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Synthesis of highly swellable hydrogels of water-soluble carboxymethyl chitosan and poly(ethylene glycol)
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0002-1631-1781
2017 (English)In: Polymer international, ISSN 0959-8103, E-ISSN 1097-0126, Vol. 66, no 11, 1624-1632 p.Article in journal (Refereed) Published
Abstract [en]

Highly swellable hydrogels were produced by crosslinking of high molecular weight carboxymethylated chitosan (CmCHT) with poly(ethylene glycol) (PEG) oligomers. The hydrogel swelling capacity could be controlled via the crosslinking density and ranged from 900% to 5600%. The hydrogels showed good homogeneity with a high interconnected porosity in the swollen state and with nanodomains rich in CmCHT and others rich in PEG diglycidyl ether. Oscillatory frequency sweep analysis showed a storage modulus of 27kPa for the hydrogel with the highest crosslinking density, which together with the exhibited enzyme degradability with lysozyme at 59days indicate that these hydrogels have potential use in delivery systems or soft tissue regeneration. 

Place, publisher, year, edition, pages
WILEY , 2017. Vol. 66, no 11, 1624-1632 p.
Keyword [en]
carboxymethyl chitosan, poly(ethylene glycol) diglycidyl ether, swellable hydrogels, thermal analysis, rheological properties, degradation, citotoxicity assay
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-215776DOI: 10.1002/pi.5424ISI: 000412166000025Scopus ID: 2-s2.0-85030480744OAI: oai:DiVA.org:kth-215776DiVA: diva2:1151177
Note

QC 20171023

Available from: 2017-10-23 Created: 2017-10-23 Last updated: 2017-10-23Bibliographically approved

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Edlund, Ulrica

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