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 language | English |
|---|---|
| Pages (from-to) | 945-948 |
| Number of pages | 4 |
| Journal | Journal of Thermal Analysis and Calorimetry |
| Volume | 97 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Sept 2009 |
Keywords
- Cellulose
- DSC
- Graft copolymers
- Hydrogel
- Lyocell
- N-isopropylacrylamide
- TG
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