Periodic and Aperiodic Tiling Patterns from a Tetrablock Terpolymer System of the A1BA2C Type,ACS Macro Letters

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Periodic and Aperiodic Tiling Patterns from a Tetrablock Terpolymer System of the A1BA2C Type
ACS Macro Letters ( IF 5.1 ) Pub Date : 2019-12-12 , DOI: 10.1021/acsmacrolett.9b00861
Yuta Miyamori ₁ , Jiro Suzuki ₂ , Atsushi Takano ₁ , Yushu Matsushita ₁

Affiliation

Two tetrablock terpolymers of the S₁IS₂P type, where S, I, and P denote polystyrene, polyisoprene, and poly(2-vinylpyridine), respectively, were prepared anionically. S₁IS₂P-1 (S₁/I/S₂/P = 0.35/0.16/0.34/0.15, four numbers being volume fractions of S₁, I, S₂, and P block chains) has a structure with double hexagonal cylinders, while S₁IS₂P-2 (S₁/I/S₂/P = 0.47/0.15/0.22/0.16) has an unusual double tetragonal structure. Moreover, 13 binary blends were prepared from these two parent polymers. Among them, five blends with α(= φ_S1/φ_S2) covering the range 1.50 ≤ α ≤ 1.86 were confirmed to have a 3.3.4.3.4 Archimedean tiling structure, in which their P domains adopt five satellite I domains, while four blends with α covering the range 1.37 ≤ α ≤ 1.48 were revealed to be a quasicrystalline tiling structure with dodecagonal symmetry.

中文翻译：

来自 A1BA2C 型四嵌段三元共聚物系统的周期性和非周期性拼接图案

_{S 1} IS ₂ P 型的两种四嵌段三元共聚物，其中 S、I 和 P 分别表示聚苯乙烯、聚异戊二烯和聚 (2-乙烯基吡啶)，以阴离子方式制备。S ₁ IS ₂ P-1（S ₁ /I/S ₂ /P = 0.35/0.16/0.34/0.15，四个数字分别是S ₁、I、S ₂和P区块链的体积分数）具有双倍结构六边形圆柱体，而 S ₁ IS ₂ P-2 (S ₁ /I/S ₂ /P = 0.47/0.15/0.22/0.16) 具有不寻常的双四边形结构。此外，由这两种母体聚合物制备了 13 种二元共混物。其中，有 5 个与 α(= φ_S1 /φ _S2 ) 覆盖范围 1.50 ≤ α ≤ 1.86 被证实具有 3.3.4.3.4 Archimedean tiling 结构，其中它们的 P 域采用五个卫星 I 域，而与 α 混合的四个混合覆盖范围 1.37 ≤ α ≤ 1.48 被揭示为具有十二边形对称性的准晶平铺结构。

更新日期：2019-12-13

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