CELLULOSE ORGANIC SOLUTIONS - NUCLEAR MAGNETIC-RESONANCE INVESTIGATION

被引：114

作者：

GAGNAIRE, D ^{[1
]}

MANCIER, D ^{[1
]}

VINCENDON, M ^{[1
]}

机构：

[1] UNIV SCI & MED GRENOBLE,CEN,DEPT RECH FONDAMENTALE CHIM ORGAN PHYS,F-38041 GRENOBLE,FRANCE

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1980年 / 18卷 / 01期

关键词：

CELLULOSIC DERIVATIVES - MAGNETIC RESONANCE - SOLUTIONS - Spectroscopic Analysis - SOLVENTS - Chemistry;

D O I：

10.1002/pol.1980.170180102

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Four solvents of cellulose have been studied by using **1**3C-NMR spectroscopy. All these solvents, N-methyl morpholine-N-oxide, methylamine, hydrazine, and paraformaldehyde (PF), contained dimethyl sulfoxide (DMSO) as a cosolvent. Oligomers of cellulose of DP equals 10 soluble in hot DMSO have been used as model compounds. **1**3C chemical shifts and line shapes show that three of the mentioned solvents are ″true solvents″ of cellulose. Determination of T//1 for the different carbon atoms of the solvent DMSO-N-methyl morpholine-N-oxide with and without cellulose shows a large reduction of T//1 for N-methyl morpholine-N-oxide molecule. This denotes a slower molecular motion of this molecule and a preferential interaction with the cellulose macromolecule. 27 refs.

引用

页码：13 / 25

页数：13