Phase Behaviors of Multi‐tailed B₂AB₂‐Type Regio‐isomeric Giant Surfactants at the Columnar‐Spherical Boundary^†

Main observation and conclusion We report herein the precision synthesis and phase behaviors of multi‐tailed B 2 AB 2 ‐type regio‐isomeric giant surfactants consisting of a hydrophilic polyhedral oligomeric silsesquioxane (POSS) head tethered with four hydrophobic polystyrene (PS) tails. The synthesis was accomplished through two sequential “click” reactions to give a series of regio‐isomeric giant surfactants S 2 DS 2 (where S is short for PS...