论文标题
您的能力如何生长？：对超分子，软物质网络晶体的中介观点
How does your gyroid grow?: A mesoatomic perspective on supramolecular, soft matter network crystals
论文作者
论文摘要
我们提出了一个框架，以理解根据间月份的构建块形成的超分子网络晶体，该晶体是在中子构建基块的角度，即两亲分子的集体分组，它们起着类似于硬物质晶体的原子或分子亚基的作用。虽然中间人的概念是直观的，并且在球体或圆柱状（类似胶束）域的结晶排列中被广泛引用，但三个周期性的网络晶体的物理有意义的构件的类似概念，例如双重贡献或双二号结构，例如复杂的，双 - 夹层结构。 Focusing on the example of diblock copolymer melts, we propose generic rules for decomposing triply-periodic network crystals into a unique set of mesoatomic building blocks, leading to mesoatomic volumes that are non-convex and bound by smoothly curved faces, unlike the more familiar polyhedral shapes associated with sphere- and cylinder-like mesoatoms.我们分析了这些间原子的形状，它们的内部结构，以及与邻居间摩托单元的本地包装。假设中间的中间结构是在长期尺度上的局部形状和包装模板网络组装的中间结构，我们提出并研究了三种不同的Cubit Double Network晶体的中摩托部分组装的最小能量模型，可预测详细图片的详细图片。我们讨论了超分子软物质网络晶体的间月份描述的潜在扩展和详细说明，对前体海绵阶段中可延展的间月份单元的实验性观察以及有序的立方网络中的实验性观察，以及在原始的，前晶体前，在原始的，晶状体前观察中摩托的可能性。
We propose a framework to understand supramolecular network crystals formed in soft matter in terms of mesoatomic building blocks, collective groupings of amphiphilic molecules that play a role analogous to atomic or molecular subunits of hard matter crystals. While the concept of mesoatoms is intuitive and widely invoked in crystalline arrangements of sphere- or cylinder-like (micelle-like) domains, analogous notions of physically meaningful building blocks of triply periodic network crystals, like the double-gyroid or double-diamond structures are obscured by the complex, bicontinuous domain shapes and intercatenated topologies of the double networks. Focusing on the example of diblock copolymer melts, we propose generic rules for decomposing triply-periodic network crystals into a unique set of mesoatomic building blocks, leading to mesoatomic volumes that are non-convex and bound by smoothly curved faces, unlike the more familiar polyhedral shapes associated with sphere- and cylinder-like mesoatoms. We analyze the shapes of these mesoatoms, their internal structure and importantly their local packing with neighbor mesoatomic units. Hypothesizing that mesoatoms are kinetically favored intermediate structures whose local shapes and packing template network crystal assembly on long time scales, we propose and study a minimal energetic model of mesoatom assembly for three different cubic double-network crystals, which predicts a detailed picture for kinetics of intercatenation and surface growth. We discuss potential extensions and elaborations of the mesoatomic description of supramolecular soft matter network crystals, experimental observations of malleable mesoatomic units in the precursor sponge phase as well as in ordered cubic networks, as well as possibilities for observing mesoatoms in primordial, pre-crystalline states.
