68584-06-5 Benzene, diethenyl-, polymer with ethenylbenzene and ethenylethylbenzene, sulfonated, lithium salt Benzene, diethenyl-, polymer with ethenylbenzene and ethenylethylbenzene, sulfonated, lithium salts Ethenylbenzene, ethylethenylbenzene, diethenylbenzene polymer, sulfonated, lithium salt