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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
    Functional monomers and polymers. CXIX.For part CXVIII, see J, Liu, K. Kondo, and K. Takemoto, Makromol. Chem., 185, 2125 (1984). Synthesis and photochemical reaction of polymethacrylate derivative containing 6-cyanouracil (1986)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 24 (1986), S. 119-132 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A polymethacrylate derivative containing 6-cyanouracil was prepared, and its photochemical reaction was studied. The 6-cyanouracil derivative was found to show high reactivity for the photochemiccal reaction. The photochemical-reaction product was identified as a cyclobutanetype photodimer, and the photodimer was formed in high yield even from the monomeric compound of 6-cyanouracil under UV irradiation in low concentration. The quantum yield of the photodimerization of the 6-cyanouracil derivative was greater than that of the thymine derivative. The photodimerization of the 6-cyanouracil derivative could not be quenched by usual triplet quenchers, but was found to be quenched by the polymeric derivative of adenine, suggesting a specific interaction.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1986.080240111
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  • 5
    Electronic Resource
    Electronic Resource
    Functional monomers and polymers 159Part 158 of the series: H. Tsutsumi, M. Miyata, and K. Takemoto, Polymer J., 19, 1321 (1987). synthesis and photochemical reactions of polymers containing thymine photodimer units in the main chain (1988)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 26 (1988), S. 3297-3308 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polyamides containing thymine photodimer units in the main chain were synthesized, and their photolysis by ultraviolet irradiation below 260 nm were studied in film state. Photodimers of thymine derivatives were obtained by photochemical reaction of the carboxylic acid derivatives of thymine in aqueous solution irradiated above 270 nm. An attempt was made to resolve the isomers of the photodimers, and the two kinds of cis isomers [cis-syn(head to head), and cis-anti(head to tail)] were isolated successfully. The polyamides were prepared by condensation of the photodimers with diamine using an activated ester method. The photodissociation of the thymine photodimer in the polymer main chain caused the breakage of the polymer chains, leading to the production of oligomers and dimer compounds containing thymine bases at the ends of the molecule. The dissociation rate of the polymer did not depend on the kind of the thymine photodimer which was in the main chain of the polymer.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1988.080261215
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  • 6
    Electronic Resource
    Electronic Resource
    Functional monomers and polymers. CLIVFor Part CLIII, see M. Miyata, M. Shibakami, W. Goonewardena, and K. Takemoto, Chem. Lett., 1987, 605.. Application of nucleic acid base containing polymers to high performance liquid chromatography (1989)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 27 (1989), S. 2593-2609 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Poly-L-lysine (PLL) derivatives containing pendant nucleic acid base, such as thymine or adenine, were bonded successfully to 3-aminopropylsilanized silica (APS-silica) and silica gel. These resins were found to be useful as the column of high performance liquid chromatography (HPLC) for the selective separation of oligoethyleneimine derivatives having pendant thymine or adenine bases.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1989.080270809
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  • 7
    Electronic Resource
    Electronic Resource
    Functional monomers and polymers. CXXXI.For Part CXXX, see M. Miyata, K. Okanishi, and K. Takemoto, Polymer J., 18, 185 (1986).. Synthesis and interaction studies on polyacrylamide and polymethacrylamide derivatives containing nucleic acid bases (1986)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 24 (1986), S. 3201-3217 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Acrylamide and methacrylamide derivatives of nucleic acid bases were prepared from the corresponding aminoethyl derivatives. Free-radical polymerization of these monomers in water or in organic solvents gave their polymers. From the studies of the polymer complex formation by UV spectroscopy, it was found that extremely stable polymer complexes were formed between complementary polymers containing nucleic acid bases.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1986.080241205
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  • 8
    Electronic Resource
    Electronic Resource
    Functional monomers and polymers. CXXXIIFor Part CXXXI, see ref. 11.. Template polymerization of methacrylamide derivatives containing nucleic acid bases (1986)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 24 (1986), S. 3249-3262 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Free-radical polymerizations of methacrylamide derivatives containing nucleic acid bases were studied in the presence of the polymethacrylamide having complementary nucleic acid bases as template polymers. The rate of the polymerization did not show remarkable difference in the presence or the absence of the template polymer. A stable polymer complex, however, was precipitated from the polymerization system, and was found to be different in a thermal analysis from the polymer complex which was obtained by mixing of the complementary polymers in solution. Free-radical copolymerizations in the presence of the template polymers also supported the template polymerization.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1986.080241209
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  • 9
    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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  • 10
    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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