Browsing by Author "Weder, Christoph"

Now showing items 1-17 of 17

    • Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes 

      Kamtsikakis, Aristotelis; Baales, Johanna; Zeisler-Diehl, Viktoria; Vanhecke, Dimitri; Zoppe, Justin Orazio; Schreiber, Lukas; Weder, Christoph (2021-12)
      Article
      Open Access
      Most of the aerial organs of vascular plants are covered by a protective layer known as the cuticle, the main purpose of which is to limit transpirational water loss. Cuticles consist of an amphiphilic polyester matrix, ...

    • Bio-inspired, Self-toughening polymers enabled by plasticizer-releasing microcapsules 

      Meesorn, Worarin; Calvino, Céline; Natterodt, Jens; Zoppe, Justin Orazio; Weder, Christoph (2019-04)
      Article
      Open Access
      A new concept for the design of self-toughening thermoplastic polymers is presented. The approach involves the incorporation of plasticizer-filled microcapsules (MCs) in an intrinsically rigid and brittle matrix polymer. ...

    • Cellulose nanocrystals with tethered polymer chains: chemically patchy versus uniform decoration 

      Zoppe, Justin Orazio; Dupire, Alix; Lachat, Theo; Lemal, Philipp; Rodriguez Lorenzo, Laura; Petri-Fink, Alke; Weder, Christoph; Klok, Harm-Anton (2017-09-19)
      Article
      Open Access
      The site-specific surface modification of colloidal substrates, yielding “patchy” nanoparticles, is a rapidly expanding area of research as a result of the new complex structural hierarchies that are becoming accessible ...

    • Cellulose nanocrystals: surface modification, applications and opportunities at interfaces 

      Natterodt, Jens; Petri-Fink, Alke; Weder, Christoph; Zoppe, Justin Orazio (2017-06-28)
      Article
      Open Access
      Cellulose nanocrystals (CNCs) are rod-like nano-scale particles that are widely available in nature and have recently gained great interest in both research and industry, due to their high strength, high crystallinity, ...

    • Cellulose nanofiber nanocomposite pervaporation membranes for ethanol recovery 

      Kamtsikakis, Aristotelis; McBride, Sara; Zoppe, Justin Orazio; Weder, Christoph (American Chemical Society, 2021-01-12)
      Article
      Open Access
      In spite of the growing interest to exploit nanocellulose in membranes for water purification, reverse osmosis, packaging, and other applications, examples of nanocellulose-containing membranes for pervaporation are rather ...

    • Challenges in synthesis and analysis of asymmetrically grafted cellulose nanocrystals via atom transfer radical polymerization 

      Delepierre, Gwendoline; Heise, Katja; Cranston, Emily; Kostiainen, Mauri A.; Weder, Christoph; Zoppe, Justin Orazio (2021-06-01)
      Article
      Open Access
      When cellulose nanocrystals (CNCs) are isolated from cellulose microfibrils, the parallel arrangement of the cellulose chains in the crystalline domains is retained so that all reducing end-groups (REGs) point to one ...

    • Chemical modification of reducing end-groups in cellulose nanocrystals 

      Heise, Katja; Delepierre, Gwendoline; King, Alistair W.T.; Kostiainen, Mauri A.; Zoppe, Justin Orazio; Weder, Christoph; Kontturi, Eero (2021-01-04)
      Article
      Open Access
      Native plant cellulose has an intrinsic supramolecular structure. Consequently, it can be isolated as nanocellulose species, which can be utilized as building blocks for renewable nanomaterials. The structure of cellulose ...

    • Functionally graded polyurethane/cellulose nanocrystal composites 

      Natterodt, Jens; Meesorn, Worarin; Zoppe, Justin Orazio; Weder, Christoph (2018-06)
      Article
      Open Access
      The preparation and investigation of functionally graded polymer nanocom-posites, which have a concentration gradient of cellulose nanocrystals (CNCs) along one direction, is reported here. As a test bed, a series of ...

    • Grafting polymers from cellulose nanocrystals: synthesis, properties, and applications 

      Wohlhauser, Sandra; Delepierre, Gwendoline; Labet, Marianne; Morandi, Gaëlle; Thielemans, Wim; Weder, Christoph; Zoppe, Justin Orazio (American Chemical Society (ACS), 2018-08-28)
      Article
      Open Access
      Over the past 10 years, the grafting of polymers from the surface of cellulose nanocrystals (CNCs) has gained substantial interest in both academia and industry due to the rapidly growing number of potential applications ...

