1,2-Benzenedicarboxylic acid, 3,4,5,6-tetrabromo-, polymer with alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)) and alpha,alpha,alpha-phosphinylidynetris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)))
1,2-Benzenedicarboxylic acid, 3,4,5,6-tetrabromo-, polymer with alpha-hydro-omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)) and alpha,alpha,alpha-phosphinylidynetris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)))