Viscosity of Polyelectrolytes: Influence of Counterion and Solvent Type,ACS Macro Letters

当前位置： X-MOL 学术 › ACS Macro Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Viscosity of Polyelectrolytes: Influence of Counterion and Solvent Type
ACS Macro Letters ( IF 5.1 ) Pub Date : 2024-08-05 , DOI: 10.1021/acsmacrolett.4c00055
Anish Gulati ₁ , Carlos G Lopez _{1,

2}

Affiliation

We study the viscosity of polystyrenesulfonate with sodium and tetrabutylammonium counterions in aqueous and organic solvent media. We find that at low concentrations the Fuoss law (η_sp ∼ c^1/2) is approximately obeyed, but at higher concentrations, an exponential dependence on the polymer volume fraction sets in. These findings are discussed in terms of Fujita’s free volume theory.

中文翻译：

聚电解质的粘度：抗衡离子和溶剂类型的影响

我们研究了具有钠和四丁基铵抗衡离子的聚苯乙烯磺酸盐在水性和有机溶剂介质中的粘度。我们发现，在低浓度下，近似遵守 Fuoss 定律 (η _sp ∼ c ^1/2 )，但在较高浓度下，聚合物体积分数呈指数依赖性。这些发现根据 Fujita 的自由体积理论进行了讨论。

更新日期：2024-08-05

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南