Synthesis and characterization of fluorine-substituted polyanilines

Date

2001-09-01

Author

Cihaner, A
Önal, Ahmet Muhtar

Metadata

Show full item record

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

Item Usage Stats

228
views

0
downloads

Poly(2-fluoroaniline), P2FAN, poly(3-fluoroaniline). P3FAN. and poly(4-fluoroaniline), P4FAN, have been synthesized from fluorine substituted aniline monomers in aqueous acidic medium using potassium dichromate as oxidizing agent. Characterization of polymer products has been carried out using FTIR, and NMR spectroscopic techniques. Thermal analysis of polyfluoroaniline powders was also investigated using differential scanning calorimetry and thermogravimetric analysis. To compare the structural properties of the polymers, polyfluoroanilines were also synthesized using ammonium peroxydisulfate as oxidizing agent. Polyfluoroanilines synthesized by chemical oxidation were doped by using iodine and the change in the paramagnetic behavior was monitored by electron spin resonance spectroscopy.

Subject Keywords

Organic Chemistry, General Physics and Astronomy, Polymers and Plastics

URI

https://hdl.handle.net/11511/46121

Journal

EUROPEAN POLYMER JOURNAL

DOI

https://doi.org/10.1016/s0014-3057(01)00062-3

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Synthesis of new ferrocenyl substituted quinoxaline derivative monomers, their polymerization and electrochemical behaviors Özdemir, Şerife; Doğan, Özdemir; Toppare, Levent Kamil; Department of Chemistry (2010) 5,8-Bis(2,3-dihydrothieno[3,4b][1,4]dioxin-5-yl)-2-(naphthalen-2-yl)-3-ferrocenyl-4a,8a-dihydroquinoxaline (DEFNQ), 5,8-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2-(phenyl)-3 ferrocenylquinoxaline (DEFPQ) and 5,8-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2,3-di(naphthalen-2-yl)quinoxaline (DEDNQ) were synthesized, electrochemically polymerized and electrochromic properties of resultant polymers were investigated. For the characterization of the monomers Nuclear Magnetic Resonance (1H-NMR, 13C-NMR) w...
CONDUCTIVE PROPERTIES OF POLY(4-VINYLPYRIDINE) POLY(DIMETHYLSILOXANE) BLOCK-COPOLYMERS DOPED WITH TETRACYANOQUINODIMETHANE NUGAY, N; KUCUKYAVUZ, Z; KUCUKYAVUZ, S (Elsevier BV, 1993-01-01) Poly(4-vinylpyridine)-poly(dimethylsiloxane) (P4VP-PDMS) block copolymers with various compositions were prepared by anionic polymerization. The 4VP block was quaternized with methyl iodide and reacted with 7,7',8,8'-tetracyanoquinodimethane (TCNQ), which is in both anion radical (TCNQ-.) and neutral form (TCNQ0). The products were then characterized by H-1 nuclear magnetic resonance and Fourier-transform infra-red spectroscopy, scanning electron microscopy and differential scanning calorimetry techniques. ...
Synthesis, characterization, and electrochemistry of tetracarbonyl(6-ferrocenyl-2,2 '-bipyridine)tungsten(0) Edinc, Pelin; Oenal, Ahmet M.; Özkar, Saim (Elsevier BV, 2007-04-15) 6-Ferrocenyl-2,2'-bipyridine (fcbpy) was prepared by the reaction of lithiated ferrocene with bipyridine and employed as a bidentate ligand for the formation of tetracarbonyl(6-ferrocenyl-2,2'-bipyridine)tungsten(0). The labile complex pentacarbonyl[eta(2)-bis(trimethylsilyl)ethyne]tungsten(0) reacts with fcbpy in CH2Cl2 to yield the disubstitution product, W(CO)(4)(fcbpy), which was isolated as analytically pure substance and characterized by elemental analysis, IR, UV-Vis, MS, H-1 and C-13 NMR spectroscop...
Characterization of p-t-butylstyrene-dimethylsiloxane triblock copolymers in solution Küçükyavuz, Savaş; Küçükyavuz, Zühal; Erdoǧan, Günseli (Elsevier BV, 1990-2) Anionically synthesized poly(p-t-butylstyrene)-b-poly(dimethylsiloxane)-b-poly(p-t-butylstyrene) block copolymers containing about 28% by weight p-t-butylstyrene were characterized by using differential refractometry, light scattering and viscosity methods in a good solvent, benzene, and in a selective solvent, methyl ethyl ketone. The unperturbed chain dimensions were estimated. Results were discussed with regard to the conformation of block copolymers in solution.
Rediscovery of Scorzonera amasiana Hausskn. and Bornm. - A threatened endemic species in turkey Karaer, Fergan; Celep, Ferhat (2007-12-01) Scorzonera amasiana Hausskn. and Bornm. was described from type specimens collected by J.F.N. Bornmueller in 1889 but it was not collected again until 1993, when it was found near Amasya, Turkey. Populations of S. amasiana were quite small at that limited locations and were vulnerable to human impacts. Therefore, suitable conservation strategies should be developed immediately in order to protect the species from probable extinction. Here, an additional three small populations are reported. Brief history, m...

Citation Formats

A. Cihaner and A. M. Önal, “Synthesis and characterization of fluorine-substituted polyanilines,” EUROPEAN POLYMER JOURNAL, pp. 1767–1772, 2001, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46121.