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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 47, Iss. 10 — Oct. 1, 1993
  • pp: 1693–1695

Characterization of Aspen Explosion Pulp by CP/MAS 13C NMR

X. Hua, G. Capretti, B. Focher, A. Marzetti, B. V. Kokta, and S. Kaliaguine

Applied Spectroscopy, Vol. 47, Issue 10, pp. 1693-1695 (1993)


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Abstract

Steam explosion pulps were studied by means of CP/MAS 13C NMR spectroscopy. The steam explosion treatment of aspen chips with Na2SO3 and Na2SO3 + NaOH led to a loss in hemicellulose and an increase in cellulose crystallinity. No lignin dissolution occurred during explosion pulping, although the lignin structure might have changed to a certain extent. For comparison purposes, conventional CMP and CTMP pulps were also analyzed. The conventional treatments revealed less modification in the spectrum with regard to original wood samples.

Citation
X. Hua, G. Capretti, B. Focher, A. Marzetti, B. V. Kokta, and S. Kaliaguine, "Characterization of Aspen Explosion Pulp by CP/MAS 13C NMR," Appl. Spectrosc. 47, 1693-1695 (1993)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-47-10-1693


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