Phase diagram of a cellulose solvent:: N-methylmorpholine-N-oxide-water mixtures

被引：25

作者：

Biganska, O ^{[1
]}

Navard, P ^{[1
]}

机构：

[1] Ecole Mines Paris, UMR CNRS 7635, Ctr Mise Forme Mat, CEMEF, F-06904 Sophia Antipolis, France

来源：

POLYMER | 2003年 / 44卷 / 04期

关键词：

N-methylmorpholine-N-oxide (NMMO); hydrate; cellulose solvent;

D O I：

10.1016/S0032-3861(02)00902-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The phase diagram of the N-methylmorpholine-N-oxide-H2O mixtures from 0 to 100% has been determined. Three crystalline hydrates have been identified, the already known monohydrate, a dihydrate and a hydrate composed of 8 water molecules per NMMO. The melting temperature of the 8H(2)O-NMMO hydrate is -47degreesC with a melting enthalpy of about 80 J/g. The region between 25 and 55% of water does not show any crystallisation, but a glass transition around - 60 to - 100degrees C. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1035 / 1039

页数：5

共 6 条

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