The structure of amylose gels
The structure of amylose gels
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DOI：
10.1088/0953-8984/6/2/003
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发表时间：
1994-01
期刊：
影响因子：
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通讯作者：
A. Vallêra;M. M. Cruz-M.;S. Ring;F. Boué
中科院分区：
文献类型：
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作者：
A. Vallêra;M. M. Cruz-M.;S. Ring;F. Boué
小角中子散射 (SANS) 已用于研究浓度在 2% 至 8%（按重量计）范围内的直链淀粉溶液在水中的凝胶化。结果清楚地表明富含聚合物和富含水的区域之间存在相分离，并组织成自相似结构，其特征分形维数为 2.6，与聚合物浓度无关。富含聚合物的聚集单元的尺寸和组成也显示出对聚合物浓度的依赖性很小。对凝胶化过程的研究得出这样的结论：本实验中探讨的凝胶的精细结构与冷却速率无关。
Small-angle neutron scattering (SANS) has been used to study the gelation of amylose solutions in water in the range of concentrations of 2 to 8% by weight. The results clearly indicate a phase separation between polymer-rich and water-rich regions and an organization into a self-similar structure, with a characteristic fractal dimension of 2.6, independent of polymer concentration. The size and composition of polymer-rich aggregating units also show little dependence on the polymer concentration. A study of the gelation process leads to the conclusion that the fine structure of the gels, probed in this experiment, is independent of the cooling rate.