RADIATION INDUCED POLYMERIZATION OF VINYL CHLORIDE IN A SOLUTION AT LOW TEMPERATURES
The effect of a solvent on radiation-induced polymerization of vinyl chloride at --78 deg C was examined in methanol, carbon tetrachloride, chloroform, methylene chloride, trichlorethylene, acetone, and tetrahydrofuran. The over all activation energy for the polymerization of vinyl chloride was about 4.7 kcal/mole at 4.6 x 10/sup 4/ r/hr. The rates for the polymerization of monomeric vinyl chloride depended greatly on the mole fraction of the vinyl chloride in the solvent. At -78 deg C, the degree of polymerization of the product was almost constant except ior polymerizatson in a highly diluted methanol solution. The degree of polymerization of the products decreased with an increase in the mole fraction of vinyl chloride in a methanol solution. rests made on the polymerization of vinyl chloride in methanol in the presence of about 1% of inorganic salts, organic peroxides, and mercaptans did not reveal a strik- ing accelerating effect. (OID)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-022181
- OSTI ID:
- 4837878
- Journal Information:
- Doitai To Hoshasen (Japan) Discontinuedt) (Romania), Journal Name: Doitai To Hoshasen (Japan) Discontinuedt) (Romania) Vol. Vol: 3; ISSN DOHOA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ALKENES
CARBON TETRACHLORIDE
CHEMISTRY
CHLORIDES
CHLOROFORM
ETHYLENE
FURANS
HETEROCYCLICS
MERCAPTAN
METHANE
METHANOL
METHYLENE RADICALS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PEROXIDES
POLYMERIZATION
POLYVINYLS
PVC
RADIATION CHEMISTRY
REACTION KINETICS
SALTS
SOLUTIONS
SOLVENTS
THERMODYNAMICS
VINYL RADICALS