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Suppression of Energy‐Transfer Between Conjugated Polymers in a Ternary Blend Identified Using Scanning Near‐Field Optical Microscopy
Author(s) -
Cadby A.,
Dean R.,
Jones R. A. L.,
Lidzey D. G.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200600114
Subject(s) - materials science , ternary operation , polymer , optical microscope , conjugated system , polymer blend , methyl methacrylate , microscopy , chemical engineering , phase (matter) , energy transfer , polymer chemistry , scanning electron microscope , copolymer , composite material , optics , organic chemistry , chemical physics , chemistry , physics , computer science , programming language , engineering
Scanning near‐field optical microscopy (see figure) has been employed to study energy transfer within a ternary blend of the conjugated polymers poly(9,9‐dioctylfluorene) (F8), poly(9,9‐dioctylfluorene‐ alt ‐benzothiadiazole) (F8BT), and the saturated polymer poly(methyl methacrylate) (PMMA). Although the morphology of such phase‐separated blends resembles that of simple binary systems composed of a saturated and a unsaturated polymer, it was found that energy transfer between F8 and F8BT is significantly hindered by the diluting effect of the PMMA.