Process for radiation grafting hydrogels onto organic polymeric

Details Process for radiation grafting hydrogels onto organic polymeric Process for radiation grafting hydrogels onto organic polymeric

1974-04-10

1976-02-17

Tillman, Murray

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415915, 20415917, 260 75T, 260824R, 260859R, 260873, 260881, 260884, 260885, C08F 246, C08L 4304, C08L 8310

Patent

active

039390497

ABSTRACT:
An improved process for radiation grafting of hydrogels onto organic polymeric substrates is provided comprising the steps of incorporating an effective amount of cupric or ferric ions in an aqueous graft solution consisting of N-vinyl-2 - pyrrolidone or mixture of N-vinyl-2 - pyrrolidone and other monomers, e.g., 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate, propylene glycol acrylate, acrylamide, methacrylic acid and methacrylamide, immersing an organic polymeric substrate in the aqueous graft solution and thereafter subjecting the contacted substrate with ionizing radiation.

REFERENCES:
patent: 3008920 (1961-11-01), Urchick
patent: 3639524 (1972-02-01), Seiderman
patent: 3706573 (1972-10-01), Laizier et al.
O'Neill, Thomas Grafting of Acrylic Acid onto Radiation-Peroxidized Polypropylene Film in Presence of Fe.sup.+.sup.+, JDPS PT.A-1, Vol. 10, pp. 569-580 (1972).

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