| 초록 |
The supramolecular organization of π-conjugated-based rod-coil block copolymer has attracted extensively scientific interest because it opens a new way for tuning both molecular organization and electronic/optoelectronic properties of these materials. In this study, the morphologies and photophysical properties of the following two rod-coil block copolymer systems were explored: (1)polyfluorene(PF)/poly(2-vinylpyridine) (P2VP) block copolymers with the linear rod-coil, coil-rod-coil, and star rod-coil architectures;(2)thermoresponsive rod-coil PF-b-poly(N-isopropylacrylamide) (PNIPAAm) and rod-coil-coil PF-b-PNIPAAm-b-poly(N-hydroxyethylacrylamide)(PF-b-PNIPAAm-b-PHEAA). Micellar structures of spherical, cylindrical, worm-like, and bundles were observed on the polymer solutions through manipulating the molecular architecture, rod/coil ratio, mixed solvent composition, temperature, and pH. In addition, the morphologies of thin films and electrospun fibers were also explored. |
