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  • 1960-1964  (18)
  • 1955-1959  (8)
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  • 1
    Electronic Resource
    Electronic Resource
    Remark on the paper by R. L. Herbst, Jr., and R. E. Martin, entitled “relative reactivities of polymer radicals in vinyl polymerizations” (1955)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 17 (1955), S. 309-310 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1955.120178415
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  • 2
    Electronic Resource
    Electronic Resource
    Q and e values for several chain transfer agents (1955)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 17 (1955), S. 142-145 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1955.120178319
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  • 3
    Electronic Resource
    Electronic Resource
    Induction period in the cationic polymerization of styrene-stannic chloride-benzene system (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 20 (1956), S. 581-583 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1956.120209618
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Chain transfer constants of polyethylene glycol and its dodecyl ether in radical polymerization (1960)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 43 (1960), S. 509-516 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Chain transfer constants of the end groups (CE) and of the middle portions (CM) of the polymer chain of polyethylene glycol and its dodecyl ether were determined at 60°C. in vinyl acetate polymerization. In the case of polyethylene glycol, CE and CM represent the chain transfer constants of (HO—C2H4—) and that of (—CH2CH2O—) which were estimated as 0.004 and 0.0017 respectively, and were compared with the chain transfer constants of propanol and ethanol. The chain transfer constant of the dodecyl radical in polyethylene glycol dodecyl ether is estimated as 0.001, which is in fairly good agreement with that obtained theoretically from the chain transfer constant of the methylene group in acetic esters, but not from that in alcohols. This situation may be attributed to the inhibition of resonance energy transfer by the etherlike oxygen atom.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1960.1204314220
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Polyaddition of p-aminobenzylcyanide (1963)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 62 (1963), S. 208-210 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1963.020620122
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  • 6
    Electronic Resource
    Electronic Resource
    Molecular orbital theory of reactivity in radical polymerization. Part II (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 20 (1956), S. 537-550 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Several problems in the process of radical polymerization, e.g., the relation between the chemical structure of vinyl monomer and its chemical reactivity, the prevalence of head-to-tail configuration, the reactivity of initiator radicals, the alternation tendency in heteropolymerization, and the relative ease of coupling in several cases of homopolymerization, are treated by the theory previously proposed by the present authors, in which reactivity is represented by the magnitude of stabilization energy due to π conjugation between a monomer and a radical in the transition state. In addition, a brief discussion on the existing theories of reactivity and some applications of Hush's method to the problem of termination are presented. The agreement between results of calculation and experiment is shown to be almost statisfactory.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1956.120209612
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  • 7
    Electronic Resource
    Electronic Resource
    Molecular orbital theory of reactivity in ionic polymerizations (1957)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 26 (1957), S. 311-321 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The stabilization energy due to the conjugation taking place between a monomer and an ion in the transition state is calculated by the LCAO perturbation theory, in the same way in which the reactivity in radical copolymerization has previously been treated. In terms of this stabilization energy, the reactivity ratios of several monomer pairs in ionic copolymerization are satisfactorily interpreted. It is noted that, by the present method, both the radical and ionic copolymerization can be treated in a unified manner, whereas it is difficult in existing empirical methods. The positions of attack in polymer ions as well as in monomers, which are predicted by the frontier electron densities, are shown to agree well with experimental facts. The relative reactivities of vinyl monomers in ionic homopolymerization is also explained successfully by the magnitude of the localization energy computed by the LCAO method.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1957.1202611406
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  • 8
    Electronic Resource
    Electronic Resource
    Solvent effects in the low temperature cationic polymerization of α-methylstyrene (1958)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 33 (1958), S. 491-493 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1958.1203312650
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  • 9
    Electronic Resource
    Electronic Resource
    Theoretical considerations on the mechanism of stereospecific cationic polymerization in homogeneous systems (1959)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 39 (1959), S. 487-492 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A theoretical interpretation of the mechanism of stereospecific cationic polymerization in a homogeneous system at low temperature is given. The existance of a counterion in the vicinity of a charged carbon atom of a growing polymer ion is assumed and a repulsive interaction is considered to be between the substituent of the attacking monomer and that of the polymer. The most probable geometrical conformation of a monomer and a polymer ion in the transition state is determined by the magnitude of stabilization due to the overlap between atomic orbitals of ion and monomer. Our experimental results can be explained satisfactorily by this mechanism.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1959.1203913540
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  • 10
    Electronic Resource
    Electronic Resource
    Relative reactivities of polymer radicals (1960)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 42 (1960), S. 535-544 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The present investigation is concerned with the relationship between P, the reactivity of a radical, and Q that of a monomer in the propagation reaction. At first, P values are calculated from the accumulated data of the rate constants of the propagation reaction. From these results, the relation is shown to be represented by the following equation: \documentclass{article}\pagestyle{empty}\begin{document}$ \log {\rm }P = kQ + a(k 〈 0) $\end{document} where k and a are constants. The P values in the termination reaction (Pt) are also calculated, and the relation between these values and Q values are examined. The results show that the similar relation found in the propagation reaction holds in this step too. By applying the method of Evans and co-workers, a sufficient explanation for this equation is not obtained, but the analogous equation can be derived. The present authors suggest that the inverse proportion between log P and Q appears to be based on the following different principles: (1) the inverse proportion between the magnitude of localization energy of the radical and that of monomer, and (2) the linear free energy relationship found in organic chemistry.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1960.1204214020
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