Liquid crystalline, rheological and thermal properties of konjac glucomannan

被引：108

作者：

Dave, V

Sheth, M

McCarthy, SP ^{[1
]}

Ratto, JA

Kaplan, DL

机构：

[1] Univ Massachusetts Lowell, Dept Plast Engn, Lowell, MA 01854 USA

[2] USA, Natick Res Dev & Engn Ctr, Div Biotechnol, Natick, MA 01760 USA

来源：

POLYMER | 1998年 / 39卷 / 05期

关键词：

liquid crystalline behaviour; konjac glucomannan; rheological properties;

D O I：

10.1016/S0032-3861(97)00255-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

Konjac glucomannan (KGM) exhibited liquid crystalline (LC) behaviour in aqueous solutions above 7% (w/w) concentrations as was determined by polarized optical microscopy and circular dichroism. The rheological properties of the concentrated LC solutions of KGM exhibited pseudoplastic behaviour. The fibrous extrudates retained a significant degree of flow-induced orientation as was determined by wide angle X-ray scattering, thereby indicating potential applications of KGM as fibres and films. Differential scanning calorimetry experiments showed that a significant degree of interaction occurred between KGM and water and that the KGM gels produced in our study cannot be classified as thermoreversible. (C) 1997 Elsevier Science Ltd. All rights reserved.

引用

页码：1139 / 1148

页数：10

共 45 条

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INTERMOLECULAR BINDING OF XANTHAN GUM AND CAROB GUM [J].