Communications Polymersomes K. Dan, S. Ghosh* &&&&—&&&& One-Pot Synthesis of an Acid-Labile Amphiphilic Triblock Copolymer and its pH-Responsive Vesicular Assembly An amphiphilic triblock copolymer seg- mented by an acid-labile b-thiopropionate linker was synthesized from a dithiol, a diacrylate, and an acrylate-terminated hydrophilic polymer in two steps in one pot. It showed spontaneous vesicular assembly, and the stimuli-responsive disassembly at mild acidic pH values resulted in sustained release of nonco- valently encapsulated guest molecules. A ngewandte Chemi e 1 Angew. Chem. Int. Ed. 2013, 52,1–7 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim These are not the final page numbers! Ü Ü