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  • 1
    Electronic Resource
    Electronic Resource
    ESR and NMR study of the γ-ray-induced postpolymerization of vinyl monomers adsorbed on zeolite (1976)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 14 (1976), S. 2703-2724 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The γ-ray-induced postpolymerization of acrylonitrile and methyl methacrylate adsorbed on Linde zeolite 13X irradiated at 77°K has been studied between 303 and 343°K as a function of the amount of adsorbed monomer and of the irradiation dose. The change in the nature and the concentration of free radical with temperature and duration of the postpolymerization was followed by the ESR method, whereas the formation of polymer was monitored continuously by the decay of the 1H-NMR absorption line of the monomer under high-resolution conditions. It was found that the overall postpolymerization kinetics may be accounted for by assuming an exponential decay of radical propagation and recombination reactions with chain length. The tacticity of the polymer recovered by destroying the matrix in hydrofluoric acid was determined by 13C-NMR. The probability of isotactic addition of AN and MMA is larger than in the radical polymerization in solution owing likely to the association of adsorbed monomer molecules in pairs preforming an isotactic diad.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1976.170141112
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  • 2
    Electronic Resource
    Electronic Resource
    Oligomérisation anionique de l'ethylène. I. Etude cinétique (1977)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 15 (1977), S. 875-895 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A kinetic study of ethylene oligomerization in hexane, in the presence of n-BuLi-TMEDA complexes, allowed us to suggest a new mechanism for anionic ethylene oligomerization. n-BuLi and n-Bu(CH2CH2)Li species have the same reactivity. The RLi-TMEDA complex in a 1-to-1 stoichiometry is the active species. The following kinetic equation has been established: \documentclass{article}\pagestyle{empty}\begin{document}$$ V_p = k_p K_D ^{{1 \mathord{\left/ {\vphantom {1 2}} \right. \kern-\nulldelimiterspace} 2}} \left[ {\left( {{\rm BuLi} - {\rm TMEDA}} \right)_2 ^{{1 \mathord{\left/ {\vphantom {1 2}} \right. \kern-\nulldelimiterspace} 2}} } \right]\left[ {{\rm Et}} \right] $$\end{document} It reflects the intervention of associated species (n-BuLi-TMEDA)2 as well as the influence of the concentration of the complexing agent on the kinetics of oligomerization.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1977.170150410
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  • 3
    Electronic Resource
    Electronic Resource
    Caractère séquencé des polyacroléines préparées par voie anionique (1973)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 11 (1973), S. 1631-1643 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Several independent studies confirm that anionic polyacroleins are block polymers. Chemical analysis, thermogravimetric studies, and variations of the refractive index increment and sequences lengths all support this hypothesis.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1973.170110712
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  • 4
    Electronic Resource
    Electronic Resource
    N-Aryltetramethylguanidines, living catalysts for polyurethane foams (1975)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 13 (1975), S. 2031-2033 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: N-Aryltetramethylguanidines catalyze the formation of polyurethane foams by a novel exchange reaction involving C=N double bond of the guanidines and the isocyanate groups of the polyisocyanates. The catalyst sites are transferred to the growing polymer network, achieving a rapid catalytic build-up of the foam.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1975.170130907
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  • 5
    Electronic Resource
    Electronic Resource
    Synthesis of light-sensitive arenesulfonylazido polycarboxylic acids (1976)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 14 (1976), S. 565-571 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Several light-sensitive arenesulfonylazido polycarboxylic acids were synthesized by a one-step reaction of a polymeric anhydride with a light-sensitive monofunctional alcohol, or by the reverse reaction, i.e., reaction of a polymeric alcohol with a light-sensitive monofunctional anhydride. The polycarboxylic acids are soluble in polar organic solvents and in aqueous base. Neutralization of part of the carboxyl groups gives rise to the formation of water-soluble polymers. Coreaction of poly(maleic anhydride-co-methyl vinyl ether) with 2-hydroxyethyl 4-sulfonylazidocarbanilate and 2-hydroxyethyl trans-2,5-dimethoxystilbene-4′-carbamate produces a light-sensitive polycarboxylic acid with “built-in” sensitizer.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1976.170140305
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  • 6
    Electronic Resource
    Electronic Resource
    Oligomérisation anionique de l'ethylène. II. Etude des paramètres thermodynamiques (1977)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 15 (1977), S. 897-900 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A kinetic study, as a function of temperature, of ethylene oligomerization by the n-BuLi-TMEDA complex allowed us to evaluate the thermodynamic parameters (ΔS
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1977.170150411
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  • 7
    Electronic Resource
    Electronic Resource
    Oligomérisation anionique de l'ethylène. III. Application à la synthèse d'alcools à longue chaine (1977)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 15 (1977), S. 901-912 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Living oligomers of ethylene obtained by n-BuLi complexed with TMEDA have been deactivated by ethylene oxide. The nuclear magnetic resonance study of the product obtained allowed us to follow the influence of TMEDA toward the functionalization. Three products have been characterized: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm Bu}\hbox{---} \left( {{\rm CH}_2 \hbox{---} {\rm CH}_2 } \right)_{\rm m} \hskip-3pt\hbox{---} {\rm CH}_{\rm 2} \hbox{---} {\rm CH}_{\rm 2} \hbox{---} {\rm OH}} \\ {{\rm Bu}\hbox{---} \left( {{\rm CH}_2 \hbox{---} {\rm CH}_2 } \right)_{\rm n} \hskip-3pt\hbox{---} {\rm CH}\hbox{=\hskip-1.5pt=} {\rm CH}_{\rm 2} } \\ {{\rm Bu}\hbox{---} \left( {{\rm CH}_2 \hbox{---} {\rm CH}_2 } \right)_{\rm p} \hskip-3pt\hbox{---} {\rm CH}_{\rm 2} \hbox{---} {\rm CH}_{\rm 3} } \\ \end{array} $$\end{document} By increasing the ratio [TMEDA]/[n-BuLi] one obtains a decrease of the functionalization reaction.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1977.170150412
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  • 8
    Electronic Resource
    Electronic Resource
    Polysulfonamide-ureas (1967)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 5 (1967), S. 3212-3213 
    Details
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1967.150051220
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  • 9
    Electronic Resource
    Electronic Resource
    Synthesis and preliminary evaluation of ordered aliphatic poly(benzoxazole amides)In honor of C. S. Marvel on the occasion of his 75th birthday.,Paper presented at the IUPAC Symposium on Macromolecular Chemistry, Budapest, 1969. (1970)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 8 (1970), S. 1955-1965 
    Details
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Slightly modified conventional techniques were successfully applied to prepare aliphatic benzoxazolediamines and the corresponding high molecular weight polyamides, which could be spun into excellent fibers. Compared to regular aliphatic polyamides, these products showed higher transition temperatures, improved thermal and light stability, and increased affinity for acid dyes. In addition - quite unexpectedly - these fibers were highly crystalline and oriented after drawing at elevated temperatures.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1970.150080805
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