Mechanical properties of N,N,N-trimethylchitosan chloride films
AUTOR(ES)
Britto, Douglas de, Campana-Filho, Sérgio P., Assis, Odilio B.G. de
FONTE
Polímeros
DATA DE PUBLICAÇÃO
2005-06
RESUMO
Films of chitosan and N,N,N-trimethylchitosan were cast from aqueous solutions. Chitosan was dissolved in 1% acetic acid while deionized water was the solvent for N,N,N-trimethylchitosan chloride. The resulting films presented different mechanical behaviors as evaluated by DMTA. The film of chitosan exhibited an elastic-type behavior while that of N,N,N-trimethylchitosan was typically viscous. No glass transition temperatures were observed; however, a discrete thermal transition was detected at 25 °C in the case of the N,N,N-trimethylchitosan.
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