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Synthesis of full interpenetrating hemicellulose hydrogel networks
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0001-5910-1226
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0002-1631-1781
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
2017 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 170, 254-263 p.Article in journal (Refereed) Published
Abstract [en]

Two methods with different cross-linking mechanisms for designing hemicellulose-based full interpenetrating polymer networks (IPNs) were developed through the sequential synthesis of full IPNs from O-acetyl-galactoglucomannan (AcGGM) utilizing free-radical polymerization and a thiol-ene click reaction. A faster swelling rate was observed for all IPN formulations compared with the single-network gels. The highly porous structure of the IPNs with small interconnected pores was verified using scanning electron microscopy. A rheological analysis revealed that the AcGGM IPNs fabricated by the free-radical polymerization of acrylamide and N-N'-methylenebisacrylamide (cross-linker) had shear storage modulus (G') values approximately 5 and 2.5 times higher than that of the corresponding precursor single networks of AcGGM. IPNs achieved through thiol-ene reactions between thiolated AcGGM and polyethylene glycol diacrylate had G' values 35-40 times higher than the single-network reference hydrogels.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 170, 254-263 p.
Keyword [en]
Interpenetrating polymer networks, Hemicellulose, Shear modulus, Hydrogel
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-210451DOI: 10.1016/j.carbpol.2017.04.091ISI: 000402942900030PubMedID: 28521995Scopus ID: 2-s2.0-85018348714OAI: oai:DiVA.org:kth-210451DiVA: diva2:1120602
Funder
Swedish Research Council Formas, 2011-1542
Note

QC 20170706

Available from: 2017-07-06 Created: 2017-07-06 Last updated: 2017-07-06Bibliographically approved

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Maleki, LalehEdlund, UlricaAlbertsson, Ann-Christine

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