Study on radiation-induced polymerization of vinyl monomers adsorbed on inorganic substances. I. Radiation-induced polymerization of styrene adsorbed on several inorganic substances. [Gamma radiation]
The radiation-induced polymerization of styrene adsorbed on silica gel, white carbon, silicic acid anhydride, zeolite, and activated alumina was carried out to elucidate the effect of properties of inorganic substances on the polymerization. The rate of adsorbed state polymerization on these inorganic substances was very fast in comparison with that of bulk-state polymerization. The amount of unextractable polymer depends on the specific surface area and chemical compositions of these inorganic substances. Inorganic substances which contain aluminum as a component element are more likely to be grafted than those which consist of SiO/sub 2/ alone. The molecular weight and molecular weight distribution of unextractable polymer and extractable polymer differ from one another in each inorganic substance. In case of silicic acid anhydride, unextractable polymer has smaller molecular weight than extractable polymer. These results suggest that unextractable polymer cannot be extracted due to chemical bonds with the inorganic surface.
- Research Organization:
- Japan Atomic Energy Research Inst., Takasaki
- OSTI ID:
- 7351157
- Journal Information:
- J. Polym. Sci., Polym. Chem. Ed.; (United States), Vol. 13:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
STYRENE
CHEMICAL RADIATION EFFECTS
ALUMINIUM OXIDES
GAMMA RADIATION
GRAFT POLYMERS
MOLECULAR WEIGHT
POLYMERIZATION
SILICA GEL
SILICON OXIDES
ZEOLITES
ADSORBENTS
ALUMINIUM COMPOUNDS
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
ELECTROMAGNETIC RADIATION
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONIZING RADIATIONS
MINERALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
SILICON COMPOUNDS
400600* - Radiation Chemistry