CHARACTERIZATION OF ASPEN EXPLOSION PULP BY CP MAS C-13 NMR

被引：6
|
作者：
HUA, X
CAPRETTI, G
FOCHER, B
MARZETTI, A
KOKTA, BV
KALIAGUINE, S
机构：
[1] STN SPERIMENTALE CELLULOSA CARTA & FIBRE TESSILI VEGETALI & ARTIFICIALI,MILAN,ITALY
[2] UNIV QUEBEC,TROIS RIVIERES GA9 5H7,QUEBEC,CANADA
来源：
APPLIED SPECTROSCOPY | 1993年 / 47卷 / 10期
关键词：
NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; STEAM EXPLOSION PULP;
D O I：
10.1366/0003702934334822
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Steam explosion pulps were studied by means of CP/MAS C-13 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.
引用
收藏
页码：1693 / 1695
页数：3
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