Green Semi-IPN Hydrogels by Direct Utilization of Crude Wood Hydrolysates
2016 (English)In: ACS SUSTAINABLE CHEMISTRY & ENGINEERING, ISSN 2168-0485, Vol. 4, no 8, 4370-4377 p.Article in journal (Refereed) Published
Crude and unmodified acetylated galactoglucomannan containing wood hydrolysate (WH) was directly incorporated into a semi-interpenetrating network (semi-IPN) composed of up to 60% renewable polymers. Semi-IPNs were produced by a facile and green synthetic pathway through cross-linking modified carboxymethylcellulose in the presence of at least 30%(w/w) WH, via free radical copolymerization with acrylic acid and N,N'-methylenebis(acrylamide). FTIR verified the presence of WH interlaced with CMC in the semi-IPN, and the highly porous microscopic structure of the networks was confirmed by SEM. The gelation process of these networks was monitored in situ, and their individual "gel point" (the G'-G '' crossover) was determined by in situ rheological measurements. Semi-IPN hydrogels ratios (Q = 20-225) were obtained within 2.8-20 min of a cross-linking reaction.
Place, publisher, year, edition, pages
American Chemical Society (ACS), 2016. Vol. 4, no 8, 4370-4377 p.
Interpenetrating network, Hemicellulose, Biomass, Wood hydrolysate, Hydrogel
IdentifiersURN: urn:nbn:se:kth:diva-192739DOI: 10.1021/acssuschemeng.6b00938ISI: 000380869800036ScopusID: 2-s2.0-84979974282OAI: oai:DiVA.org:kth-192739DiVA: diva2:974458
QC 201609262016-09-262016-09-202016-09-26Bibliographically approved