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Thermal degradation of lyocell/poly-N-isopropylacrylamide graft copolymers gels

  • F. Carrillo
  • , B. Defays
  • , X. Colom
  • , J. J. Suñol
  • , M. López-Mesas
  • Polytechnic University of Catalonia
  • Autonomous University of Barcelona

Research output: Contribution to journalScientific articlepeer-review

8 Citations (Scopus)

Abstract

In the present work Lyocell fibers were subjected to graft copolymerization of poly-N-isopropylacrylamide (pNIPAAm) thermosensitive polymer. The thermal degradation and stability of lyocell/pNIPAAm copolymers gels were characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TG). pNIPAAm/lyocell copolymers are thermally stable and more resistant to temperature than lyocell fibres. Thermal characterization was analyzed as a function of percentage by mass of the pNIPAAm grafted. It has been shown that for pNIPAAm/lyocell copolymers, degradation occurs at higher temperature when increasing the degree of grafting.

Original languageEnglish
Pages (from-to)945-948
Number of pages4
JournalJournal of Thermal Analysis and Calorimetry
Volume97
Issue number3
DOIs
Publication statusPublished - Sept 2009

Keywords

  • Cellulose
  • DSC
  • Graft copolymers
  • Hydrogel
  • Lyocell
  • N-isopropylacrylamide
  • TG

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