Methylation analysis of cellulose sulphates

被引：16

作者：

Gohdes, M

Mischnick, P

Wagenknecht, W

机构：

[1] Univ Hamburg, Inst Organ Chem, D-20146 Hamburg, Germany

[2] Fraunhofer Inst Angew Polymerforsch, D-14513 Teltow, Germany

来源：

CARBOHYDRATE POLYMERS | 1997年 / 33卷 / 2-3期

关键词：

D O I：

10.1016/S0144-8617(97)00020-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Methylation analysis was applied to cellulose sulphates (CS). The degree of substitution (ds) ranged from 0.52 to 1.37. Problems arose under the basic conditions of the methylation step. Cellulose sulphates with a high degree of substitution at C-2 showed significant loss of sulphate; samples with predominantly C-6 substitution gave good results in agreement with C-13 NMR data and elemental analysis. In this paper reasons for this behaviour and the development of an appropriate procedure are presented. (C) 1997 Elsevier Science Ltd.

引用

收藏

页码：163 / 168

页数：6

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