4-Oxazolidinepropanoic acid, 2,5-dioxo-, ethyl ester, (S)-, polymer with 1,3-butadiene 78967-00-7 A-B-A Triblock copolymer Ethyl (S)-2,5-dioxo-4-oxazolidinepropanoate polymer with 1,3-butadiene Pelg-PB