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Novel Luminescent Electrospun Fibers Prepared From Conjugated Rod–Coil Block Copolymer of Poly[2,7‐(9,9‐dihexylfluorene)]‐ block ‐Poly(methyl methacrylate)
Author(s) -
Kuo ChiChing,
Tung YiChih,
Lin ChiaHung,
Chen WenChang
Publication year - 2008
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200800491
Subject(s) - copolymer , materials science , luminescence , conjugated system , methyl methacrylate , polymer chemistry , electrospinning , solvent , chemical engineering , polymer , composite material , chemistry , optoelectronics , organic chemistry , engineering
Abstract Novel luminescent electrospun (ES) fibers have been successfully prepared from a conjugated rod–coil block copolymer, poly[2,7‐(9,9‐dihexylfluorene)]‐ block ‐poly(methyl methacrylate) (PF‐ b ‐PMMA) using a single‐capillary spinneret. Experiment results indicate that PF‐ b ‐PMMA ES fibers prepared from THF, THF/DMF (50/50), and DMF contain PF block aggregated structures of dot‐like (5–10 nm), line‐like (10–20 nm), and ellipse‐like structure (25–50 nm), respectively. Such variation of aggregation size leads to a red‐shift of the absorption or luminescence spectra. In addition, the fiber diameters decrease upon enhancing the DMF content. The present study demonstrates that blue light‐emitting ES fibers are successfully prepared from conjugated rod–coil diblock copolymers and their aggregate morphology and photophysical properties could be tuned through use of selective solvent.