流变学
差示扫描量热法
水溶液
材料科学
剪切减薄
光学显微镜
化学工程
偏振光显微镜
葡甘露聚糖
复合材料
高分子化学
扫描电子显微镜
化学
热力学
有机化学
光学
物理
工程类
生物化学
作者
Vipul Davé,Mihir Sheth,Stephen P. McCarthy,Jo Ann Ratto,David L. Kaplan
出处
期刊:Polymer
[Elsevier]
日期:1998-03-01
卷期号:39 (5): 1139-1148
被引量:95
标识
DOI:10.1016/s0032-3861(97)00255-3
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.
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