The miscibility of five chitosan/tertiary amide polymer blend systems was studied. Based on the optical transparency of the blend and the existence of a single glass transition temperature, chitosan was found to be miscible with poly(N-vinyl-2-pyrrolidone), poly(N-methyl-N-vinylacetamide), poly(N,N-dimethylacrylamide), poly(2-methyl-2-oxazoline), and poly(2-ethyl-2-oxazoline). Fourier transform infrared spectroscopy showed the existence of hydrogen-bonding interactions between chitosan and the tertiary amide polymers.
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Fang et al. (2000) studied this question.
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