Binary mixtures of semiflexible polymers with the same chain length, but different persistence lengths, separate into two coexisting different nematic phases when the osmotic pressure of the lyotropic solution is varied. Molecular Dynamics simulations and Density Functional Theory predict phase diagrams either with a triple point, where the isotropic phase coexists with two nematic phases or a critical point of unmixing within the nematic mixture. The difference in locally preferred bond angles between the constituents drives this unmixing without any attractive interactions between monomers.

中文翻译：

---

半柔性聚合物向列共混物中的熵解

当溶致溶液的渗透压变化时，具有相同链长但具有不同持久性长度的半柔性聚合物的二元混合物会分成两个共存的不同向列相。分子动力学模拟和密度泛函理论可预测具有三点的相图，其中各向同性相与两个向列相共存，或向列混合物内解混的临界点。成分之间局部优选的键角的差异驱动这种解混而单体之间没有任何吸引人的相互作用。