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arXiv 2302.13669cond-mat.softcond-mat.mtrl-scicond-mat.stat-mechphysics.chem-ph
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星型Polymer溶液中渗透状态方程的普适性

Universality of Osmotic Equation of State in Star Polymer Solutions

Takashi Yasuda, Masanobu Ino, Takamasa Sakai, Naoyuki Sakumichi

摘要:

我们实验测量线性聚合物和三,四,和八臂星型聚合物在良好的溶剂通过膜渗透压。这些结果表明,在星形聚合物溶液的渗透状态方程是普遍描述相同的标度函数,描述线性聚合物溶液。这种普遍性是通过取消增加重叠浓度和降低渗透压,由于增加臂数。我们进一步澄清的摩尔质量和臂数的依赖性的回转半径和互穿因子,确保在星形聚合物解决方案的普遍性。

英文摘要:

We experimentally measure the osmotic pressures of linear polymers and three-, four-, and eight-arm star polymers in a good solvent via membrane osmometry. These results reveal that the osmotic equations of state in the star polymer solutions are universally described by the same scaling function that describes linear polymer solutions. This universality is achieved by canceling increasing overlap concentrations and decreasing osmotic pressure, owing to the increased arm number. We further clarify the molar mass and arm number dependencies of the gyration radius and interpenetration factor, ensuring universality in star polymer solutions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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