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Beta-phase formation in a crosslinkable poly(9,9-dihexylfluorene)

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 0032-3861

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Abstract

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.

Item type: Article
ID code: 41772
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
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 26 Oct 2012 15:59
Last modified: 27 Mar 2014 10:36
URI: http://strathprints.strath.ac.uk/id/eprint/41772

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