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Wyniki wyszukiwania dla: MELT-SPINNING

  • An Investigation of Polyamides Based on Isoidide-2,5-dimethyleneamine as a Green Rigid Building Block with Enhanced Reactivity

    Publikacja
    • J. Wu
    • L. Jasińska-Walc
    • D. Dudenko
    • A. Rozanski
    • M. Ryan Hansen
    • D. Van Es
    • C. E. Koning

    - MACROMOLECULES - Rok 2012

    Novel, semicrystalline polyamides and copolyamides were synthesized from a new carbohydrate-based diamine, namely isoidide-2,5-dimethyleneamine (IIDMA). In combination with 1,6-hexamethylene diamine (1,6-HDA) as well as the biobased sebacic acid (SA) or brassylic acid (BrA), the desired copolyamides were obtained via melt polymerization of the nylon salts followed by a solid-state polycondensation (SSPC) process. Depending on the...

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  • Lignin-based carbon fibers for renewable and multifunctional lithium-ion battery electrodes

    Publikacja
    • A. Nowak
    • J. Hagberg
    • S. Leijonmarck
    • H. Schweinebarth
    • D. Baker
    • A. Uhlin
    • P. Tomani
    • G. Lindbergh

    - HOLZFORSCHUNG - Rok 2018

    Lignin-based carbon fibers (LCFs) from the renewable resource softwood kraft lignin were synthesized via oxidative thermostabilization of pure melt-spun lignin and carbonization at different temperatures from 1000°C to 1700°C. The resulting LCFs were characterized by tensile testing, scanning electron microscopy (SEM), X-ray diffraction (XRD) and confocal Raman spectroscopy. The microstructure is mainly amorphous carbon with some...

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