Many researches have studied the viscoelasticity of cellulose/ionic liquid solutions through the conventional scaling rules which assume the monodisperse polymer. However, they are not suitable for cellulose since natural polymers such as cellulose have molecular weight distribution. In this paper, dynamic rheological behaviors of 1-ethyl-3-methyl imidazolium acetate solutions dissolving three kinds of celluloses were measured in a large range of concentrations from the dilute regime to the entangled semidilute regime at 25°C. We compared the viscosity-fitting scaling (Chen et al., 2011) and the phenomenological scaling to replace the conventional scaling. Two scaling methods were applied to the linear viscoelasticity of the cellulose solutions with different molecular weights and molecular weight distributions. The results of each scaling were compared by the superposition of master curves obtained from each scaling. The effects of molecular weight distribution were observed by the dependence of the scaling factors on concentration and molecular weight of cellulose.

中文翻译：

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纤维素1-乙基-3-甲基咪唑乙酸纤维素溶液线性粘弹性的尺度分析

许多研究已经通过假定单分散聚合物的常规缩放规则研究了纤维素/离子液体溶液的粘弹性。然而，它们不适合纤维素，因为诸如纤维素的天然聚合物具有分子量分布。本文在25°C下从稀溶液到纠缠半稀溶液的较大浓度范围内测量了溶解了三种纤维素的1-乙基-3-甲基咪唑乙酸盐溶液的动态流变行为。我们比较了粘度拟合结垢（Chen等。（2011年）和现象学标度取代了常规标度。两种定标方法应用于具有不同分子量和分子量分布的纤维素溶液的线性粘弹性。每个缩放的结果通过从每个缩放获得的主曲线的叠加进行比较。通过比例因子对纤维素的浓度和分子量的依赖性来观察分子量分布的影响。