Browsing by Author "Funk, Lutz"

Now showing items 1-4 of 4

    • Hydrolytic and enzymatic degradation of biobased poly(4-hydroxybutyrate) films. Selective etching of spherulites 

      Keridou, Ina; Franco García, María Lourdes; Valle Mendoza, Luis Javier del; Martínez, Juan Carlos; Funk, Lutz; Turon Dols, Pau; Puiggalí Bellalta, Jordi (2021-01)
      Article
      Restricted access - publisher's policy
      Hydrolytic degradation of poly(4-hydroxybutyrate) (P4HB) films has been studied considering media of different pH values (i.e., 3, 7 and 10) and temperatures (i.e., 37 and 55 °C). Enzymatic degradation has also been evaluated ...

    • Isothermal crystallization kinetics of poly(4-hydroxybutyrate) biopolymer 

      Keridou, Ina; Valle Mendoza, Luis Javier del; Funk, Lutz; Turon, Pau; Yousef, Ibraheem; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2019-08-01)
      Article
      Open Access
      Thermal properties and crystallization kinetics of poly(4-hydroxybutyrate) (P4HB) have been studied. The polymer shows the typical complex melting behavior associated to different lamellar populations. Annealing processes ...

    • Microstructural changes during degradation of biobased poly(4-hydroxybutyrate) sutures 

      Keridou, Ina; Franco García, María Lourdes; Valle Mendoza, Luis Javier del; Funk, Lutz; Turon, Pau; Puiggalí Bellalta, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2020-09-01)
      Article
      Open Access
      Fibers of poly(4-hydroxybutyrate) (P4HB) have been submitted to both hydrolytic and enzymatic degradation media in order to generate samples with different types and degrees of chain breakage. Random chain hydrolysis is ...

    • Non-isothermal crystallization kinetics of poly(4-hydroxybutyrate) biopolymer 

      Keridou, Ina; Valle Mendoza, Luis Javier del; Funk, Lutz; Turon, Pau; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2019-08-05)
      Article
      Open Access
      The non-isothermal crystallization of the biodegradable poly(4-hydroxybutyrate) (P4HB) has been studied by means of differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). In the first case, Avrami, ...