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  • 1
    Electronic Resource
    Electronic Resource
    Melting behavior and crystalline order of ß-crystalline phase poly(propylene) (1993)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 194 (1993), S. 269-277 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Differential scanning calorimetry and X-ray diffraction experiments on ß-nucleated poly(propylene) were made on samples crystallized at different temperatures. The crystal perfection was shown to vary with crystallization temperature. The observed multiple peaks could be related to a ß1-phase with defective inclination of the chains, a recrystallized or original ß2-phase of more perfect inclination, and the α-phase.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1993.021940123
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Studies on the β-form of isotactic polypropylene, 2. The melting behavior of predominantly β-form samples (1986)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 187 (1986), S. 643-652 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Effects of crystallization conditions, heating rate, and isothermal annealing on the melting behavior of isotactic polypropylene samples with predominantly β-form were studied by differential scanning calorimetry. The results show that the β-form of these samples has a higher thermal stability and a lower recrystallization ability to the α-form after melting than the β-form of other samples.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1986.021870316
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Radical copolymerization of 2-ethylacrylic acid and methacrylic acid (1990)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 28 (1990), S. 3155-3163 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Copolymers of 2-ethylacrylic acid (EAA) and methacrylic acid (MAA) were prepared in bulk and in N,N-dimethylformamide (DMF). Although precipitation of the copolymers was observed in bulk, the reaction mixtures remained apparently homogeneous in DMF. Best-fit terminal-model reactivity ratios were determined by a nonlinear least squares technique to be rMAA = 1.14 and rEAA = 0.23 in bulk, and rMAA = 1.91 and rEAA = 0.09 in 50% DMF solution. Examination of 13C-NMR spectra provided convincing evidence for the formation of statistical copolymers. Copolymerizations richer in MAA provided copolymers of higher molecular weights.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1990.080281121
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    Paper (German National Licenses)
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