Water-soluble graft copolymers of starch-acrylamide and uses the

Details Water-soluble graft copolymers of starch-acrylamide and uses the Water-soluble graft copolymers of starch-acrylamide and uses the

1980-09-22

1983-08-23

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carbohydrate or derivative as a reactant

527313, C08F25100, C08L 312

Patent

active

044004966

ABSTRACT:
Graft copolymers having starch as the central chain with grafted side chains of acrylamide or acrylamide-acrylic acid, and a process for preparation of such copolymers in the presence of Ce.sup.+4 or other redox initiators. These copolymers are employed in preparing highly viscous aqueous solutions that are particularly useful in oil recovery from subterranean wells.

REFERENCES:
patent: 3095391 (1963-06-01), Brockway et al.
patent: 3332897 (1967-07-01), Ray-Chaudhuri
Handbook of Water-Soluble Gums and Resins, Davidson, (1980), pp. 22-7 to 22-17.
G. F. Fanta, R. C. Burr, W. M. Doane, and C. R. Russell, J. Appl. Polym. Sci., 15, 2651 (1971).
"Starch, Graft Copolymers", Encyclopedia of Polymer Science and Technology, 1977, vol. 2, pp. 665-699.

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