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首页> 外文期刊>ACS Macro Letters >Minimal Surfaces on Unconcatenated Polymer Rings in Melt
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Minimal Surfaces on Unconcatenated Polymer Rings in Melt

机译:熔体中未连接的聚合物环上的最小表面

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摘要

In order to quantify the effect of mutual threading on conformations and dynamics of unconcatenated and unknotted rings in the melt we computationally examine their minimal surfaces. We found a linear scaling of the surface area with the ring length. Minimal surfaces allow for an unambiguous algorithmic definition of mutual threading between rings. Based on it, we found that, although ring threading is frequent, majority of cases correspond to short loops. These findings explain why approximate theories that neglect threading are so unexpectedly successful despite having no small parameter justification. We also examine threading dynamics and identify the threading order parameter that reflects the ring diffusivity.
机译:为了量化互穿对熔体中未连接和未连接环的构象和动力学的影响,我们通过计算检查了它们的最小表面。我们发现表面积与环长成线性比例关系。最小的曲面允许对环之间的相互螺纹进行明确的算法定义。基于此,我们发现,尽管环线程处理很频繁,但大多数情况对应于短循环。这些发现解释了为什么尽管没有很小的参数合理性,但忽略线程的近似理论却如此出人意料地成功。我们还将检查穿线动力学并确定反映环扩散性的穿线顺序参数。

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