693.932 PEOPLE
| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jannasch, Patric
Lund University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (61/61 displayed)
- 2024Semi-Crystalline and Amorphous Polyesters Derived from Biobased Tri-Aromatic Dicarboxylates and Containing Cleavable Acylhydrazone Units for Short-Loop Chemical Recyclingcitations
- 2024Semi-Crystalline and Amorphous Polyesters Derived from Biobased Tri-Aromatic Dicarboxylates and Containing Cleavable Acylhydrazone Units for Short-Loop Chemical Recyclingcitations
- 2024Reversibly Crosslinked Polyurethane Fibres from Sugar-Based 5-Chloromethylfurfural: Synthesis, Fibre-Spinning and Fibre-to-Fibre Recyclingcitations
- 2024Improved chemical recyclability of 2,5-furandicarboxylate polyesters enabled by acid-sensitive spirocyclic ketal unitscitations
- 2023Short-Loop Chemical Recycling via Telechelic Polymers for Biobased Polyesters with Spiroacetal Unitscitations
- 2021Biobased aliphatic polyesters from a spirocyclic dicarboxylate monomer derived from levulinic acidcitations
- 2021Styrenic BAB triblock copolymers functionalized with lithium (N-tetrafluorophenyl)trifluoromethanesulfonamide as solid single-ion conducting electrolytescitations
- 2021Synthesis and melt-spinning of partly bio-based thermoplastic poly(cycloacetal-urethane)s toward sustainable textilescitations
- 2021Durable and highly proton conducting poly(arylene perfluorophenylphosphonic acid) membranescitations
- 2021Durable and highly proton conducting poly(arylene perfluorophenylphosphonic acid) membranescitations
- 2020Rigid biobased polycarbonates with good processability based on a spirocyclic diol derived from citric acidcitations
- 2020Rigid biobased polycarbonates with good processability based on a spirocyclic diol derived from citric acidcitations
- 2019Single-ion conducting polymer electrolytes with alternating ionic mesogen-like moieties interconnected by poly(ethylene oxide) segmentscitations
- 2019Structural control of charge storage capacity to achieve 100% doping in vapor phase-polymerized PEDOT/tosylatecitations
- 2019Synthesis, life cycle assessment, and polymerization of a vanillin-based spirocyclic diol toward polyesters with increased glass-transition temperaturecitations
- 2019Synthesis, life cycle assessment, and polymerization of a vanillin-based spirocyclic diol toward polyesters with increased glass transition temperaturecitations
- 2019Synthesis and polymerization of isosorbide-based monomethacrylates
- 2019Highly conductive nonstoichiometric protic poly(ionic liquid) electrolytescitations
- 2018Enzymatic synthesis and polymerization of isosorbide-based monomethacrylates for high-Tg plasticscitations
- 2017Effect of hydrophobically modified graphene oxide on the properties of poly(3-hydroxybutyrate-co-4-hydroxybutyrate)citations
- 2016Melt processability and thermomechanical properties of blends based on polyhydroxyalkanoates and poly(butylene adipate-co-terephthalate)citations
- 2015Effect of additives on the melt rheology and thermal degradation of poly[(R)-3-hydroxybutyric acid]citations
- 2015Effect of additives on the melt rheology and thermal degradation of poly[(R)-3-hydroxybutyric acid]citations
- 2014Network formation of graphene oxide in poly(3-hydroxybutyrate) nanocompositescitations
- 2014Network formation of graphene oxide in poly(3-hydroxybutyrate) nanocompositescitations
- 2013Well-defined phosphonated homo- and copolymers via direct ring opening metathesis polymerizationcitations
- 2013Performance of phosphonated hydrocarbon ionomer in the fuel cell cathode catalyst layercitations
- 2013Segmented tetrasulfonated copoly(arylene ether sulfone)s: improving proton transport properties by extending the ionic sequencecitations
- 2012Multiblock copolymers with highly sulfonated blocks containing di- and tetrasulfonated arylene sulfone segments for proton-exchange membrane fuel cell applicationscitations
- 2011Synthesis, nanostructures and properties of sulfonated poly(phenylene oxide) bearing polyfluorostyrene side chains as proton conducting membranescitations
- 2011Synthesis, nanostructures and properties of sulfonated poly(phenylene oxide) bearing polyfluorostyrene side chains as proton conducting membranescitations
- 2010Locating sulfonic acid groups on various side chains to poly(arylene ether sulfone)s: effects on the ionic clustering and properties of proton-exchange membranescitations
- 2010Locating sulfonic acid groups on various side chains to poly(arylene ether sulfone)s: effects on the ionic clustering and properties of proton-exchange membranescitations
- 2010Influence of the polymer backbone structure on the properties of aromatic ionomers with pendant sulfobenzoyl side chains for use as proton-exchange membranescitations
- 2010Influence of the polymer backbone structure on the properties of aromatic ionomers with pendant sulfobenzoyl side chains for use as proton-exchange membranescitations
