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  • 1
    Electronic Resource
    Electronic Resource
    Preparation of poly(p-phenylene) via a new precursor route (1993)
    s.l. : American Chemical Society
    Macromolecules 26 (1993), S. 2607-2611 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00062a032
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  • 2
    Electronic Resource
    Electronic Resource
    Carbon film from polyphenylene prepared by electrochemical polymerization (1989)
    Springer
    Journal of materials science 24 (1989), S. 3113-3117 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A carbon film was produced from polyphenylene (PP) film prepared by electrochemical polymerization of benzene to obtain a uniform and thin film. The PP film (∼10μm thick) was transformed into the carbon or graphite film without drastic changes of shape or size. The electrical conductivity of the film was remarkably enhanced by heat-treatment between 600 and 800° C, but further increase in the conductivity was not observed by treating at higher temperatures. This behaviour is considered to correlate with a poor degree of graphitization of the PP film. The carbonization and graphitization mechanisms of the film are discussed in connection with the structure of polyphenylene in the film.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01139028
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  • 3
    Electronic Resource
    Electronic Resource
    Comparative study on poly(3-alkylpyrroles) (1991)
    Springer
    Journal of materials science 26 (1991), S. 5637-5643 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Polypyrrole(PPY), poly(3-methylpyrrole)(PMPY) and poly(3-octylpyrrole) (POCPY) were prepared under the same electrochemical polymerization conditions and their properties were comparatively studied. Electrical conductivity increased in the order POCPY 〈 PMPY 〈 PPY. Absorption spectra measuredin situ showed that while peak energy of the interband transition increased in the order PPY 〈 PMPY 〈 POCPY, the absorption edge of PPY was located at almost equal energy as that of PMPY and POCPY. Stability, indicated by decrease in the ratio of conductivities after storage to the initial conductivity, was primarily dependent on the length of alkyl chains, secondly on dopants and associated with spectral deterioration. While the initial conductivity was strongly dependent on temperature and current density during electrochemical polymerization, the stability was virtually independent of these conditions. The stability increased in the order: POCPY 〈 PMPY 〈 PPY. Spectral change during storage in air was dependent on the chemical structure of polymers but almost independent of dopants. The spectral change indicated PPY to be in nearly initial states after 10 days and POCPY to be in almost completely undoped states after 200 days. In cyclic voltammograms, PPY and POCPY showed one anodic peak and PMPY two anodic peaks. Their peak potentials were associated with conjugation length.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00553669
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  • 4
    Electronic Resource
    Electronic Resource
    Comparative study on poly(3-alkylpyrroles) (1991)
    Springer
    Journal of materials science 26 (1991), S. 5637-5643 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Polypyrrole(PPY), poly(3-methylpyrrole)(PMPY) and poly(3-octylpyrrole) (POCPY) were prepared under the same electrochemical polymerization conditions and their properties were comparatively studied. Electrical conductivity increased in the order POCPY 〈 PMPY 〈 PPY. Absorption spectra measuredin situ showed that while peak energy of the interband transition increased in the order PPY 〈 PMPY 〈 POCPY, the absorption edge of PPY was located at almost equal energy as that of PMPY and POCPY. Stability, indicated by decrease in the ratio of conductivities after storage to the initial conductivity, was primarily dependent on the length of alkyl chains, secondly on dopants and associated with spectral deterioration. While the initial conductivity was strongly dependent on temperature and current density during electrochemical polymerization, the stability was virtually independent of these conditions. The stability increased in the order: POCPY 〈 PMPY 〈 PPY. Spectral change during storage in air was dependent on the chemical structure of polymers but almost independent of dopants. The spectral change indicated PPY to be in nearly initial states after 10 days and POCPY to be in almost completely undoped states after 200 days. In cyclic voltammograms, PPY and POCPY showed one anodic peak and PMPY two anodic peaks. Their peak potentials were associated with conjugation length.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02403968
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  • 5
    Electronic Resource
    Electronic Resource
