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  • 1
    Electronic Resource
    Electronic Resource
    Synthesis of nucleic acid base substituted poly-L-lysine (1978)
    Springer
    Polymer bulletin 1 (1978), S. 85-89 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary As a new type of the nucleic acid analogs, poly-L-lysine derivatives containing adenine, thymine and uracil were prepared. By using the activated ester method, carboxyethyl derivatives of the nucleic acid bases were grafted onto poly-L-lysine. The thymine and uracil derivatives were completely substituted to poly-L-lysine. The content of adenine unit in the polymer, however, was less than that of the thymine analog.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00255719
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  • 2
    Electronic Resource
    Electronic Resource
    Synthesis of polyacrylic and polymethacrylic derivatives having pendant uracil and thymine moieties (1980)
    Springer
    Polymer bulletin 2 (1980), S. 195-199 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Polyacrylic and polymethacrylic derivatives containing different contents of pendant uracil and thymine units were prepared by the polymeranalogous reaction using cyclic derivatives of uracil and thymine. The ability of the interaction between thymine bases in the copolymer chain was found to be parallel to the thymine content.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00254584
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis and polymerization of nucleic acid base substituted L-lysine (1978)
    Springer
    Polymer bulletin 1 (1978), S. 215-220 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Poly-l-lysines containing nucleic acid bases, that is, adenine, thymine, uracil and theophylline were synthesized. The nucleic acid base substituted l-lysine derivatives were prepared from α,N-Cbz-l-lysine and the p-nitrophenyl esters of the carboxyethyl derivatives of the nucleic acid bases. The polymers were obtained from these l-lysine derivatives by the NCA method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00283073
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  • 4
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes. XVI. Photopolymerization of vinyl monomers by metal-amine systems (1974)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 38 (1974), S. 81-90 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Photopolymerisation von Vinylmonomeren durch das Initiatorsystem Metall Amin-Komplex/Tetrachlorkohlenstoff wurde untersucht. Die Polymerisation wurde durch Zugabe von Aminen zum Reaktionssystem beschleunigt. Die von verschiedenen Aminen verursachte Beschleunigung wurde in einigen Lösungsmitteln untersucht. Es ergab sich, daß die in Frage kommende Photopolymerisation rein radikalisch verläft. Der Mechanismus der Polymerisation wurde diskutiert.
    Notes: The photopolymerization of vinyl monomers was studied by the system of metal-amine complex and carbon tetrachloride. Addition of amines to the initiating system generally accelerates the polymerization. The acceleration by various sorts of amines in different solvents was examined. It was confirmed that the photopolymerization in question is of free radical character. The polymerization mechanism was discussed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1974.050380108
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  • 5
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes, 26Part 25 of the series: Y. Inaki, M. Takahashi, Y. Kameo, K. Takemoto, J. Polym. Sci., Polym. Chem. Ed. in press. Vinyl polymerization initiated by polyvinylamine-copper(II) chelate in dimethylsulfoxide solution (1976)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 49 (1976), S. 103-114 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die durch Polyvinylamin-Kupfer(II)chelat initiierte Polymerisation von Acrylnitril und Methylmethacrylat wurde in Dimethylsulfoxidlösung in Gegenwart sowie Abwesenheit von Tetrachlorkohlenstoff untersucht. Zum Vergleich damit wurde auch ein dimeres Chelat, d. h., 1,3-Diaminopropan-Kupfer(II)chelat als Starter gewählt. Es ergab sich, daß die Startfähigkeit dieses dimeren Chelats in Dimethylsulfoxid im Gegensatz zu derjenigen in Wasser höher als die des polymeren Chelats war. Das dimere Kupferchelat konnte die Polymerisation von Acrylnitril sogar in Abwesenheit von Tetrachlorkohlenstoff auslösen.
    Notes: The polymerization of acrylonitrile and methyl methacrylate initiated by polyvinylamine-copper(II) chelate was studied in dimethylsulfoxide solution, in the presence and absence of carbon tetrachloride. For comparison, the dimeric chelate(1,3-diaminopropane-copper(II) chelate) was also chosen as an initiator. The initiation activity of the dimeric chelate was found to be higher than that of the polymeric chelate in dimethylsulfoxide solution, different from the cases in aqueous media. The dimeric chelate could initiate the polymerization of acrylonitrile effectively, even in the absence of carbon tetrachloride.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1976.050490109
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  • 6
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes, 28.Part 27 of the series: K. Kimura, Y. Inaki, K. Takemoto, J. Macromol. Sci.-Chem., A9 (1975) 1399. Polymerization of acrylonitrile initiated by copper(II) chelates of vinylamine-vinylacetamide copolymers in dimethyl sulfoxide solution (1976)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 52 (1976), S. 129-142 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die durch Kupfer(II)-chelate von Polyvinylamin, Polyvinylacetamid und Vinylamin-Vinylacetamid-Copolymeren initiierte Polymerisation von Acrylnitril wurde in Dimethylsulfoxidlösung untersucht. Es ergab sich, daß die Kupfer(II)-chelate der Vinylamin-Vinylacetamid-Copolymeren die Polymerisation von Acrylnitril sogar in Abwesenheit von Tetrachlorkohlenstoff glatt auslösen können, während die Kupfer(II)-chelate von Polyvinylamin und Polyvinylacetamid die Polymerisation erst in Anwesenheit von Tetrachlorkohlenst off auslösen. Die Polymerisationsaktivität scheint in Beziehung mit der Stabilität dieser Copolymer-Kupfer(II)-chelate zu stehen. Aus den Ergebnissen der Polymerisation und sichtbarer Spektroskopie wurde der Auslösungsmechanismus diskutiert.
