Polymerization of 2-methylaniline and 2-methoxyaniline in water/pentane biphasic system
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We report on chemical polymerization of two aniline derivatives — 2-methylaniline and 2-methoxyaniline — in a two-phase water/pentane system. We have found that poly(2-methylaniline) is produced in form of an amorphous material regardless of the fact whether the monomer is initially dissolved in aqueous or organic phase. The behavior of 2-methoxyaniline is significantly different. The oxidation of this monomer generally results in formation of a water soluble oligomer and an insoluble polymeric product. In consequence, depending on the experimental setup, the polymer is prepared in form of a thin film at the organic/aqueous interface or as micrometer-sized spherical particles dispersed in the aqueous phase.
PACS.82.35.Cd Conducting polymers 81.07.-b Nanoscale materials and structures: fabrication and characterization 82.65.+r Surface and interface chemistry; heterogeneous catalysis at surfaces
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The video presents polymerization of 2-methylaniline in a biphasic system. Both the monomer and the oxidant are present in the aqueous phase (HCl solution). This solution is in contact with pentane (upper phase). As it can be seen, the polymer is produced within the entire volume of the aqueous phase. The time scale of the video is accelerated.
The video presents polymerization of 2-methoxyaniline in a biphasic system. Both the monomer and the oxidant are present in the aqueous phase (HCl solution). This solution is in contact with pentane (upper phase). As it can be seen, the polymer is produced at the interface between pentane and aqueous solution. The time scale of the video is accelerated.
- I. Fuijta, M. Ishiguchi, H. Shiota, T. Danjo, K. Kosai, J. Appl. Polym., Sci. 44, 987 (1992) Google Scholar
- M. Mazur, G.J. Blanchard, Langmuir 20, 3471 (2004) Google Scholar
- M. Mazur, A. Michota-Kaminska, J. Bukowska, Electrochim. Acta, doi:10.1016/j.electacta.2006.10.043 Google Scholar
- M. Mazur, A. Frydrychewicz, J. Appl. Polym. Sci. (accepted) Google Scholar
- J. Livage, T. Coradin, C. Roux, J. Phys.: Condens. Matter 13, R673 (2001) Google Scholar
- S. Patil, J.R. Mahajan, M.A. More, P.P. Patil, Mater. Lett. 39, 1999 (298) Google Scholar
- H.-J. Butt, K. Graf, M. Kappl, Physics and Chemistry of Interfaces, (Wiley-VCH Verlag & Co. KGaA, 2003) Google Scholar