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|Title:||Supramolecule-regulated photophysics of oligo(p-phenyleneethynylene)-based rod-coil block copolymers: Effect of molecular architecture|
|Citation:||Pu, K.-Y., Qi, X.-Y., Yang, Y.-L., Lu, X.-M., Li, T.-C., Fan, Q.-L., Wang, C., Liu, B., Chan, H.S.O., Huang, W. (2008). Supramolecule-regulated photophysics of oligo(p-phenyleneethynylene)-based rod-coil block copolymers: Effect of molecular architecture. Chemistry - A European Journal 14 (4) : 1205-1215. ScholarBank@NUS Repository. https://doi.org/10.1002/chem.200700305|
|Abstract:||Three new topology-varied rod-coil block copolymers, comprising the same oligo(p-phenyleneethynylene) (OPE) rod components and the same coil components, were synthesized by atom-transfer radical polymerization. Their photophysical properties were systematically studied and compared in consideration of their solid-state structures and self-assembly abilities. These copolymers have similar intrinsic photophysical properties to the OPE rods, as reflected in dilute solution. However, their photophysical properties in the solid state are manipulated to be dissimilar by supramolecular organization. Wide-angle X-ray diffraction (WAXD) and atomic force microscopy (AFM) data demonstrate that these copolymers possess different self-assembly abilities due to the molecular-architecture-dependent π-π interactions of the rods. Hence, the aggregates in the solid state are formed with a different mechanism for these copolymers, bringing about the discrepancy in the solid-state luminescent properties. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.|
|Source Title:||Chemistry - A European Journal|
|Appears in Collections:||Staff Publications|
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