11129-90-1 135143-93-0 61374-03-6 9043-77-0 Benzene, diethenyl-, polymer with ethenylethylbenzene Divinylbenzene, ethylvinylbenzene copolymer Divinylbenzene-ethylvinylbenzene copolymer Poly(divinylbenzene-co-ethylstyrene)