Radiation-induced copolymerization of methyl trifluoroacrylate with propylene

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

DOI:https://doi.org/10.1002/pol.1979.170170621· OSTI ID:6101620

Matsuda, O; Watanabe, T; Tabata, Y; Machi, S

Copolymerization of methyl trifluoroacrylate (MTFA) with propylene in bulk was induced by ..gamma.. irradiation. A wide range of the initial monomer composition gives an equimolar alternating copolymer. The reactivity ratios of r/sub 1/ (MTFA) and r/sub 2/ (propylene) were determined to be 0.01 and 0.005, respectively. The polymerization rate at an equimolar monomer composition is proportional to the 1.0 power of the dose rate. The dose rate dependency of higher than 0.5 may be ascribed to unimolecular termination due to a degradative chain transfer of propagating radicals to propylene. The G values of the initiating radical formation and the polymerization reaction were calculated to be 1.78 and 1336, respectively. The dependence of the copolymerization rate on the temperature was small, and the activation energy of copolymerization was 1.1 kcal/mole from -6 to 50/sup 0/C. 7 figures.

• Research Organization: Japan Atomic Energy Research Inst., Takasaki, Japan
• OSTI ID: 6101620
• Journal Information: J. Polym. Sci., Polym. Chem. Ed.; (United States), Journal Name: J. Polym. Sci., Polym. Chem. Ed.; (United States) Vol. 17:6; ISSN JPLCA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360406 -- Materials-- Polymers & Plastics-- Radiation Effects-- (-1987)
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACRYLATES
ACTIVATION ENERGY
ALKENES
CARBOXYLIC ACID SALTS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COPOLYMERIZATION
ELECTROMAGNETIC RADIATION
ENERGY
G VALUE
GAMMA RADIATION
HYDROCARBONS
IONIZING RADIATIONS
IRRADIATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
MONOMERS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
POLYMERIZATION
PROPYLENE
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
REACTIVITY