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  • 1
    Electronic Resource
    Electronic Resource
    Mechanism and kinetics of hydrochloric acid initiated ɛ-caprolactam polymerization (1988)
    Springer
    Polymer bulletin 19 (1988), S. 539-546 
    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 A mechanistic scheme is suggested for lactam polymerisation initiated by hydrochloric acid on the basis of the general mechanism put forward earlier by Bertalan et al. According to this mechanism during the polymerization conditions are created which can initiate further polymerizations resulting in a characteristic inflection type kinetic curve. Experimental results can be well interpreted qualitatively on the basis of this mechanism, and therefore it can serve as a starting point also for a quantitative kinetic model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00283099
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mechanism and kinetics of the hydrochloric acid initiated polymerization of ɛ-caprolactam (1988)
    Springer
    Polymer bulletin 19 (1988), S. 547-554 
    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 A quantitative description of the hydrochloric acid initiated polymerization of caprolactam (CL) based on the previously proposed mechanism is given. Essential parameters were identified by strategy mainly based on principal component analysis. Our kinetic model is in good agreement with experiments and describes specific features of the kinetics of the process with the suggested parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00283100
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Thermal analysis of fibre forming polymers (1996)
    Springer
    Journal of thermal analysis and calorimetry 47 (1996), S. 463-473 
    Details
    ISSN: 1572-8943
    Keywords: composite fibres ; DMA ; fibre structure ; flame retarded polypropylene DSC ; grafted polyolefin fibres
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Different levels of fibre technologies and application, from synthesis to degradation has been studied using the methods of thermal analysis. Recent results of these studies on synthetic and natural fibres are summarized. The effect of chemical and physical modification of polyolefin fibres as well as the synthesis of polymer emulsion used as additive in fibre technologies could be followed by DSC, DMA, TG methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01983988
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Thermoanalytical study of nucleating effects in polypropylene composites (1996)
    Springer
    Journal of thermal analysis and calorimetry 47 (1996), S. 1155-1161 
    Details
    ISSN: 1572-8943
    Keywords: DSC studies ; engineering polypropylene ; nucleating effect ; polypropylene/liquid crystalline polyester blends ; transcrystallization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Nucleating and transcrystallization behaviour of additives in engineering PP composites and the effect of modified interfacial structure is the subject of this series of papers. The first part concentrates on polypropylene/liquid crystalline polyester blends. Increased crystallisation temperature and degree of crystallinity of polypropylene is characteristic to the blends containing different amount of LCP additive. Transcrystallization process governs the formation of crystalline structure in these systems in course of isothermal crystallisation at 132
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01979454
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  • 5
    Electronic Resource
    Electronic Resource
    Thermoanalytical study of nucleating effects in polypropylene composites (1996)
    Springer
    Journal of thermal analysis and calorimetry 47 (1996), S. 1163-1170 
    Details
    ISSN: 1572-8943
    Keywords: DSC studies ; elastomer containing polypropylene ; filler ; modified interfacial layer ; nucleating effect ; transcrystallization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Interfacial structure plays an important role in the performance of polypropylene composites. Transcrystalline interfacial layer were determined in talc filled polypropylene. The crystallization and melting behaviour of talc and CaCC3 filled polypropylene could be modified with smaller amount of additives like elastomer and surfactants. Through the effect of these additives the structure of interface and the degree of crystallinity could be controlled in filled polypropylene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01979455
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  • 6
    Electronic Resource
    Electronic Resource
    Thermoanalytical study of nucleating effects in polypropylene composites (1997)
    Springer
    Journal of thermal analysis and calorimetry 48 (1997), S. 717-726 
    Details
    ISSN: 1572-8943
    Keywords: ammonium-polyphosphate ; DSC studies ; elastomer interfacial layer ; flame retardant polypropylene ; nucleating effect ; silicone additive
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Engineering application of polypropylene requires the employment of flame retardants. Reactive compounding of ammonium-polyphosphate and synergist additives with polypropylene is an effective way for forming flame retardant polypropylene. Both the ammonium-polyphosphate and the additives used for improving its performance effect the crystallization and melting behavior of polypropylene. Encapsulation of flame retardant additives with appropriate elastomer, in order to improve their water resistancy, causes further changes in degree of crystallinity and consequently in the mechanical properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01997177
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    Paper (German National Licenses)
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