| abstract |
Copolymers having the general formula (I) Wherein R 1 , R 2 , and R 3 are selected from C 1 to C 30 aliphatic groups; R 4 is a divalent C 4 to C 7 linear aliphatic group optionally substituted with one or more C 1 -C 6 linear aliphatic groups, C 1 -C 6 branched aliphatic groups, or combinations thereof, and divalent C 4 to C 7 linear hydrocarbyl, and R 5 , R 6 , and R 7 are each independently selected from methyl or hydrogen, x is selected from 0 to 0.8, y is selected from 0 to 0.8, y is selected from 0 And x is greater than 0, and when x is 0, y is greater than 0 and z is selected from 0.1 to 0.9. The sum of x, y, and z is one. A method of inhibiting the formation of a foamed hydrate in a fluid capable of forming a foamed hydrate, comprising contacting the fluid with at least one copolymer of formula (I). |