOMPOSITION
ETHYLENE
G-VALUE
HEATING
PHOTOLYSIS
POLYMERIZATION
PRESSURE
RADIATION CHEMISTRY
REACTION KINETICS
TELOMERIZATION
TEMPERATURE