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Stability and aging of solubilized dialdehyde cellulose

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dc.title Stability and aging of solubilized dialdehyde cellulose en
dc.contributor.author Münster, Lukáš
dc.contributor.author Vícha, Jan
dc.contributor.author Klofáč, Jiří
dc.contributor.author Masař, Milan
dc.contributor.author Kucharczyk, Pavel
dc.contributor.author Kuřitka, Ivo
dc.relation.ispartof Cellulose
dc.identifier.issn 0969-0239 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2017
utb.relation.volume 24
utb.relation.issue 7
dc.citation.spage 2753
dc.citation.epage 2766
dc.type article
dc.language.iso en
dc.publisher Springer Netherlands
dc.identifier.doi 10.1007/s10570-017-1314-x
dc.relation.uri https://link.springer.com/article/10.1007/s10570-017-1314-x
dc.subject Periodate oxidation en
dc.subject Solubilization en
dc.subject Dialdehyde cellulose en
dc.subject DAC en
dc.subject Aging en
dc.subject NMR en
dc.description.abstract Derivatization of alpha cellulose by periodate oxidation is an useful method for production of dialdehyde cellulose (DAC). Conversion of the 2,3-hydroxyl groups to a pair of aldehyde groups along with cleavage of the C2–C3 bond of anhydroglucose unit reduces crystallinity of initial material, leaving DAC soluble in water under mild conditions. Solubilization in hot water is necessary to obtain product in solution. The first part of our work confirmed that solubilization causes severe degradation of the molecular weight of the polymer. However, the chemistry and processes within these solutions are currently poorly understood. In the main part of the study, products of periodate oxidation were identified in acidic DAC solutions by NMR spectroscopy for the first time. Subsequent investigation of the acidic DAC solution's aging demonstrated that the low pH of the DAC solution considerably slows the degradation processes, namely the decrease of reactive aldehyde group content when compared to previous studies. Large increase in the molecular weight, observed after 14 days of aging, was explained by formation of intermolecular hemiacetals. Our results demonstrate that pH-stabilized aqueous DAC solutions remained active (e.g. applicable for cross-linking reactions) even several weeks after preparation, therefore reducing the need to prepare a fresh solution each time. © 2017, Springer Science+Business Media Dordrecht. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1007418
utb.identifier.obdid 43876562
utb.identifier.scopus 2-s2.0-85018789721
utb.identifier.wok 000402697200007
utb.identifier.coden CELLE
utb.source j-scopus
dc.date.accessioned 2017-09-08T12:14:54Z
dc.date.available 2017-09-08T12:14:54Z
dc.description.sponsorship 16-05961S, GACR, Grantová Agentura České Republiky; 16-05961S, GAČR, Grantová Agentura České Republiky; IGA/CPS/2015/005, UTB, Univerzita Tomáše Bati ve Zlíně; LM2011020, MŠMT, Ministerstvo Školství, Mládeže a Tělovýchovy; LO1504, MŠMT, Ministerstvo Školství, Mládeže a Tělovýchovy
dc.description.sponsorship Ministry of Education, Youth and Sports of the Czech Republic-Program NPU I [LO1504]; Czech Science Foundation [16-05961S]; TBU in Zlin [IGA/CPS/2015/005]; Central European Institute of Technology (CEITEC)-open access project [LM2011020]; Ministry of Education, Youth and Sports of the Czech Republic
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Münster, Lukáš
utb.contributor.internalauthor Vícha, Jan
utb.contributor.internalauthor Klofáč, Jiří
utb.contributor.internalauthor Masař, Milan
utb.contributor.internalauthor Kucharczyk, Pavel
utb.contributor.internalauthor Kuřitka, Ivo
utb.scopus.affiliation Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, tr. Tomase Bati 5678, Zlín, Czech Republic
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