COMPLEX FORMATION BETWEEN 2-POLYVINYLPYRIDINE AND IODINE IN SOLUTION AND IN THE SOLID-STATE (PYRIDINE, POLYACRYLONITRILE).
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Title
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COMPLEX FORMATION BETWEEN 2-POLYVINYLPYRIDINE AND IODINE IN SOLUTION AND IN THE SOLID-STATE (PYRIDINE, POLYACRYLONITRILE).
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Identifier
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AAI8601704
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identifier
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8601704
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Creator
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WILENSKY, STUART BRYAN.
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Contributor
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Seymour Aronson
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Date
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1985
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Language
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English
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Publisher
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City University of New York.
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Subject
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Chemistry, Physical
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Abstract
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A study was made on the ionic equilibria of 2-polyvinylpyridine (2-PVPy) and iodine, and pyridine(Py) and iodine in 1,2-dichloroethane. A significant difference was found between freshly prepared and stored solutions. Experimental data for the stored solutions were reproducible and consistent.;EMF measurements on cells of the type Pt(VBAR)I(,2)(C), TEAI (C(,1)), 2-PVPy(C(,2)) in 1,2 DCE(VBAR)(VBAR) I(,2)(C), 2-PVPy(C(,2)) in 1,2-DCE(VBAR)Pt where TEAI is tetraethylammonium iodide, were performed. For the proposed dissociation of the molecular complex, the degree of ionization and the equilibrium constant were calculated. Conductivity and concentration cell measurements yielded additional information. Solutions of Py-I(,2) as well as solutions of 2-PVPy-I(,2) were studied.;Solid-state samples of iodine complexed with 2-PVPy, pyrolized polyacrylonitrile, pyrene, and perylene were examined. EMF data on solid-state cells of the type Pt (VBAR) I(,2)(c) (VBAR) AgI (VBAR) Ag (VBAR) Pt where I(,2)(c) represents pure or complexed iodine, were obtained. The thermodynamic activity of iodine as a function of iodine content was determined. Results indicate that the chemical bonding between iodine and the polymer is relatively weak. Electrical conductivity data show a strong dependence on conductivity on the iodine content of the complex. Electron spin resonance spectra have been collected to further characterize the system.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Chemistry
