Gel-sol-gel transition of kappa-carrageenan and methylcellulose binary systems studied by differential scanning calorimetry

被引：10
|
作者：
Iijima, Mika [1 ]
Hatakeyama, Tatsuko [2 ]
Hatakeyama, Hyoe [2 ]
机构：
[1] Nagasaki Univ, Fac Educ, Nagasaki 8528521, Japan
[2] Lignocell Res, Fukui 9103558, Japan
来源：
THERMOCHIMICA ACTA | 2014年 / 596卷
关键词：
kappa-Carrageenan; Methylcellulose; Binary system; Hydrogel; DSC; KONJAC-GLUCOMANNAN; CAROB GALACTOMANNAN; GELATION; DSC; MIXTURES; WATER; CARRAGEENAN/GALACTOMANNAN; DIFFRACTION; SCATTERING; RHEOLOGY;
D O I：
10.1016/j.tca.2014.09.021
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Kappa-carrageenan (kappa C) was mixed with methylcellulose (MC) with various mixing ratios. Phase transition behaviour of the above mixed solutions with 1 and 2% concentration was investigated by visual observation and differential scanning calorimetry (DSC). Three regimes showing unique transition behaviour were observed: Regime I which is an MC rich region where only sol-gel transition is found, Regime II an intermediate mixing range of kappa C and MC where sinusoidal change of gel-sol-gel transition was observed, and Regime III a kappa C rich region where only gel-sol transition was detected. A phase diagram of kappa C/MC binary systems was established based on transition temperatures obtained by visual observation and DSC. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：63 / 69
页数：7
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