Radiation-Induced Graft-Polymerization on Flaky Glass Surface

SynopsisPolymer encapsulation of silica gel particles (SiO,) by aqueous, radical polymerization of a cationic, surface-active monomer, quaternary salt of dimethylaminoethyl methacrylate with lauryl bromide, in the presence of the solid was investigated. The polymerization gave the polymer encapsulating the solid particles ("C-polymer"), though accompanied by the formation of that suspended in form of latex ("L-polymer"). The proportion of C-polymer in the products increased with increasing the amount of SiO, at a constant monomer concentration and only C-polymer was formed under the conditions where the feed ratio of monomer to SiO, is about 0.13 or lower by weight. Increasing the monomer concentration in feed increased slightly the ratio of C-polymer to SO,. The results obtained here suggest that C-polymer is mainly formed through the polymerization of monomer adsorbed on the solid surface. An electron micrograph of the polymer-encapsulated SiO, revealed that the solid particles are uniformly encapsulated with the resulting polymer.

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Polymerization of surface‐active monomers. III. Polymer encapsulation of silica gel particles by aqueous polymerization of quaternary salt of dimethylaminoethyl methacrylate with lauryl bromide

Nagai

Ohishi

Ishiyama

et al. 1989

J of Applied Polymer Sci

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Study on radiation‐induced polymerization of vinyl monomers adsorbed on inorganic substances. I. Radiation‐induced polymerization of styrene adsorbed on several inorganic substances

Fukano¹,

Kageyama²

1975

J. Polym. Sci. Polym. Chem. Ed.

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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 SiO2 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.

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Triethoxysilane-substituted acrylate copolymers as reagents for the derivatization of porous silica beads

Epton¹,

Marr²,

Ridley³

1979

Polymer

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Radiation-Induced Graft-Polymerization on Flaky Glass Surface

Cited by 4 publications

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Polymerization of surface‐active monomers. III. Polymer encapsulation of silica gel particles by aqueous polymerization of quaternary salt of dimethylaminoethyl methacrylate with lauryl bromide

Polymerization of surface‐active monomers. III. Polymer encapsulation of silica gel particles by aqueous polymerization of quaternary salt of dimethylaminoethyl methacrylate with lauryl bromide

Study on radiation‐induced polymerization of vinyl monomers adsorbed on inorganic substances. I. Radiation‐induced polymerization of styrene adsorbed on several inorganic substances

Triethoxysilane-substituted acrylate copolymers as reagents for the derivatization of porous silica beads

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