Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/12002
Title: | Tetra-alkoxy substituted PPV derivatives: a new class of highly soluble liquid crystalline conjugated polymers | Authors: | VANDENBERGH, Joke VAN SEVEREN, Ineke LUTSEN, Laurence ADRIAENSENS, Peter Bolink, Henk J. CLEIJ, Thomas VANDERZANDE, Dirk |
Issue Date: | 2011 | Publisher: | ROYAL SOC CHEMISTRY | Source: | POLYMER CHEMISTRY, 2(6). p. 1279-1286 | Abstract: | Two first examples of highly soluble tetra-alkoxy substituted PPV derivatives, poly(2,3,5,6-tetrahexyloxy-1,4-phenylene vinylene) (TH-PPV) and poly[2,3,5,6-tetra(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] TEH-PPV, are presented. Both polymers have been fully characterized and the solubility and UV-Vis absorption characteristics have been studied in various organic solvents. Due to the symmetric nature of the repeating unit, TH-PPV and TEH-PPV have an inherently regioregular nature, which is unusual for PPV-type polymers. Observations from polarized light microscopy and differential scanning calorimetry indicate that TH-PPV exhibits thermally induced order resulting in a liquid crystalline mesophase. In contrast, due to steric hindrance of the branched alkyl side chains, TEH-PPV is rather disordered. As a first demonstration of the charge transporting properties of TH-PPV, a simple solution processed electroluminescent device has been prepared. The electroluminescence spectrum shows a detailed structure similar to that observed from the solid-state photoluminescence spectrum and shows one of the highest energy emissions observed for PPVs. It is speculated that the enhanced order in TH-PPV will benefit the usage of this new class of polymers in optoelectronic applications, in which the improved charge carrier mobility is desirable. | Notes: | [Vandenbergh, Joke; Van Severen, Ineke; Adriaensens, Peter; Cleij, Thomas J.; Vanderzande, Dirk] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Lutsen, Laurence; Vanderzande, Dirk] IMEC, Div IMOMEC, B-3590 Diepenbeek, Belgium. [Bolink, Henk J.] Univ Valencia, Inst Ciencia Mol ICMol, Valencia 46071, Spain. thomas.cleij@uhasselt.be | Document URI: | http://hdl.handle.net/1942/12002 | ISSN: | 1759-9954 | e-ISSN: | 1759-9962 | DOI: | 10.1039/c1py00027f | ISI #: | 000290682200010 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2012 |
Appears in Collections: | Research publications |
Show full item record
SCOPUSTM
Citations
1
checked on Sep 2, 2020
Page view(s)
108
checked on Apr 17, 2023
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.