    Notes: The polymerization of acrylonitrile initiated by copper(II) chelates of polyvinylamine, polyvinylacetamide and vinylamine-vinylacetamide copolymers was studied in dimethyl sulfoxide solution. The copper(II) chelates of vinylamine-vinylacetamide copolymers were found to initiate the polymerization of acrylonitrile effectively, even in the absence of carbon tetrachloride, while those of polyvinylamine and polyvinylacetamide initiate only in the presence of carbon tetrachloride. The polymerization activity was assumed to be closely related to the stability of these copolymer-copper(II) chelates. From the results of the polymerization and the visible spectroscopy, an initiation mechanism is discussed.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1976.050520112
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  • 7
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes. IX. On the mechanism of photopolymerization of vinyl monomers initiated by Fe(III)salt-saccharide systems (1974)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 36 (1974), S. 27-40 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die photoinduzierte Polymerisation von Acrylnitril und Acrylamid wurde in wäBriger Lösung in Gegenwart vom System Fe(III)salz und Saccharid untersucht. Es ergab sich, daß der Effekt der verschiedenen Fe(III)salze auf die Polymerisationsgeschwindigkeit folgende Reihe hat: Fe(III)-nitrat, -perchlorat und -chlorid 〉 Fe(III)-ammoniumsulfat 〉 Kaliumferricyanid. Dagegen war der Effekt von neutralen Salzen wie Natriumnitrat, -chlorid und -perchlorat auf die Polymerisationsgeschwindigkeit vernachlässigbar. Die maximale Geschwindigkeit wurde im pH-Bereich von 2 bis 3 erreicht, und die spektropho-tometrisch bestimmte Geschwindigkeit des Fe(III)ionenverbrauchs zeigte ein Maximum im gleichen pH-Bereich. Aus den Ergebnissen wurde die Auslösungsspezies der in Frage kommenden Photopolymerisation diskutiert.
    Notes: Photoinduced polymerization of acrylonitrile and acrylamide in the presence of Fe(III) salt and saccharide was studied in aqueous solution. The effect of various Fe(III) salts on the rate of polymerization was found to be in the following order: Fe(III) nitrate, perchlorate and chloride 〉 Fe(III) ammonium sulfate 〉 potassium ferricyanide. On the other hand, the effect of neutral salts such as sodium nitrate, chloride and perchlorate on the rate of polymerization was negligibly small. The maximal rate of the photopolymerization attained at the pH region of about 2 to 3, and the rate of Fe(III) ion consumption determined spectrophotometrically revealed also a maximum in the same pH region. From these results, initiating species of the photopolymerization was discussed.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1974.050360103
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  • 8
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes. V. Effects of amines on the polymerization by copper(II) chelate and carbon tetrachloride initiating systemPart IV of the series: see5. (1972)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 27 (1972), S. 175-187 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Polymerisation von Acrylnitril durch das Initiatorsystem Kupfer(II)-Oligo(n)äthylen-(n+1)amin—Komplex/Tetrachlorkohlenstoff wurdeuntersucht. Die Polymerisation wurde durch Zugabe von Aminen zu dem Reaktionssystem beschleunigt. Es ergab sich für die Beschleunigung folgende Reihenfolge: prim.-Amin 〈sek.-Amin〈tert.-Amin〈Diamin〈Phenylendiamin. Die Effekte der Liganden in den Kupfer(II)-chelaten auf die Polymerisation wurden ebenfalls untersucht.
