Kuehne, A. J. C. and Mackintosh, A. R. and Pethrick, R. A. (2011) Beta-phase formation in a crosslinkable poly(9,9-dihexylfluorene). Polymer, 52 (24). pp. 5538-5542. ISSN 0032-3861Full text not available in this repository. (Request a copy from the Strathclyde author)
The synthesis of a crosslinkable poly(9,9-dihexylfluorene) derivative is reported. Vinyl ether moieties allow for photolithographic patterning, resulting in an immiscible polyfluorene network, which enables subsequent wet thin-film processing. The metastable β-phase morphology, inherent to most polyfluorene homopolymers, can be induced in this crosslinkable polymer. This is verified by optical spectroscopy, X-ray diffraction and by thermal analysis. The β-phase in polyfluorenes is of interest due to its superior optical and electrical characteristics compared to the amorphous phase. Here, amplified stimulated emission is studied. Surprisingly, the β-phase polymer exhibits higher emission thresholds than the amorphous analogue.
|Keywords:||poly(9,9-dihexylfluorene), amplified spontaneous emission, optical-properties, polyfluorene, morphology, polyfluorene thin-films, conjugated polymer, beta-phase formation, crosslinkable, Chemistry, Organic Chemistry, Polymers and Plastics|
|Subjects:||Science > Chemistry|
|Department:||Faculty of Science > Pure and Applied Chemistry|
|Depositing user:||Pure Administrator|
|Date Deposited:||26 Oct 2012 14:59|
|Last modified:||07 Jan 2017 01:32|