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Hexagonally Packed Cylindrical Structures with Multiple Satellites from Pentablock Quarterpolymers of the AB(1)CB(2)D Type and Their Blends with Homopolymers

机译:六角包装圆柱结构,具有来自AB(1)CB(2)D型的Pentablock四分之一聚合物的多颗卫星,其与均聚物的共混物

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摘要

Three kinds of hexagonally packed cylindrical (HPC) structures with 10/8 satellites have been found from a neat pentablock quarterpolymer of the AS1IS2P type, composed of poly(4-vinylbenzyldimethylamine) (A), polystyrene (S), polyisoprene (I), and poly(2- vinylpyridine) (P), and block polymer/ homopolymer blends. AS(1)IS(2)P-2 (M = 276k, phi(A)/phi S1/phi I/phi S2/phi(P) = 0.08/0.17/ 0.12/0.33/0.30) shows HPC of P with 10 single-arrayed I satellites and 6 A subsatellites in the S matrix, where the I/P ratio number is 5, while AS1IS2P-2 (M = 325k,.A/.S1/.I/.S2/.P = 0.07/0.31/0.14/0.18/0.30)/Sh(M;11k) = 90/10 blend reveals another HPC of P with 10 I satellites, giving an I/P ratio of 6, whose array of I is a single/double mixture. Moreover, AS1IS2P-1/Sh/Ah(M;9k) = 90/5/5 blend represents two enantiomeric HPC packings with 8 double-arrayed I satellites having an I/P ratio of 7, which can be considered to be approximants of two enantiomeric 3.3.3.3.6 Archimedean tilings. These structures were conceived to be formed by the enhanced miscibility of tail A-chains with added homopolymers, resulting in an increase of the (A + S)/I interaction leading to the split of I domains.
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  • 来源
    《ACS Macro Letters》 |2021年第3期|共6页
  • 作者单位

    Nagoya Univ Grad Sch Engn Dept Mol &

    Macromol Chem Nagoya Aichi 4648603 Japan;

    High Energy Accelerator Res Org Comp Res Ctr Tsukuba Ibaraki 3050801 Japan;

    Nagoya Univ Grad Sch Engn Dept Mol &

    Macromol Chem Nagoya Aichi 4648603 Japan;

    Toyota Phys &

    Chem Res Inst Nagakute Aichi 4801192 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 有机化学;
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