单柔性-半柔性嵌段共聚物的核-壳结构：寻找折叠转变的最小自由能
Core-shell structures in single flexible-semiflexible block copolymers: Finding the free energy minimum for the folding transition
摘要：
我们研究了由半柔性嵌段和柔性嵌段组成的单嵌段共聚物的折叠转变。我们得到了{ \it Saturn-shaped}核壳构象的折叠状态，其中柔性嵌段形成一个核心和半柔性嵌段包裹在它周围。我们证明了两个显着的特点的核壳结构：（i）在共聚物中的折叠转变的动力学是显着更有效的比那些半柔性均聚物。(ii)核壳结构不依赖于转变途径。
英文摘要：
We investigate the folding transition of a single diblock copolymer consisting of a semiflexible and a flexible block. We obtain a {\it Saturn-shaped} core-shell conformation in the folded state, in which the flexible block forms a core and the semiflexible block wraps around it. We demonstrate two distinctive features of the core-shell structures: (i) The kinetics of the folding transition in the copolymer are significantly more efficient than those of a semiflexible homopolymer. (ii) The core-shell structure does not depend on the transition pathway.
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