- 2010Grafting poly(phenylene oxide) with poly(vinylphosphonic acid) for fuel cell membranescitations
- 2009Nanostructured proton conducting polystyrene - poly(vinylphosphonic acid) block copolymers prepared via sequential anionic polymerizationscitations
- 2007Polymer electrolyte membranes by in situ polymerization of poly(ethylene carbonate-co-ethylene oxide) macromonomers in blends with poly(vinylidene fluoride-co-hexafluoropropylene)citations
- 2006Proton-conducting nanocomposite membranes containing organically modified zirconium phosphate for high-temperature PEMFC operation
- 2006Solid electrolyte membranes from semi-interpenetrating polymer networks of PEG-grafted polymethacrylates and poly(methyl methacrylate)citations
- 2006Solid electrolyte membranes from semi-interpenetrating polymer networks of PEG-grafted polymethacrylates and poly(methyl methacrylate)citations
- 2006Polysulfones tethered with benzimidazolecitations
- 2006Block copolymers containing intrinsically proton-conducting blocks tethered with benzimidazole unitscitations
- 2006Gas diffusion electrodes and membrane electrode assemblies based on a sulfonated polysulfone for high-temperature PEMFCcitations
- 2006Gas diffusion electrodes and membrane electrode assemblies based on a sulfonated polysulfone for high-temperature PEMFCcitations
- 2005Poly(ethylene oxide)/Laponite nanocomposites via melt-compounding: effect of clay modification and matrix molar masscitations
- 2005Effect of clay modifier and matrix molar mass on the structure and properties of poly(ethylene oxide)/Cloisite nanocomposites via melt-compoundingcitations
- 2005Melt-compounded salt-containing poly(ethylene oxide)/clay nanocomposites for polymer electrolyte membranescitations
- 2005Gel electrolyte membranes derived from co-continuous polymer blendscitations
- 2005Gel electrolyte membranes derived from co-continuous polymer blendscitations
- 2005Intrinsically proton-conducting benzimidazole units tethered to polysiloxanescitations
- 2004Medicament container of polymer of cyclic hydrocarbon for storing a liquid medicament
- 2004Characteristics of gel electrolytes formed by self-aggregating comb-shaped polyethers with end-functionalised side chainscitations
- 2003Ion Conductive Electrolyte Membranes Based on Co-Continuous Polymer Blendscitations
- 2003Ion Conductive Electrolyte Membranes Based on Co-Continuous Polymer Blendscitations
- 2002Amphiphilic solid polymer electrolytescitations
- 2002Water absorption and proton conductivity of sulfonated acrylamide copolymerscitations
- 2002Ionic conductivity in physical networks of polyethylene-polyether-polyethylene triblock copolymerscitations
- 2001Phase behavior and ion conductivity of electrolytes based on aggregating combshaped polyetherscitations
- 2000Preparation and characterisation of aggregating comblike poly(propylene oxide)citations
- 2000Synthesis of novel aggregating comb-shaped polyethers for use as polymer electrolytescitations
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article
Biobased aliphatic polyesters from a spirocyclic dicarboxylate monomer derived from levulinic acid
Abstract
Levulinic acid derived from lignocellulose is an important biobased building block chemical. Here, we report on the synthesis and polymerization of a rigid spirocyclic diester monomer to produce polyesters and copolyesters. The monomer was prepared via a one-step acid catalyzed ketalization involving ethyl levulinate and pentaerythritol by employing a straightforward, solvent-free, and readily scalable method which required no chromatographic purification. Still, careful removal of traces of water from the spirodiester prior to the polycondensations proved crucial to avoid side reactions. A preliminary life cycle assessment (LCA) in terms of greenhouse gas (GHG) emissions indicated that the corresponding spirodiacid tended to be environmentally favourable, producing less CO<sub>2</sub> emission than e.g., biobased succinic acid and adipic acid. A series of aliphatic polyesters with reasonably high molecular weights was subsequently prepared in melt and modified melt polycondensations of the spiro-diester with 1,4-butanediol, 1,6-hexanediol, neopentyl glycol and 1,4-cyclohexanedimethanol, respectively. The resulting fully amorphous polyesters showed glass transition temperatures (<i>T</i><sub>g</sub>s) in the range 12-49 °C and thermal<br/>stability up to 300 °C. Hot-pressed films of the polyesters based on neopentyl glycol and 1,4-cyclohexanedimethanol were transparent and mechanically strong, and dynamic melt rheology showed stable shear moduli over time to indicate good processability. In addition, the spiro-diester monomer was employed in copolycondensations with diethyl adipate and 1,4-butanediol and demonstrated good reactivity and stability. Hence, the results of the present study indicate that the spiro-diester based on levulinic acid is an effective monomer for the preparation of aliphatic polyesters and other condensation polymers.<br/>