2D Assignment and quantitative analysis of cellulose and oxidized celluloses using solution-state NMR spectroscopy

Nypelö, Tiina, 1982 (author): Chalmers tekniska högskola,Chalmers University of Technology

Potthast, Antje (author): Universität für Bodenkultur,University of Natural Resources and Life Sciences

Rosenau, Thomas (author): Universität für Bodenkultur,University of Natural Resources and Life Sciences

Heikkinen, Harri (author)

Maaheimo, Hannu (author): Teknologian Tutkimuskeskus (VTT),Technical Research Centre of Finland (VTT)

(creator_code:org_t)

2020-07-27
2020
English.
In: Cellulose. - : Springer Science and Business Media LLC. - 0969-0239 .- 1572-882X. ; 27:14, s. 7929-7953

Related links:: https://research.cha... (primary) (free); show more...; https://link.springe...; https://research.cha...; https://doi.org/10.1...; https://research.cha...; show less...

Abstract Subject headings

The limited access to fast and facile general analytical methods for cellulosic and/or biocomposite materials currently stands as one of the main barriers for the progress of these disciplines. To that end, a diverse set of narrow analytical techniques are typically employed that often are time-consuming, costly, and/or not necessarily available on a daily basis for practitioners. Herein, we rigorously demonstrate a general quantitative NMR spectroscopic method for structural determination of crystalline cellulose samples. Our method relies on the use of a readily accessible ionic liquid electrolyte, tetrabutylphosphonium acetate ([P-4444][OAc]):DMSO-d(6), for the direct dissolution of biopolymeric samples. We utilize a series of model compounds and apply now classical (nitroxyl-radical and periodate) oxidation reactions to cellulose samples, to allow for accurate resonance assignment, using 2D NMR. Quantitative heteronuclear single quantum correlation (HSQC) was applied in the analysis of key samples to assess its applicability as a high-resolution technique for following cellulose surface modification. Quantitation using HSQC was possible, but only after applying T(2)correction to integral values. The comprehensive signal assignment of the diverse set of cellulosic species in this study constitutes a blueprint for the direct quantitative structural elucidation of crystalline lignocellulosic, in general, readily available solution-state NMR spectroscopy. [GRAPHICS] .

NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)

By the author/editor: Koso, Tetyana; del Cerro, Danie ...; Heikkinen, Sami; Nypelö, Tiina, 1 ...; Buffiere, Jean; Perea-Buceta, Je ...; show more...; Potthast, Antje; Rosenau, Thomas; Heikkinen, Harri; Maaheimo, Hannu; Isogai, Akira; Kilpelainen, Ilk ...; King, Alistair W ...; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Analytical Chemi ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Chemical Enginee ...; and Polymer Technolo ...

NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Other Chemistry ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.