    Notes: The polymerization of acrylonitrile was studied by the system of copper(II)-oligo(n)ethylene-(n+1)amine complex and carbon tetrachloride. Addition of amines to the initiating system accelerates the polymerization. The acceleration by these amines was found to be in the following order: prim.-amine〈sec.-amine〈tert.-amine〈diamine〈phenylenediamine. Effects of the sort of the ligands in the copper(II) chelates on the polymerization were also studied.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1972.050270113
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  • 9
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes. XVIII.Part XVII. of the series: see3. Kinetics of the polymerization of acrylonitrile initiated by imidazole-copper-(II) complexes (1975)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 45 (1975), S. 51-64 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Kinetik sowie der Mechanismus der durch Imidazol und 2-substituierte Imidazol-Kupfer-(II)-Komplexe initiierten Polymerisation des Acrylnitrils wurden in Dimethylsulfoxidlösung bei 40-70°C untersucht. Die Geschwindigkeit der Polymerisation konnte wie folgt ausgedrückt werden: \documentclass{article}\pagestyle{empty}\begin{document}$ \begin{array}{l} {\rm R}_{\rm p} = {\rm k[I][AN]}^{\rm 2} {\rm ([I]} 〈 {\rm 2 \times 10}^{ - {\rm 2}} {\rm mol/l)} \\ {\rm R}_{\rm p} = {\rm k[I]}^{{\rm 1/4}} {\rm [AN]}^{\rm 2} {\rm ([I]} 〉 {\rm 2 \times 10}^{ - {\rm 2}} {\rm mol/l)} \\ \end{array} $\end{document} Die Bruttoaktivierungsenergie dieser Polymerisation lag im Bereich von 14.2 bis 69.1 KJ mol-1. Aus den Daten der elektronischen Spektren und der ESR wurde bestätigt, daß die in Frage kommende Polymerisation durch die freien Radikale ausgelöst werden konnte, die bei der Reduktion der Kupfer-(11)- zu Kupfer-(I)-Komplexen gebildet werden, die danach mit polymerem Acrylnitril einen neuen Komplex bilden.
    Notes: A study on the kinetics and mechanism of the polymerization of acrylonitrile initiated by imidazole and 2-substituted imidazole-copper-(II) complexes was made in dimethyl sulfoxide solution at 40-70°C. The rate of polymerization, Rp, could be expressed as follows: \documentclass{article}\pagestyle{empty}\begin{document}$ \begin{array}{l} {\rm R}_{\rm p} = {\rm k[I][AN]}^{\rm 2} {\rm ([I]} 〈 {\rm 2 \times 10}^{ - {\rm 2}} {\rm mol/l)} \\ {\rm R}_{\rm p} = {\rm k[I]}^{{\rm 1/4}} {\rm [AN]}^{\rm 2} {\rm ([I]} 〉 {\rm 2 \times 10}^{ - {\rm 2}} {\rm mol/l)} \\ \end{array} $\end{document} The overall activation energies of these polymerization processes are in a range from 14.2 to 69.1 KJ mole-1. From the data of electronic spectra and electron paramagnetic resonance, it was confirmed that the polymerization in question could be initiated by free radicals which were formed by the reduction of copper-(II) complex to copper-(I) complex, and the latter formed a new complex with polyacrylonitrile resulted.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1975.050450104
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  • 10
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes. 22. Initiation by α,ω-diaminoalkane-copper(II) complexesPart 21: Y. Inaki, M. Ishiyama, K. Hibino, K. Takemoto, Makromol. Chem., in press. (1975)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 48 (1975), S. 29-44 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die radikalisch durch verschiedene α,ω-Diaminoalkan-Kupfer(II)-Komplexe initiierte Polymerisation von Acrylnitril wurde in Dimethylsulfoxidlösung untersucht. Es ergab sich, daß stabile Komplexe, wie der Äthylendiamin-Kupfer(II)-Komplex, die Polymerisation fast nicht auslösen, während die instabilen Komplexe von 1,5-Diaminopentan, 1,6-Diaminohexan und n-Butylamin die Polymerisation gut auslösen konnten.Die Polymerisationsauslösung wurde ferner spektrophotometrisch untersucht. Die Reduktion der Kupfer(II)-Komplexe zu Kupfer(I)-Komplexen während der Polymerisation wurde durch sichtbare Spektroskopie sowie die Kuproin-Färbungsmethode bestätigt. Die Reduktionsgeschwindigkeit steht eng mit der Stabilität der Diamin-Kupfer(II)-Komplexe in Beziehung. Aus den Ergebnissen wird der Initiierungsmechanismus diskutiert.
    Notes: Free radical polymerization of acrylonitrile initiated by various α,ω-diaminoalkane-copper(II) complexes was studied in dimethyl sulfoxide solution. It was found that the stable copper(II) complexes, like ethylenediamine copper(II) complex, could hardly initiate the polymerization, while the unstable copper(II) complexes, such as 1,5-diaminopentane, 1,6-diaminohexane and n-butylamine complexes could initiate the polymerization.Initiation was further studied spectrophotometrically. Reduction of the copper(II) to the copper(I) complexes was ascertained to occur during the polymerization by visible spectroscopy and cuproin coloration method. The rate of reduction was related closely to the stability of the diamine-copper(II) complexes. From the results the initiation mechanism was discussed.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1975.050480103
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