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

Patent ·
OSTI ID:864683
 [1];  [1];  [2]
  1. Gainesville, FL
  2. Dallas, TX
+ Show Author Affiliations
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.
Research Organization:
University of Florida
DOE Contract Number:
AS05-78ER05947
Assignee:
University of Florida (Tallahassee, FL)
Patent Number(s):
US 4400496
Application Number:
06/188,999
OSTI ID:
864683
Country of Publication:
United States
Language:
English

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Related Subjects

/527/
acid
acrylamide
acrylamide-acrylic
acrylic acid
aqueous
aqueous solution
aqueous solutions
central
chain
chains
copolymers
employed
graft
graft copolymers
grafted
highly
highly viscous
initiators
oil
oil recovery
particularly
particularly useful
preparation
preparing
preparing highly
presence
process
recovery
redox
solutions
starch
starch-acrylamide
subterranean
useful
viscous
water-soluble