Photo- and electroluminescent properties of a π-conjugated copolymer containing 2,2′-bipyridyl units

Date

2007-02-01

Author

Deichmann, Vitor Angelo Fonseca
Çırpan, Ali
KARASZ, Frank E.
AKCELRUD, Leni

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

214
views

0
downloads

The synthesis, structural characteristics, and photo- and electroluminescent properties of a soluble light-emitting copolymer built up of regularly alternating segments of 1,4-dihexyloxybenzene and 2,2'-bipyridyl (PBPyDHB) are described and discussed. Optical properties of the polymer were investigated in solution and solid-state conditions, demonstrating that in film form the predominant emission centers are inter-macromolecular aggregates, either in photo- or electroluminescence. Thermogravimetric analysis indicates that PBPyDHB has very high thermal stability, with a maximum decomposition rate around 400 degrees C and onset with 10% mass loss at 342 degrees C. The polymer is a blue emitter, and the good solubility, thermal behavior, and electroluminescence properties make it a promising material for electro-optical applications. (c) 2006 Society of Chemical Industry.

Subject Keywords

Polymers and Plastics

URI

https://hdl.handle.net/11511/37084

Journal

Polymer International

DOI

https://doi.org/10.1002/pi.2148

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Electroactive macromonomers based on pyrrole and thiophene: a versatile route to conducting block and graft polymers Yagci, Y; Toppare, Levent Kamil (Wiley, 2003-10-01) The synthesis of block and graft copolymers containing insulating and conducting polypyrrole or polythiophene segments via a two-step procedure is described. Synthetic pathways to prepare pyrrole and thiophene functional macromonomers involving conventional and controlled/living polymerizations such as anionic and cationic ring opening, atom transfer radical polymerization are discussed. The use of these macromonomers in subsequent electrochemical and chemical polymerizations, leading to the formation of co...
Electrochemical polymerization and characterization of polyether-substituted aniline derivatives Tirkeş, Süha; Oenal, Ahmet M. (Wiley, 2007-08-01) New compounds consisting of aniline units linked by polyether bridges have been synthesized and their electrochemical polymerization was performed via constant potential electrolysis and cyclic voltammetry in an aqueous solution containing 3.0 moI L-1 H2SO4. Chemical polymerization was carried out using (NH4)(2)S2O8 as oxidizing agent. It was found that both methods gave the same polymer product without any cleavage of the polyether bridge between aniline rings. The polymers were characterized using the Fou...
Flame retardancy of polyamide compounds and micro/nano composites Gündüz, Hüseyin Özgür; Kaynak, Cevdet; Department of Polymer Science and Technology (2009) In the first part of this dissertation, glass fiber reinforced/unreinforced polyamide 6 (PA6) and polyamide 66 (PA66) were compounded with three different flame retardants, which were melamine cyanurate, red phosphorus and brominated epoxy with antimony trioxide, by using an industrial scale twin screw extruder. Then, to investigate flame retardancy of these specimens, UL-94, Limiting Oxygen Index (LOI) and Mass Loss Cone Calorimeter (MLC) tests were carried out. In addition to flammability tests, thermogra...
Hydrologel from template polymerization of methacrylic acid and n-vinylpyrollidone and polyethleneoxide Erdem, Yelda; Tinçer, Teoman; Department of Polymer Science and Technology (2005) This theses covers the preparation and the characterization of a rigid hydrogel from N-Vinyl pyrrolidone-methacrylic acid (VP-MAA) monomers and polyethyleneoxide (PEO) polymer. Hydrogels are hydrophillic natured three dimensional networks which can swell in the presence of water. The VP-MAA-PEO hydrogel was obtained by template polymerization which can be defined as a method of polymer synthesis in which specific interactions consists of the preparation of a polymer (daughter polymer) in the presence of a m...
Template-free microsphere and hollow sphere formation of polymethylanilines Icli, Merve; Önal, Ahmet Muhtar; CİHANER, ATİLLA (Wiley, 2009-06-01) BACKGROUND: Microsphere and/or hollow sphere formation of methyl-substituted polyaniline derivatives was investigated via chemical polymerization where different sets of conditions were examined. It was found that a variety of parameters (e.g. types and concentrations of monomer and oxidant, polymerization time, solvent with and without acid) have a crucial influence on the morphology of the resulting polyaniline derivatives.

Citation Formats

V. A. F. Deichmann, A. Çırpan, F. E. KARASZ, and L. AKCELRUD, “Photo- and electroluminescent properties of a π-conjugated copolymer containing 2,2′-bipyridyl units,” Polymer International, pp. 252–257, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37084.