Multiple self-assembled nanostructures from an oligo(p-phenyleneethynylene) containing rod–coil–rod triblock copolymer

Induced by systematic variation of the initial polymer concentration in toluene, various morphologies of aggregates including vesicles, spheres, onion-like structures, and worm-like fibers from a rod–coil–rod triblock copolymer, oligo (p-phenyleneethynylene)–polystyrene–oligo(p-phenyleneethynylene), were observed by transmission electron microscopy.