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  • 1
    Electronic Resource
    Electronic Resource
    A polymer with a copoly(ether-ester-amidic) structure. I. Synthesis and preliminary physico-chemical characterization (1986)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 37 (1986), S. 278-281 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Ein Verfahren zur Herstellung eines Blockcopolymers mit A-B-A-Sequenzen wird beschrieben. In dem Copolymer ist ω-ω′-Dihydroxy-polyethylenglycol über Esterbindungen zwischen zwei Polycaproamidketten gebunden. Die erhaltene Substanz wurde charakterisiert. Das Copolymer ist isomorph mit Polycaproamid. Thermische Behandlung führt wie im Polycaproamid zur γ→α Umwandlung der Kristallite. Der Einfluß der Feuchtegehaltes auf die Glasübergangstemperatur und den Speichermodul wird diskutiert.
    Notes: A procedure is described for the preparation of a block copolymer with A-B-A sequences in which ω-ω′-dihydroxy-poly-(ethylene glycol) is inserted between two polymeric monoacidic chains of polycaproamide and bonded to them by means of ester links. The resulting material was characterized. The copolymer is isomorphous with the polycaproamide. Thermal treatments induce a crystalline transition γ → α as in polycaproamide. The influence of the moisture content on the glass transition temperature and on the storage modulus is discussed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1986.010370506
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A polymer with a copoly(ether-ester-amidic) structure. II. Laboratory spinning-drawing operations and fibre characterizationPart I: Acta Polymerica 37 (1986) No 5, 278-281 (1986)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 37 (1986), S. 351-353 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Herstellung und mechanische Charakterisierung von Fasern aus einem neuen Copoly(ether-ester-amid) werden beschrieben. Die mechanischen Eigenschaften sind etwas schlechter als die von Polyamid 6, aber ausreichend für textile Anwendungen. Die Fasern weisen eine größere Feuchtigkeitsabsorption auf. Dies führt zu einem angenehmeren Verhalten der Fasern und verhindert die elektrostatische Aufladung.
    Notes: Preparation and mechanical characterization of fibres from a new copoly(ether-ester-amide) are reported. The mechanical characteristics are slightly lower than those of polyamide 6, but satisfactory for textile use, and the fibres have larger moisture absorption. This gives rise to more comfortable fibres preventing the accumulation of electrostatic charges.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1986.010370606
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    PETP fractionation parameters correlated to polymerization processes and spinnability (1988)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 39 (1988), S. 298-302 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Eine Fällungsmethode zur Molekülmassenfraktionierung ermöglicht die relativ schnelle Charakterisierung von Poly(ethylenterephthalat). ein willkürlich definierter Parameter zur Kennzeichnung der Molmassenhomogenität wird eingeführt. Der Fraktionierungsparameter eignet sich zur Kontrolle des Polymerisationsprozesses und der Konstanz der Eigenschaften des Polymers.
    Notes: A precipitation method of molecular weight fractionation allows the fairly rapid characterization of poly(ethylene terephthalate). An arbitrarily defined parameter can express the degree of macromolecular homogeneity. The fractionation parameter is also useful for the control of the polymerization process and the constancy of the polymer properties.
    Additional Material: 10 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1988.010390607
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Polymerization of β-isovalerolactone (1967)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 5 (1967), S. 891-901 
    Details
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The polymerization of β,β′-dimethyl-β-propiolactone with various catalysts was investigated. A detailed study on the heterogeneous polymerization initiated by triethyl aluminum was carried out. A reaction mechanism is suggested on the basis of chemical analysis of the polymer.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1967.150050415
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    Paper (German National Licenses)
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