期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 97, 期 3, 页码 945-948出版社
SPRINGER
DOI: 10.1007/s10973-009-0090-8
关键词
Cellulose; DSC; Graft copolymers; Lyocell; Hydrogel; N-isopropylacrylamide; TG
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.
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