Sodium dicarboxylates (or Bola salts) with methylene spacers 0, 2, 4, 6, 8, and 10 were studied in aqueous solution to investigate their influence on the micellization of cetyltrimethylammonium bromide (CTAB). Since bolas with spacer length≤ 12 are known not to micellize in general, the herein used sodium dicarboxylates were treated as 2: 1 amphiphilic electrolytes which reduced surface tension of water (except sodium oxalate ...