1 Ocak 2021 Dergi makalesi Açık Erişim

Candau, Nicolas; Stoclet, Gregory; Tahon, Jean-Francois; Demongeot, Adrien; Schouwink, Pascal; Yilgor, Emel; Yilgor, Iskender; Menceloglu, Yusuf Z.; Oguz, Oguzhan

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{
  "@context": "https://schema.org/", 
  "@id": 238490, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Univ Politecn Catalunya Barcelona Tech EEBE UPC, Ctr Catala Plast CCP, Barcelona 08019, Spain", 
      "name": "Candau, Nicolas"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Lille, CNRS, INRAE, Cent Lille,UMR 8207 UMET,Unite Mat & Transformat, F-59000 Lille, France", 
      "name": "Stoclet, Gregory"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Lille, CNRS, INRAE, Cent Lille,UMR 8207 UMET,Unite Mat & Transformat, F-59000 Lille, France", 
      "name": "Tahon, Jean-Francois"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Ecole Polytech Fed Lausanne EPFL, Lab Proc Adv Composites LPAC, Inst Mat IMX, CH-1015 Lausanne, Switzerland", 
      "name": "Demongeot, Adrien"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Ecole Polytech Fed Lausanne EPFL, Inst Sci & Ingn Chim ISIC, CH-1951 Sion, Switzerland", 
      "name": "Schouwink, Pascal"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Koc Univ, KUYTAM Surface Sci & Technol Ctr, Chem Dept, TR-34450 Istanbul, Turkey", 
      "name": "Yilgor, Emel"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Koc Univ, KUYTAM Surface Sci & Technol Ctr, Chem Dept, TR-34450 Istanbul, Turkey", 
      "name": "Yilgor, Iskender"
    }, 
    {
      "@type": "Person", 
      "name": "Menceloglu, Yusuf Z."
    }, 
    {
      "@type": "Person", 
      "name": "Oguz, Oguzhan"
    }
  ], 
  "datePublished": "2021-01-01", 
  "description": "There has been a considerable interest in developing stiff, strong, tough, and highly stretchable hydrogels in various fields of science and technology including biomedical and sensing applications. However, simultaneous optimization of stiffness, strength, toughness, and extensibility is a challenge for any material, and hydrogels are well-known to be mechanically weak materials. Here, we demonstrate that poly(ethylene oxide)-based dual stimuli-responsive semicrystalline poly(urethane-urea) (PU) copolymers with high hard segment contents (30 and 40%) can be utilized as stiff, strong, tough, and highly stretchable hydrogels with an elastic modulus (4-10 MPa) tens to hundreds of times higher than that of conventional hydrogels (0.01-0.1 MPa), strength (7-13 MPa) and toughness (53-74 m(-3) MJ. m(-3)) fairly comparable to those of the toughest hydrogels reported in the literature, and stretchability beyond 10 times their initial length (1000-1250%). In addition, the shape-memory program has been used to tune the room temperature stiffness and strength of the studied PU copolymers. Finally, the materials show fast shape recovery (less than 10 s) during both heat- and water-activated shape memory cycles, which can be adjusted by a simple modulation of the hard segment content and/or soft segment molecular weight. Our findings may be of interest in emerging biomedical and sensing applications.", 
  "headline": "Stiff, Strong, Tough, and Highly Stretchable Hydrogels Based on Dual Stimuli-Responsive Semicrystalline Poly(urethane-urea) Copolymers", 
  "identifier": 238490, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Stiff, Strong, Tough, and Highly Stretchable Hydrogels Based on Dual Stimuli-Responsive Semicrystalline Poly(urethane-urea) Copolymers", 
  "url": "https://aperta.ulakbim.gov.tr/record/238490"
}