    • Influence of the salt concentration on the properties of salt-free polyelectrolyte complex membranes 

      Saikaew, Rateeya; Meesorn, Worarin; Zoppe, Justin Orazio; Weder, Christoph; Dubas, Stephan (2019-09)
      Article
      Open Access
      Polyelectrolyte complexes (PECs) prepared by solution mixing of cationic poly(diallyldimethylammonium chloride) and anionic poly(sodium 4-styrene sulfonate) with various NaCl content are processed into films. Salt-free ...

    • Liquid crystalline properties of symmetric and asymmetric end-grafted cellulose nanocrystals 

      Delepierre, Gwendoline; Cranston, Emily; Weder, Christoph; Zoppe, Justin Orazio (2021-07-23)
      Article
      Open Access
      The hydrophilic polymer poly[2-(2-(2-methoxy ethoxy)ethoxy)ethylacrylate] (POEG3A) was grafted onto the reducing end-groups (REGs) of cellulose nanocrystal (CNC) allomorphs, and their liquid crystalline properties were ...

    • One-component nanocomposites based on polymer-grafted cellulose nanocrystals 

      Wohlhauser, Sandra; Kuhnt, Tobias; Meesorn, Worarin; Montero de Espinosa, Lucas; Zoppe, Justin Orazio; Weder, Christoph (American Chemical Society (ACS), 2020-02-11)
      Article
      Open Access
      Cellulose nanocrystals (CNCs) are widely used as reinforcing fillers in polymers due to their exceptionally high stiffness and strength and because the biological species from which they are isolated represent renewable ...

    • Patience is a virtue: self-assembly and physico-chemical properties of cellulose nanocrystal allomorphs 

      Delepierre, Gwendoline; Eyley, Samuel; Thielemans, Wim; Weder, Christoph; Cranston, Emily; Zoppe, Justin Orazio (2020)
      Article
      Restricted access - publisher's policy
      Cellulose nanocrystals (CNCs) are bio-based rod-like nanoparticles with a quickly expanding market. Despite the fact that a variety of production routes and starting cellulose sources are employed, all industrially produced ...

    • Polymer nanocomposites with cellulose nanocrystals made by co-precipitation 

      Natterodt, Jens; Shirole, Anuja; Sapkota, Janak; Zoppe, Justin Orazio; Weder, Christoph (Wiley, 2018-06-20)
      Article
      Open Access
      A premixing method to produce polymer nanocomposites with cellulose nanocrystals (CNCs) is reported. This method involves the dissolution and dispersion of a polymer and CNCs in an organic solvent, co-precipitation into ...

    • Self-assembly of asymmetric and symmetric end-grafted cellulose nanocrystals 

      Delepierre, Gwendoline; Traeger, Hanna; Adamcik, Jozef; Cranston, Emily D.; Weder, Christoph; Velasco, José Ignacio; Zoppe, Justin O. (Universitat Politècnica de Catalunya, 2022-06-16)
      Conference lecture
      Open Access

    • Stiffness-changing of polymer nanocomposites with cellulose nanocrystals and polymeric dispersant 

      Meesorn, Worarin; Zoppe, Justin Orazio; Weder, Christoph (2019-05)
      Article
      Open Access
      Bio-inspired, water-responsive, mechanically adaptive nanocomposites are reported based on cellulose nanocrystals (CNCs), poly(ethylene oxide-co-epichlorohydrin) (EO-EPI), and a small amount of poly(vinyl alcohol) (PVA), ...

    • Thermally switchable liquid crystals based on cellulose nanocrystals with patchy polymer grafts 

      Risteen, Bailey; Delepierre, Gwendoline; Srinivasarao, Mohan; Weder, Christoph; Russo, Paul; Reichmanis, Elsa; Zoppe, Justin Orazio (2018-11)
      Article
      Open Access
      A thermally “switchable” liquid-crystalline (LC) phase is observed in aqueous suspensions of cellulose nanocrystals (CNCs) featuring patchy grafts of the thermoresponsive polymer poly(N-isopropylacrylamide) (PNIPAM). ...