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Catalog Publications

Year 2010
Year 2015
  • Towards sugar-derived polyamides as environmentally friendly materials
    Publication

    - Polymer Chemistry - Year 2015

    As part of our ongoing study investigating isohexide-based polyamides, we have synthesized isosorbide(bis(propan-1-amine)) (DAPIS) and studied its reactivity in the polymerization towards fully biobased polyamides. Polycondensation of nylon salts with various contributions of DAPIS afforded a family of homo- and copolyamides, which were characterized using complementary spectroscopic techniques. The chemical structure of the materials...

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  • Synthetic Principles Determining Local Organization of Copolyesters Prepared from Lactones and Macrolactones
    Publication

    - MACROMOLECULES - Year 2015

    A highly effective and facile technique for catalytic ring-opening copolymerization (cROP) of lactones viz. ε- caprolactone and ε-decalactone with ω-pentadecalactone is being described. The reactions were mediated by Zn- and Cabased tridentate Schiff base complexes and benzyl alcohol as initiator. The catalysts were successfully employed for the preparation of numerous block and random copolymers. To unravel the composition of...

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Year 2017
Year 2014
  • Topological behavior mimicking ethylene–hexene copolymers using branched lactones and macrolactones
    Publication
    • L. Jasińska-Walc
    • M. Ryan Hansen
    • D. Dudenko
    • A. Różański
    • M. Bouyahyi
    • M. Wagner
    • R. Graf
    • R. Duchateau

    - Polymer Chemistry - Year 2014

    Polyolefins are of paramount importance in the world of polymers due to their technological and economic potential.1 However, their nonpolar character significantly restricts the compatibility and adhesion properties, which consequently limits their versatility. Moreover, an intensified demand for materials from renewable resources can also become a problematic venture for the current polyolefin industry.2 Although Braskem and...

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  • Phase separation in poly(butylene terephthalate)-based materials prepared by solid-state modification
    Publication
    • E. Gubbels
    • L. Jasińska-Walc
    • D. Hermida-Merino
    • M. R. Hansen
    • B. Noordover
    • A. Spoelstra
    • H. Goossens
    • C. E. Koning

    - POLYMER - Year 2014

    The morphology of a series of poly(butylene terephthalate) (PBT)/fatty acid dimer diol (FADD)-based copolyesters prepared by solid-state modi fi cation (SSM) was studied. It was shown that in copolyesters containing less than 10 wt% FADD two different phases, i.e. a PBT crystalline phase and a PBT-rich amorphous phase, are present. The FADD residues were more or less homogeneously distributed throughout the interlamellar regions....

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Year 2007
Year 2008
Year 2004
Year 2005
Year 2020
Year 2006
Year 2018
Year 2012
  • Synthesis of amides under microwave irradiation
    Publication

    Amides belong to the most important carboxylic acid derivatives. They are constituents of natural compounds like peptides and proteins. They found applications in many branches of science and industry, especially in pharmaceutical and polymer science. Conventional procedures for amide preparation involve reaction between amine and carboxylic acid or their more active derivatives such as acid chlorides, acid anhydrides or esters....

  • Structure and Molecular Dynamics in Renewable Polyamides from Dideoxy-Diamino Isohexide
    Publication

    - MACROMOLECULES - Year 2012

    The chemical structure, the conformation, andthe flexibility of the polymer chain fragments present in thepolyamides synthesized from 2,5-diamino-2,5-dideoxy-1,4;3,6-dianhydrosorbitol, 1,4-diaminobutane, and either sebacic orbrassylic acid have been studied by liquid-state 2D NMRspectroscopy viz. correlation spectra (COSY) and heteronuclearmultiple-bond correlation spectra (gHMBC), by 13Ccross-polarization/magic-angle spinning...

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  • Semicrystalline Polyesters Based on a Novel Renewable Building Block
    Publication
    • J. Wu
    • P. Eduard
    • S. Thiyagarajan
    • L. Jasińska-Walc
    • A. Rozanski
    • C. Fonseca Guerra
    • B. A. J. Noordover
    • J. Van Haveren
    • C. E. Koning

    - MACROMOLECULES - Year 2012

    Isohexides, like e.g. isosorbide, are well-known carbohydrate-based rigid diols which are capable of dramatically increasing the glass transition temperature of polyesters. However, their relatively low reactivity has thus far hampered large-scale industrial applications in the polymer field. Recently, with the aim to increase reactivity while at the same time retain rigidity, we have developed a new isoidide dicarboxylic acid...

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Year 2013
Year 2021
Year 2019
  • Randomly Functionalized Polyethylenes: In Quest of Avoiding Catalyst Deactivation
    Publication

    - ACS Catalysis - Year 2019

    Well-defined randomly functionalized polyolefins produced by catalysis form an interesting class of polymers with great potential for various applications. One of the major challenges for the production of these materials forms the incompatibility of the commonly used electrophilic group 4 metal based catalysts and the desired nucleophilic, especially protic functionalities like hydroxyl and carboxylic acid groups. Although pacification...

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Year 2011
Year 2022
Year 2009
Year 2002