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Abstract:

The copolymerization of aniline (Ani) and m-chloroaniline (mClA) in variable ratios was performed by chemical oxidation in HCl medium. The resulting copolymer composition was determined by elemental analysis and XPS. The results show the incorporation of additional Cl substituents in the polymer backbone when m-chloroaniline is present in the polymerization medium with a high mClA:Ani ratio. IR and NMR characterization confirms that finding. Conductivity measurements of the copolymers in salt form were also performed. UV-vis spectra for high mClA:Ani ratios show a main band centred ca. 380 nm. PM3-ZINDO/S spectra calculations suggest that the Cl substituents stabilize spinless semiquinone structures in the polymer chain which are responsible for the 380 nm band. Photoluminescence spectra are recorded and analyzed. The addition of chlorine is attributed to the lower reaction rate in high mClA:Ani ratio. Copolymers with high mClA:Ani ratio appear as materials very different from polyaniline, thus these differences should be considered regarding possible applications. © 2008 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Copolymerization of aniline and m-chloroaniline. Chlorine addition and structure of the resulting material
Autor:Antonel, P.S.; Andrade, E.M.; Molina, F.V.
Filiación:INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon II, Buenos Aires C1428EHA, Argentina
Palabras clave:Conducting polymer; Copolymerization; Photoluminescence; UV-vis spectra; Aniline; Chemical analysis; Chlorine; Conductive plastics; Copolymerization; Copolymers; Isomers; Light emission; Luminescence; Negative ions; Organic conductors; Photoluminescence; Polyaniline; Polymers; Polymethyl methacrylates; Reaction rates; Chemical oxidations; Chloroaniline; Conducting polymer; Conductivity measurements; Copolymer compositions; Elemental analysis; Photoluminescence spectrum; Polymer backbones; Polymer chains; Polymerization mediums; Resulting materials; Semiquinone; UV-vis spectra; Variable ratios; Xps; ZINDO/S; Conducting polymers
Año:2009
Volumen:69
Número:3
Página de inicio:197
Página de fin:205
DOI: http://dx.doi.org/10.1016/j.reactfunctpolym.2008.12.018
Título revista:Reactive and Functional Polymers
Título revista abreviado:React Funct Polym
ISSN:13815148
CODEN:RFPOF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13815148_v69_n3_p197_Antonel

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Citas:

---------- APA ----------
Antonel, P.S., Andrade, E.M. & Molina, F.V. (2009) . Copolymerization of aniline and m-chloroaniline. Chlorine addition and structure of the resulting material. Reactive and Functional Polymers, 69(3), 197-205.
http://dx.doi.org/10.1016/j.reactfunctpolym.2008.12.018
---------- CHICAGO ----------
Antonel, P.S., Andrade, E.M., Molina, F.V. "Copolymerization of aniline and m-chloroaniline. Chlorine addition and structure of the resulting material" . Reactive and Functional Polymers 69, no. 3 (2009) : 197-205.
http://dx.doi.org/10.1016/j.reactfunctpolym.2008.12.018
---------- MLA ----------
Antonel, P.S., Andrade, E.M., Molina, F.V. "Copolymerization of aniline and m-chloroaniline. Chlorine addition and structure of the resulting material" . Reactive and Functional Polymers, vol. 69, no. 3, 2009, pp. 197-205.
http://dx.doi.org/10.1016/j.reactfunctpolym.2008.12.018
---------- VANCOUVER ----------
Antonel, P.S., Andrade, E.M., Molina, F.V. Copolymerization of aniline and m-chloroaniline. Chlorine addition and structure of the resulting material. React Funct Polym. 2009;69(3):197-205.
http://dx.doi.org/10.1016/j.reactfunctpolym.2008.12.018