    Electrochemical polymerization of 3-octylpyrrole (1990)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 28 (1990), S. 1831-1840 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Electrochemical polymerization of 3-octylpyrrole (OCPY) yielded a film on the anode. Its conductivity was 5 S/cm. Infrared spectra of OCPY and poly(3-octylpyrrole) (POCPY) were compared with those of related monomers and polymers, and as a result, the pyrrole rings appeared quite likely linked at 2- and 5-positions. Cyclic voltammograms of a PF-6-doped POCPY film had an anodic peak at 0.16 V vs. Ag and a cathodic peak at 0.12 V. Doped POCPY was stable and soluble in such polar solvents as tetrahydrofuran, N-methylpyrrolidinone and pyridine. Although the absorption spectrum of the film had three peaks at 1.0, 2.5 and 3.6 eV, as also in the case of poly(3-methylpyrrole), the spectra in pyridine and THF solutions indicated two peaks at 1.9 and 3.2 eV. Scanning electron microscopy (SEM) showed the POCPY films to have a unique morphology, depending on the electrolytes used for electrochemical polymerization. The introduction of an octyl group made polypyrrole soluble in organic solvents, but effective conjugation length became shorter and the texture of films rougher.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1990.080280715
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  • 6
    Electronic Resource
    Electronic Resource
    Electrochemical preparation of polythiophene via 2,5-bis(trimethylsilyl)thiophene (1992)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 30 (1992), S. 1667-1673 
    Details
    ISSN: 0887-624X
    Keywords: electrochemical polymerization ; polythiophene ; 2,5-bis(trimethylsilyl)thiophene ; bis(2-thienyl)silanes ; oxidative elimination ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Electrochemical polymerization of 2,5-bis(trimethylsilyl) thiophene produced highly conducting films which showed infrared spectra, visible-near infrared absorption spectra, and cyclic voltammograms identical to films prepared from thiophene. Elemental analysis indicated that almost all silicon atoms were eliminated during the electrochemical polymerization. However, scanning electron microscopy showed a morphological difference between the films from 2,5-bis(trimethylsilyl)thiophene and from thiophene. The electrochemical polymerization of bis(2-thienyl)dimethylsilane, 1,2-bis(2-thienyl)tetramethyldisilane, and bis(2-thienyl)diphenylsilane also produced polythiophene films having unique morphologies quite different from the conventional ones. These findings indicate that these electrochemical procedures must be useful for preparation of new conjugated polymers. © 1992 John Wiley & Sons, Inc.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1992.080300819
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  • 7
    Electronic Resource
    Electronic Resource
    Layer-selective metallizing of paper by electroless plating using surfactant-stabilized palladium sols (1987)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 25 (1987), S. 293-295 
    Details
    ISSN: 0887-6258
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1987.140250704
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  • 8
    Electronic Resource
    Electronic Resource
    Electrochemical polymerization of 3-alkyl-2,2′-bithiophene (1992)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 30 (1992), S. 945-949 
    Details
    ISSN: 0887-624X
    Keywords: poly(3-dodecyl-2,2′-bithiophene) ; electrochemical polymerization ; absorption spectra ; stability ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1992.080300528
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  • 9
    Electronic Resource
    Electronic Resource
    Heavy metal ion adsorbents having thioamide groups (1979)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 24 (1979), S. 1205-1213 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Polyhydrazides are prepared by condensation of cyanuric chloride with dihydrazides of dibasic carboxylic acids and are sulfurized with phosphorus pentasulfide. Copolymers of acrylamide and dimethylacrylamide with divinylbenzene are also sulfurized with phosphorus pentasulfide. The sulfurized polymers adsorb mercuric ion. In order to incorporate thiocarbamide groups into a polymer matrix, methylolthioureas are condensed with polyethylenimine. The reactions are carried out in the solid state or in aqueous solution. In the former, water is distilled off from the solidified mixture of the reactants; in the latter, methylothiourea and polyethylenimine are allowed to react in the presence of sulfuric acid. The products are good mercuric ion adsorbents.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1979.070240506
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis and antibacterial activity of copolymers having a quaternary ammonium salt side group (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 37 (1989), S. 2837-2843 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Copolymers with a quaternary ammonium salt side group have been prepared from vinylbenzyl-cetyldimethylammonium chloride and acrylonitrile and their antibacterial activity has been examined with Bacillus subtilis, Staphylococcus aureus, and Escherichia coli. Growth inhibitory effect has been found to increase with the increase in the quaternary ammonium salt concentration in the copolymer. The effect is small on gram-negative bacteria and large on gram-positive bacteria.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1989.070371005
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