2-Propenoic acid, 2-methyl-, 1,2-ethanediylbis(oxy-2,1-ethanediyl) ester, polymer with alpha-(12,16-dimethyl-1,10,15-trioxo-11,14-dioxa-2,9-diazaheptadec-16-en-1-yl)-omega-(1-methyl-2-((2-methyl-1-oxo-2-propenyl)oxy)ethoxy)poly(oxy(1-methyl-1,2-ethane