Chitosan-N-poly(ethylene glycol) brush copolymers: Synthesis and adsorption on silica surface
2005 (English)In: European Polymer Journal, ISSN 0014-3057, E-ISSN 1873-1945, Vol. 41, no 11, 2653-2662 p.Article in journal (Refereed) Published
Chitosan-N-poly(ethylene glycol) brush copolymers with different degree of substitution (DS) were synthesized via reductive amination of chitosan by rnethoxy poly(ethylene glycol) (MPEG) aldehyde. Chitosan-N-MPEG copolymers were high-molecular-weight products with desirable DS; solubility and solution viscosity of those copolymers depended on the method of the synthesis of MPEG aldehyde and on DS. Synthesis of MPEG aldehyde by the use of TEMPO radical/BAIB was not suitable because of partial oxidation of methoxy groups of MPEG resulting in bifunctional PEG derivatives leading to cross-linking. Adsorption studies of chitosan-N-MPEG graft copolymers oil silica surface show that these polymers adsorb in highly hydrated layers.
Place, publisher, year, edition, pages
2005. Vol. 41, no 11, 2653-2662 p.
chitosan, poly(ethylene glycol), water-soluble, graft copolymer, reductive amination, adsorption, QCM-D, reflectometry, peg-grafted chitosan, derivatives, oxidation, acetaldehyde, aldehydes, alcohols, acid
IdentifiersURN: urn:nbn:se:kth:diva-15139DOI: 10.1016/j.eurpolymj.2005.05.021ISI: 000232848000014ScopusID: 2-s2.0-24344490787OAI: oai:DiVA.org:kth-15139DiVA: diva2:333180
QC 201005252010-08-052010-08-05Bibliographically approved