Permeability studies in chitosan membranes. Effects of crosslinking and poly(ethylene oxide) addition

Chitosan: The Most Valuable Derivative of Chitin

“…In the case of chitosan, the amino groups of the polymer may allow the establishment of different types of interactions with both non-ionic and ionic drugs [123] and also provide pH-sensitive systems, which swell in gastric conditions allowing site-specific release [124]. Several cross-linking reagents have been used for crosslinking of chitosan, such as glutaraldehyde, genipin, ethylene glycol, diglycidyl ether and diisocyanate [125][126][127][128][129].…”

Plasticized chitosan–PVA blend polymer electrolyte based proton battery

“…It is a natural polymer, which contains ␤-(1 → 4) linked 2-amino-2-deoxy-d-glucopyranose repeat units which is obtained by deacetylation of chitin [7,8]. In an aqueous acid medium, the amine group of chitosan is protonated, the polymer behaves like a cationic polyelectrolyte.…”

Dielectric Relaxation and Ionic Conductivity of a Chitosan/Poly(ethylene oxide) Blend Doped with Potassium and Calcium Cations

“…From this point of view, a research interest has been placed on blending of CS with poly(ethylene oxide) (PEO). [1][2][3][4][5] CS/PEO blends exhibit the improvement in thermal, mechanical and electrical properties because of the specific interactions between the amine and hydroxyl groups of CS and the ether groups of PEO [1][2][3][4] , as naturally expected from their chemical structures shown later in Fig.1. The CS/PEO blends have a potential applicability as a matrix in the solid polymer electrolyte [6][7][8] , because both CS and PEO can dissolve salts to exhibit ionic conductivity.…”