Optical and Electronic Properties of Fluorene-Based Copolymers and Their Sensory Applications

Download

index.pdf

Date

2013-02-15

Author

Ibrahimova, Vusala
Kocak, Meliha Eda
Önal, Ahmet Muhtar
TUNCEL, DÖNÜŞ

Metadata

Show full item record

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

Item Usage Stats

140
views

0
downloads

A series of novel, fluorene-based conjugated copolymers, poly[(9,9-bis{propenyl}-9H-fluorene)-co-(9,9-dihexyl-9H-fluorene)] (P1), poly[(9,9-bis{carboxymethylsulfonyl-propyl}-fluorenyl-2,7-diyl)-co-(9,9-dihexyl-9H-fluorene)] (P2) and poly[(9,9-dihexylfluorene)-co-alt-(9,9-bis-(6-azidohexyl)fluorene)] (P3), are synthesized by Suzuki coupling reactions and their electrochemical properties, in the form of films, are investigated using cyclic voltammetry. The results reveal that the polymer films exhibit electrochromic properties with a pseudo-reversible redox behavior; transparent in the neutral state and dark violet in the oxidized state. Among the three polymers, P2 possesses the shortest response time and the highest coloration efficiency value. These polymers emit blue light with a band gap value of around 2.9 eV and have high fluorescent quantum yields. Their metal ion sensory abilities are also investigated by titrating them with a number of different transition metal ions; all of these polymers exhibit a higher selectivity toward Fe3+ ions than the other ions tested with Stern-Volmer constants of 4.41 x 10(6) M-1, 3.28 x 10(7) M-1, 1.25 x 10(6) M-1, and 6.56 x 10(6) M-1 for P1, P2, water soluble version of P2 (P2S) and P3, respectively. (C) 2012 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 815-823

Subject Keywords

Fluorene-Based Polymers, Electrochromism, İon Sensing, Fluorescence

URI

https://hdl.handle.net/11511/48624

Journal

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY

DOI

https://doi.org/10.1002/pola.26454

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Impact modified polyamide-organoclay nanocomposites Işık, Işıl; Yılmazer, Ülkü; Department of Chemical Engineering (2007) The effects of melt state compounding and addition order of ethylene-butyl acrylate-maleic anhydride (E-BA-MAH), ethylene-glycidyl methacrylate (E-GMA), ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) terpolymer and/or three types of organoclays (Cloisite® 15A, 25A and 30B) on morphology, thermal, mechanical and dynamic mechanical properties of polyamide-6 are investigated. XRD patterns show that the interlayer spacing for Cloisite® 15A remained unchanged; however it increased for the organoclays ...
Physical properties of Pd, Ni metals and their binary alloys Özdemir Kart, Sevgi; Tomak, Mehmet; Department of Physics (2004) The Sutton Chen and quantum Sutton Chen potentials are used in molecular dynamics simulations to describe the structural, thermodynamical, and transport properties of Pd, Ni and their binary alloys in solid, liquid, and glass phases. Static properties including elastic constants, pair distribution function, static structure factor, and dynamical properties consisting of phonon dispersion relation, diffusion coefficient, and viscosity are computed at various temperatures. The melting temperatures for Pd-Ni s...
Optical fluoride sensing with a bay region functionalized perylenediimide dye Yukruk, Funda (2006-01-01) A perylenedimiide (PDI) derivative functionalized at the perylene core (bay region) to carry phenyl boronic acid groups was shown to interact with fluoride with changes in the emission and absorption spectrum. These changes are most likely due to fluoride-induced aggregation and/or quenching of the perylenediimide dye. The dye is also selective; among halide ions, fluoride anions generate a significant response. Thus, this class of PDI derivatives is likely to be useful in practical fluoride sensing.
Electrochemical synthesis of crowned conducting polymers : nature of radical cations in polymerization and mechanism of conductivity Cihaner, Atilla; Önal, Ahmet Muhtar; Department of Chemistry (2004) Poly(dibenzo-18-crown-6) (Poly(DB18C6)) was synthesized by electrochemical oxidation of dibenzo-18-crown-6 (DB18C6) using a mixture of acetonitrile and dichloromethane as solvent and tetrabutylammonium tetrafluoroborate (TBABF4) or tetrabutylammonium hexafluorophosphate (TBAPF6) as supporting electrolyte. The anodic polymerization of DB18C6 was investigated using in-situ ESR and in-situ UV-VIS spectroscopic techniques. Spectroelectrochemical (SPEL) properties and thermal analysis of the resulting polymers h...
Thermal Rearrangements of 1-Ethynyl-2-methylcyclopropane: A Computational Study Bozkaya, Ugur; Özkan, İlker (2012-03-29) In this research, a comprehensive theoretical investigation of the thermal rearrangements of 1-ethynyl-2-methylcyclopropane is carried out employing density functional theory (DFT), with the B3LYP functional, and high-level ab initio methods, such as the complete active space self-consistent field (CASSCF), multireference second-order Moller-Plesset perturbation theory (MRMP2), and coupled-cluster singles and doubles with perturbative triples [CCSD(T)]. In all computations Pople's polarized triple-zeta spli...

Citation Formats

V. Ibrahimova, M. E. Kocak, A. M. Önal, and D. TUNCEL, “Optical and Electronic Properties of Fluorene-Based Copolymers and Their Sensory Applications,” JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, pp. 815–823, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48624.