Method for preparing a polymer having ester functionality and said polymer prepared therefrom

A polymer having ester functionality in the backbone of the polymer, the polymer comprising one or more repeating/structural units represented general formula (4), one or more repeating/structural units represented by general formula (5) and one or more repeating/structural units represented by general formula (6) and/or general formula (8):

• wherein
• R1 and R10 are each independently selected from H or CH3;
• R2 and R11 are each independently selected from optionally substituted linear or branched C1-C20 alkyl, optionally substituted linear or branched C1-C20 alkoxy, optionally substituted linear or branched C2-C20 alkenyl, optionally substituted linear or branched C2-C20 alkynyl, optionally substituted C3-C20 cycloalkyl, optionally substituted C3-C20 cycloalkenyl, optionally substituted C6-C20 aryl, optionally substituted C3-C20 heterocycloalkyl, optionally substituted C3-C20 heterocycloalkenyl, optionally substituted C6-C20 heteroaryl or combinations thereof,
• n is 0, 1, 2 or 3;
• R3 is selected from H or optionally substituted linear or branched C1-C20 alkyl;
• R4 to R9 and R12 are each independently selected from H, optionally substituted linear or branched C1-C20 alkyl, optionally substituted linear or branched C1-C20 alkoxy, optionally substituted linear or branched C2-C20 alkenyl, optionally substituted linear or branched C2-C20 alkynyl, optionally substituted C3-C20 cycloalkyl, optionally substituted C3-C20 cycloalkenyl, optionally substituted C6-C20 aryl, optionally substituted C3-C20 heterocycloalkyl, optionally substituted C3-C20 heterocycloalkenyl, optionally substituted C6-C20 heteroaryl or combinations thereof;
• and
• X and Y each comprises a hydrophilic moiety selected from hydroxy, carbonyl, carboxyl, carboxylate, amino, amine, amide, cyclic amide, sulfhydryl, sulfate, sulfonate, phosphate, carbonate, thiocarbonyl, thiocarboxyl, sulfinic, hydrazine, hydroxylamine or combinations thereof.