Add time:08/18/2019         Source:sciencedirect.com

АbstractThe modification of chitosan (Ch) with a surfactant hexadecyl-oligo-oxyethylene hemisuccinate (HOS) as well as properties of modified chitosan succinate (ChS) have been studied. Modification of ChS was made with the use of surfactants of different nature: anionic surfactant - sodium dodecyl sulfate, cationic surfactant - dodecyl pyridinium chloride and nonionic surfactant - oxyethylatedcetyl alcohol. The hydrophobically modified Ch (HCh) and ChS derivatives have high surface activity and stabilize oil-in-water emulsions very effectively. It was shown that the hydrophobization of ChS via interaction between ChS and surfactants differs significantly from hydrophobic modification of Ch by anionic surfactants. It is proposed that such difference should be connected with polyampholyte properties of ChS.

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