Radiation grafting of acrylic acid onto fluorine-containing polymers. I. Kinetic study of preirradiation grafting onto poly(tetrafluoroethylene). [Gamma radiation]
Preirradiation grafting of acrylic acid onto poly(tetrafluoroethylene) film was studied. The trapped radicals formed upon irradiation are able to induce graft polymerization under appropriate conditions. The influence of the grafting conditions were analyzed kinetically. The grafting reaction begins close to the film surface and proceeds into the center with progressive monomer diffusion through the grafted layer. The dependences of the grafting rate on preirradiation dose and monomer concentration were found to be 0.2 and 1.1 order, respectively. The overall activation energies for this grafting were calculated to be 15.2 and 4.8 kcal/mol below and above 35/sup 0/C, respectively. The relationship between the grafting rate and film and film thickness gave negative first-order dependence.
- Research Organization:
- Japan Atomic Energy Research Inst., Takasaki Gunma, Japan
- OSTI ID:
- 6231697
- Journal Information:
- J. Appl. Polym. Sci.; (United States), Journal Name: J. Appl. Polym. Sci.; (United States) Vol. 26:9; ISSN JAPNA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Study on radiation grafting of acrylic acid onto fluorine-containing polymers. II. Properties of membrane obtained by preirradiation grafting onto poly(tetrafluoroethylene)
The study on radiation grafting of acrylic acid onto fluorine-containing polymers. IV. Properties of membrane obtained by preirradiation grafting onto poly(tetrafluoroethylene-hexafluoropropylene)
Related Subjects
400600* -- Radiation Chemistry
ACRYLIC ACID
ACTIVATION ENERGY
CARBOXYLIC ACIDS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
ELECTROMAGNETIC RADIATION
ENERGY
FLUORINATED ALIPHATIC HYDROCARBONS
GAMMA RADIATION
GRAFT POLYMERS
HALOGENATED ALIPHATIC HYDROCARBONS
IONIZING RADIATIONS
KINETICS
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENES
POLYMERIZATION
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADICALS
REACTION KINETICS