Towards Macroscopically Anisotropic Functionality: Oriented Metallo-supramolecular Polymeric Materials Induced by Magnetic Fields

被引：18

作者：

Tu, Tsung-Han ^{[1
]}

Sakurai, Tsuneaki ^{[2
]}

Seki, Shu ^{[2
]}

Ishida, Yasuhiro ^{[3
]}

Chan, Yi-Tsu ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan

[2] Kyoto Univ, Dept Mol Engn, Grad Sch Engn, Nishikyo Ku, Kyoto 6158510, Japan

[3] RIKEN, Ctr Emergent Matter Sci, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2021年 / 60卷 / 04期

关键词：

anisotropic orientation; magnetic field alignment; metallo-supramolecular copolymers; self-assembly; terpyridines; REGIOREGULAR POLY(3-HEXYL THIOPHENE); CATALYST-TRANSFER POLYCONDENSATION; CHAIN-GROWTH POLYMERIZATION; COIL BLOCK-COPOLYMERS; FIBER-LIKE MICELLES; ROD-COIL; DIBLOCK COPOLYMER; THIN-FILMS; FACILE SYNTHESIS; ALIGNED NANOPORES;

D O I：

10.1002/anie.202012284

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Based on the predesigned self-selective complexation, metallo-supramolecular P3HT-b-PEO diblock copolymers with varying block ratios were synthesized, and their oriented polymer films generated during solvent evaporation in a 9 T magnetic field were investigated. An anisotropic, ordered layer structure was achieved using [P3HT(20)-Zn-PEO107] and carefully characterized by polarized optical microscopy (POM), AFM, polarized UV/Vis spectroscopy, and GI-SAXS/WAXS. The PEO-removed [P3HT(20)-Zn-PEO107] film was obtained after decomplexation with TEA-EDTA under mild conditions, and the selective removal of PEO domains was evidenced by UV/Vis and ATR-FTIR spectroscopy. Anisotropic photoconductivity of the magnetically aligned film was evaluated by flash-photolysis time-resolved microwave conductivity (FP-TRMC) measurements. The results indicated that the presence of insulating crystalline PEO segments diminished the photoconductivity along the P3HT backbone direction.

引用

页码：1923 / 1928

页数：6

共 5 条

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