Cylindrical Super-Lattice Structures with Three-Contrasts from Pentablock Binary Blends Studied by Monte Carlo Simulation
Cylindrical Super-Lattice Structures with Three-Contrasts from Pentablock Binary Blends Studied by Monte Carlo Simulation
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蒙特卡罗模拟研究五元二元混合物的三对比圆柱超晶格结构
DOI：
10.1002/mats.202100015
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Yushu Matsushita
中科院分区：
文献类型：
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作者：
Jiro Suzuki;Makoto Suzuki;Atsushi Takano;Yushu Matsushita
研究了四元五嵌段共聚物AB 0 CB 1D和CB 0AB 1D二元共混物的三对比圆柱形超晶格结构，其中B 0和B1为相同的聚合物组分.两种四元共聚物的结构差异仅在于A和C嵌段链的顺序。第一、第三和第五组分的体积分数分别表示为φ1、φ3和φ5，γ是两个B链的体积分数比，γ = φ B 0/φB1。为了在B矩阵相中形成具有三个对比度的圆柱形域，φ1，φ3和φ 5被固定为φ1= φ5= 0.125和φ3= 0.156。在大γ区，出现了（2+2）和（3+3）镶嵌超晶格结构，即每个D-畴由两个或三个A-和C-柱体包围，其基本镶嵌为正方形和正六边形。在较小的γ区域，观察到非传统的（4+4）和（5+5）（3）圆柱形超晶格结构，其中每个D-畴被四个或五个A-和C-圆柱体包围，每个圆柱体作为卫星。由于正方形和正六边形可以给出欧几里德规则的平铺，因此可以容易地形成传统的（2+2）和（3+3）结构，而（4+4）和（5+5）（3）非传统的圆柱形超晶格结构仅仅因为正八边形和十边形不能填充2D表面而被展示。
The cylindrical super‐lattice structures with three‐contrasts from binary blends of four‐component pentablock quadpolymers,AB0CB1DandCB0AB1D, is studied, whereB0andB1are the same polymer component. The difference in the architecture between two quadpolymers consists merely in the order ofAandCblock chains. The volume fractions of the first‐, third‐, and fifth‐components are denoted as φ1, φ3, and φ5, respectively, and γ is the volume fraction ratio of twoB‐chains, γ = φB0/φB1. To form cylindrical domains with three‐contrasts inB‐matrix phase, φ1, φ3, and φ5are fixed as φ1= φ5= 0.125 and φ3= 0.156. At the large γ region, the (2+2) and (3+3) tiling super‐lattice structures appear, where eachD‐domain is surrounded with two or threeA‐ andC‐cylinders each and their basic tilings are of squares and regular hexagons. At the smaller γ region, untraditional (4+4) and (5+5)(3) cylindrical super‐lattice structures are observed, where eachD‐domain is surrounded with four or fiveA‐ andC‐cylinders each as satellites. Since square and regular hexagon can give Euclidean regular tilings, traditional (2+2) and (3+3) structures can be easily formed, while (4+4) and (5+5)(3) untraditional cylindrical super‐lattice structures are exhibited simply because regular octagons and decagons cannot fill out 2D surface.