Hydrophobically Functionalized Chitosan Particles

摘要: Particles of chitosan have a very polar surface, and thus they are easily wetted by water also dissolve in acidic media. The hydroxyl amino groups offer high potential for grafting reactions. Aldehydes carbonic acid derivatives were covalently grafted, preferably onto the groups. reactions carried out solution as homogeneous phase well on particle surfaces heterogeneous Covalently bonded alkyl chains impart molecules with hydrophobic properties. We employed different methods such NMR, XPS, elemental analysis FT-IR spectroscopy to study estimate degree functionalization. wetting behavior particles was investigated modified Wilhelmy technique, where an adhesive tape completely coated dipped water. Some samples having functionalization showed super-hydrophobic surface observed effect results ...