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Cheng J, Jiang R, Shan Y, Sun H, Kanehashi S, Ogino K. Synthesis and Electron Transporting Properties of Diblock Copolymers Consisting of Polyfluorene and Polystyrene. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2694. [PMID: 38893958 PMCID: PMC11174037 DOI: 10.3390/ma17112694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024]
Abstract
Poly(9,9-di-n-octylfluorene) (PFO) is a promising material for polymer light-emitting diodes (PLEDs) due to its advantageous properties. To enhance its electron transporting capabilities, diblock polymers were synthesized by attaching polystyrene (PSt) chains of varying lengths to one end of the PFO molecule. In a comparative study with PFO homopolymer, the diblock polymers maintained similar thermal properties, absorption spectra, and photoluminescent stability, while exhibiting slightly deeper lowest unoccupied molecular orbital (LUMO) levels and higher crystallinity. Notably, diblock polymers with shorter polystyrene blocks demonstrated higher electron mobility than the PFO homopolymer and diblock polymers with excessively long polystyrene blocks. These findings suggest that the optimal chain length of the polystyrene block is crucial for maximizing electron mobility, thus offering valuable insights for designing high-performance PLED materials.
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Affiliation(s)
- Jin Cheng
- Department of Chemical Engineering and Pharmaceutical Engineering, Changzhou Vocational Institute of Engineering, Changzhou 213164, China; (J.C.)
- Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, China
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi 184-8588, Japan;
| | - Ruoyu Jiang
- Department of Chemical Engineering and Pharmaceutical Engineering, Changzhou Vocational Institute of Engineering, Changzhou 213164, China; (J.C.)
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi 184-8588, Japan;
| | - Yuhua Shan
- Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hong Sun
- Zhejiang Fenghong New-Material Co., Ltd., Huzhou 313300, China
| | - Shinji Kanehashi
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi 184-8588, Japan;
- Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi 184-8588, Japan
| | - Kenji Ogino
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi 184-8588, Japan;
- Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi 184-8588, Japan
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Facile access to coil-rod-coil-type block copolymers by CuAAC-based macromolecular clicking. Polym J 2022. [DOI: 10.1038/s41428-022-00714-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Shimomoto H, Moriya TA, Mori T, Itoh T, Kanehashi S, Ogino K, Ihara E. Single-Component Polycondensation of Bis(alkoxycarbonyldiazomethyl)aromatic Compounds To Afford Poly(arylene vinylene)s with an Alkoxycarbonyl Group on Each Vinylene Carbon Atom. ACS OMEGA 2020; 5:4787-4797. [PMID: 32201764 PMCID: PMC7081273 DOI: 10.1021/acsomega.9b03408] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
The original synthetic strategy for a new type of poly(arylene vinylene) (PAV) is presented, where the C=C-bond-forming coupling of bis(alkoxycarbonyldiazomethyl)aromatic compounds is utilized as propagation. The strategy is unique in that the resulting PAVs have an alkoxycarbonyl group as an electron-withdrawing substituent on each vinylene carbon atom in the polymer main chain. Among the transition-metal catalysts examined in this study, RuCl(cod)Cp* (cod = 1,5-cyclooctadiene, Cp* = pentamethylcyclopentadienyl) is the most efficient, affording PAVs from a series of bis(alkoxycarbonyldiazomethyl)aromatic compounds with a high trans-C=C-forming selectivity of up to 90%. A PAV sample with a fluorenylene framework as an arylene moiety prepared by the Ru catalyst exhibited a hole mobility of 4 × 10-6 cm2 V-1 s-1.
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Affiliation(s)
- Hiroaki Shimomoto
- Department
of Materials Science and Biotechnology, Graduate School of Science
and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Taka-aki Moriya
- Department
of Materials Science and Biotechnology, Graduate School of Science
and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Takeshi Mori
- Department
of Materials Science and Biotechnology, Graduate School of Science
and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Tomomichi Itoh
- Department
of Materials Science and Biotechnology, Graduate School of Science
and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Shinji Kanehashi
- Graduate
School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Kenji Ogino
- Graduate
School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Eiji Ihara
- Department
of Materials Science and Biotechnology, Graduate School of Science
and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
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OGINO K, SEKI N, QIAN S, TANE S, HAYASHI K, KANEHASHI S. Synthesis and Characterization of Poly(3-hexylthiophene)- block-poly(styrene) Containing Perylene Diimide Moiety at Junction. KOBUNSHI RONBUNSHU 2019. [DOI: 10.1295/koron.2018-0057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kenji OGINO
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology
| | - Noritaka SEKI
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology
| | - Sicong QIAN
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology
| | - Shizuka TANE
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology
| | - Kazuya HAYASHI
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology
| | - Shinji KANEHASHI
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology
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