Water soluble co-polyhydroxyaminoether and solution thereof

1. A water-soluble co-polyhydroxyaminoether having side chains of polyalkylene oxides; wherein the water-soluble polymer is represented by the formula:

wherein: R is independently selected from hydrogen and C 1 -C 20 alkyl; R 1 is individually selected from an aromatic moiety and a substituted aromatic moiety; Y is an organic moiety that does not contain an epoxy group; Z is an organic moiety optionally containing an epoxy group; n is 5-400; x is about 0.01 to about 0.99; A is individually selected from an amino group represented by one of the following formulas:

wherein: R 2 is independently selected from hydrocarbyl and substituted hydrocarbyl; R 3 is independently selected from C 2 -C 10 hydrocarbylene or substituted hydrocarbylene; R 4 is independently selected from C 2 -C 20 hydrocarbylene and substituted hydrocarbylene; and the substituent(s) is independently selected from the group consisting of hydroxyl, cyano, halo, aryloxy, alkylamido, arylamido, alkycarbonyl, or arylcarbonyl; and B is represented by the formula:

wherein: R 5 is methyl; R 6 is independently selected from the group consisting of hydrogen and methyl; the molar ratio of propylene oxide to ethylene oxide is approximately 3/19 or approximately 10/32; and q is a number yielding an approximate molecular weight of 1000 or 2000.

2. An aqueous solution comprising water and the water-soluble co-polyhydroxyaminoether according to claim 1 .

3. The aqueous solution according to claim 2 , wherein a viscosity of the solution increases as temperature is increased.

4. The water-soluble co-polyhydroxyaminoether according to claim 1 , wherein: R is hydrogen; R 1 is independently selected from the group consisting of isopropylidenediphenylene, 1,4-phenylene, 1,3-phenylene, methylenediphenylene, thiodiphenylene, and carbonyldiphenylene; R 2 is independently selected from the group consisting of methyl, ethyl, phenyl, benzyl, 2-hydroxyethyl, 3-hydroxypropyl, 2-hydroxypropyl, 2,3-dihydroxypropyl, 2-(acetamido)ethyl; and R 3 and R 4 are independently selected from the group consisting of ethylene, 1,2-propylene, 1,2-butylene.

5. An aqueous solution comprising water and the water-soluble co-polyhydroxyaminoether according to claim 4 .

6. The aqueous solution according to claim 5 , wherein a viscosity of the solution increases as temperature is increased.

7. The water-soluble co-polyhydroxyaminoether according to claim 4 , wherein: R 1 is isopropylidenediphenylene; R 2 is 2-hydroxyethyl; Y is N-(2-hydroxyethyl)piperazinyl or bis(2-hydroxyethyl)amino; Z is N-(2-hydroxyethyl)piperazinyl or bis(2-hydroxyethyl)amino, and n is 10-25.

8. An aqueous solution comprising water and the water-soluble co-polyhydroxyaminoether according to claim 7 .

9. The aqueous solution according to claim 8 , wherein a viscosity of the solution increases as temperature is increased.