Evaluation of hydration in a water-soluble polymer by terahertz spectroscopy
Evaluation of hydration in a water-soluble polymer by terahertz spectroscopy
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DOI：
10.1063/1.4942411
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发表时间：
2016-02
影响因子：
4
通讯作者：
S. Kawabe;M. Seki;H. Tabata
中科院分区：
文献类型：
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作者：
S. Kawabe;M. Seki;H. Tabata
在这项研究中，我们已经评估了水溶性聚合物的水合性能的太赫兹光谱。特别是，我们专注于聚乙烯吡咯烷酮，它作为一种生物材料具有广泛的应用潜力。通过太赫兹光谱得到的样品的介电损耗被发现强烈依赖于聚合物的分子量和溶液的密度。我们发现，每个单体的水合数取决于聚合物的分子量。水化数受溶液中聚合物构象的影响。
In this study, we have evaluated the hydration properties of water-soluble polymers by terahertz spectroscopy. In particular, we focused on polyvinylpyrrolidone which has potential use for a wide range of applications as a biomaterial. The dielectric loss of samples obtained by the terahertz spectroscopy was found to strongly depend on the molecular weight of the polymers and the density of the solution. We revealed that the hydration number per monomer depends on the molecular weight of the polymer. It is also deduced that the hydration number is affected by the conformation of the polymer in the solution.