Recent results in the radiation synthesis and modification of polymers for special applications
Certain economic considerations relative to production of radicals on a large-industrial scale using different types of radiation indicate that current use of electron accelerators in at least 9 out of 10 radiation-chemical processes reflects use of the most economical method of irradiation. Fluorine-containing monomers and monomer mixtures belong to a class of systems intensively studied for the radiation-initiated synthesis of polymers with good thermal, mechanical, and chemical properties. Results of detailed investigations of the vinylfluoride-vinylidene-fluoride system and subsequent grafting with hydrophylic monomers are presented. Studies of grafting in the system polyethylene-hexafluoroacetone was found to follow a chain mechanism, with the branches consisting of only one monomer unit each. Cationic grafting was observed during irradiation of ..cap alpha..-methylstyrene, vinylbutylether, or isobutene in the presence of polyethylene, polytetrafluoroethylene, or PVC. Grafting of the fiber/monomer systems, cellulose with styrene, vinylfluoride, ethylacrylate or acrylamide; wool with styrene; polypropylene with vinylchloride and vinylidenechloride; poly(ethylene terephthalate) with styrene, acrylic and methacrylic acid, acrylic acid plus acrylonitrile, and N-vinylpyrrolidone have all been investigated recently. Radiation synthesis and modification of membranes and resins and the radiation-grafting of enzymes have also been reported. 75 references. (BLM)
- Research Organization:
- Univ. of Cologne, Federal Republic of Germany
- OSTI ID:
- 6507576
- Journal Information:
- J. Polym. Sci., Part C; (United States), Vol. 67
- Country of Publication:
- United States
- Language:
- English
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Thermal stability of grafted fibers. [Gamma radiation]
A COMPARISON OF RADIATION-INDUCED GRAFT COPOLYMERIZATION UTILIZING ELECTRON ACCELERATORS AND ISOTOPE SOURCES AS RADIATION INITIATORS. Final Report, July 18, 1960-October 17, 1961
Related Subjects
VINYL MONOMERS
CHEMICAL RADIATION EFFECTS
HYDROPHYLIC POLYMERS
ACETONE
POLYETHYLENES
BUTENES
ETHERS
POLYTETRAFLUOROETHYLENE
PVC
STYRENE
ACRYLAMIDE
ACRYLATES
ACRYLIC ACID
ACRYLONITRILE
CELLULOSE
CHLORINATED ALIPHATIC HYDROCARBONS
METHACRYLIC ACID
POLYESTERS
POLYPROPYLENE
PYRROLIDONES
BIBLIOGRAPHIES
ELECTRONS
GRAFT POLYMERS
FLUORINATED ALIPHATIC HYDROCARBONS
ALKENES
AMIDES
AROMATICS
AZOLES
CARBOHYDRATES
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMISTRY
COLLOIDS
DISPERSIONS
DOCUMENT TYPES
ELEMENTARY PARTICLES
ESTERS
FERMIONS
GELS
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
KETONES
LACTAMS
LEPTONS
MONOCARBOXYLIC ACIDS
MONOMERS
NITRILES
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYOLEFINS
POLYSACCHARIDES
POLYVINYLS
PYRROLES
RADIATION CHEMISTRY
RADIATION EFFECTS
SACCHARIDES
400600* - Radiation Chemistry