Royal Society of Chemistry, Chemical Communications, 70(48), p. 8778, 2012
DOI: 10.1039/c2cc34337a
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The imine-bond formation on chitosan backbones occurs with very low yields in aqueous solutions and is significantly improved in hydrogels or in solid state films. The dynamic exchanges of imino-R groups and colour transfer can occur at the interfaces between various hydrogels and solid state films.