Method of plasma initiated polymerization

Details Method of plasma initiated polymerization Method of plasma initiated polymerization

1978-08-18

1980-07-15

Edmundson, F. C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204168, 204169, C08F 252

Patent

active

042127190

ABSTRACT:
An ionized gas plasma is established in an electrical field in contact with a non-vapor volume of monomer (liquid and/or solid). The plasma creates active polymerization sites in the monomer volume to initiate propagation of polymerization therein. After initiation, the partially-polymerized monomer volume is postpolymerized in the absence of the ionized gas plasma to yield a very high molecular weight polymer which may be essentially free of cross-linking in desirable forms including commercial quantities of bulk self-supporting polymer or a coating. Suitable monomers include liquid vinyl monomers (e.g., methyl, methacrylate) and solid crystalline monomers (e.g., 1,3,5-trioxane).

REFERENCES:
patent: 2257177 (1941-09-01), Luster
patent: 2551035 (1951-05-01), Miller
patent: 2632729 (1953-03-01), Woodman
patent: 3287242 (1966-11-01), Tobin et al.
patent: 3475307 (1969-10-01), Knox et al.
patent: 3661735 (1972-05-01), Drelich
patent: 4013532 (1977-03-01), Cormia et al.

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