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arXiv 0711.3750cond-mat.softcond-mat.dis-nn
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相关无序中的星形聚合物

Star polymers in correlated disorder

V. Blavats'ka, C. von Ferber, Yu. Holovatch

摘要:

我们分析了多孔介质(结构无序)对浸没在良溶剂中的星形聚合物的配分函数标度的影响。我们表明,相应的标度指数的变化,如果无序是长程相关的,并计算在新的普适类的指数。一个值得注意的发现是,星型和链型聚合物的反应在质量上不同的方式存在的障碍:相应的标度指数增加链和减少的明星。我们讨论了这种差异的物理后果。

英文摘要:

We analyze the impact of a porous medium (structural disorder) on the scaling of the partition function of a star polymer immersed in a good solvent. We show that corresponding scaling exponents change if the disorder is long-range-correlated and calculate the exponents in the new universality class. A notable finding is that star and chain polymers react in qualitatively different manner on the presence of disorder: the corresponding scaling exponents increase for chains and decrease for stars. We discuss the physical consequences of this difference.

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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