1
|
Liu H, Isoda R, Doi M, Muto K, Ando S. Pressure-Induced Enhancement of Room-Temperature Phosphorescence in Heavy Halogen-Containing Imide and Polyimide. J Phys Chem B 2024. [PMID: 39054756 DOI: 10.1021/acs.jpcb.4c03946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
To investigate the correlation between the aggregated state and photoluminescence (PL) mechanism of dual fluorescent (FL) and phosphorescent (PH) polyimides (PIs), the photophysical processes of FL-type BP-PI, PH-type DBrBP-PI, and their corresponding imide model compounds (BP-MC and DBrBP-MC) dispersed in poly(methyl methacrylate) (PMMA) films were analyzed at elevated pressures up to 8 GPa using a diamond anvil cell. Dibromo-substituted DBrBP-MC demonstrated a shorter wavelength absorption than BP-MC owing to the larger dihedral angle in the biphenyl moiety. Both MCs exhibited red-shifts in their absorption spectra with increasing pressure, indicating planarization occurred at the biphenyl moieties associated with the compression of the free volume in PMMA. The PL intensity of BP-MC increased with increasing pressure, while its quantum yield (ΦPL) decreased sharply due to the enhanced energy transfer via the Förster mechanism. In contrast, the PH quantum yield (ΦPH) of DBrBP-MC monotonically increased at lower pressures, while it showed excitation wavelength-dependent behaviors at higher pressures: ΦPH remained unchanged under excitation at 340 nm but gradually increased under excitation at 365 nm. This fact suggests that, at higher pressures, 365 nm excitation promoted intersystem crossing (ISC) from excited singlet states at higher energy levels. Using this phenomenon, a significant pressure-induced PH enhancement (PIPE) was observed for DBrBP-PI up to 0.9 GPa upon excitation at 365 nm, which is a rare phenomenon for organic polymers. This study indicates that even in colorless and optically transparent amorphous polymers, an enhancement of PH due to restricted molecular motion and intensified ISC outweighs the deactivation due to intermolecular energy transfer under certain pressures, leading to an increase in ΦPH.
Collapse
Affiliation(s)
- Haonan Liu
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
| | - Ryuichi Isoda
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
| | - Marina Doi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
| | - Koichiro Muto
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
| | - Shinji Ando
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
| |
Collapse
|
2
|
Zhang C, Zhang Y, Wang W, Xi N, Liu L. A Manta Ray-Inspired Biosyncretic Robot with Stable Controllability by Dynamic Electric Stimulation. CYBORG AND BIONIC SYSTEMS 2022. [DOI: 10.34133/2022/9891380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Biosyncretic robots, which are new nature-based robots in addition to bionic robots, that utilize biological materials to realize their core function, have been supposed to further promote the progress in robotics. Actuation as the main operation mechanism relates to the robotic overall performance. Therefore, biosyncretic robots actuated by living biological actuators have attracted increasing attention. However, innovative propelling modes and control methods are still necessary for the further development of controllable motion performance of biosyncretic robots. In this work, a muscle tissue-based biosyncretic swimmer with a manta ray-inspired propelling mode has been developed. What is more, to improve the stable controllability of the biosyncretic swimmer, a dynamic control method based on circularly distributed multiple electrodes (CDME) has been proposed. In this method, the direction of the electric field generated by the CDME could be real-time controlled to be parallel with the actuation tissue of the dynamic swimmer. Therefore, the instability of the tissue actuation induced by the dynamic included angle between the tissue axis and electric field direction could be eliminated. Finally, the biosyncretic robot has demonstrated stable, controllable, and effective swimming, by adjusting the electric stimulation pulse direction, amplitude, and frequency. This work may be beneficial for not only the development of biosyncretic robots but also other related studies including bionic design of soft robots and muscle tissue engineering.
Collapse
Affiliation(s)
- Chuang Zhang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
| | - Yiwei Zhang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
- School of Automation and Electrical Engineering, Shenyang Ligong University, Shenyang 110159, China
| | - Wenxue Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
| | - Ning Xi
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
- Emerging Technologies Institute, Department of Industrial & Manufacturing Systems Engineering, University of Hong Kong, Pokfulam, China
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
| |
Collapse
|
3
|
Modulation of the optoelectronic properties of polyimide (Kapton-H) films by gamma irradiation for laser attenuation and flexible space structures. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
4
|
Xian L, Wang K, Huang Y, Liu P, An H, Yang S, Chang S, Zhang H. Degradation of polyimide films modified by carbon nanotubes under electron beam irradiation and tensile stress. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08218-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
5
|
Fujiwara E, Orita R, Vyšniauskas A, Franckevičius M, Ishige R, Gulbinas V, Ando S. Ultrafast Spectroscopic Analysis of Pressure-Induced Variations of Excited-State Energy and Intramolecular Proton Transfer in Semi-Aliphatic Polyimide Films. J Phys Chem B 2021; 125:2425-2434. [PMID: 33629863 DOI: 10.1021/acs.jpcb.0c11500] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The relationship between the photoexcitation dynamics and the structures of semi-aliphatic polyimides (3H-PIs) was investigated using ultrafast fluorescent emission spectroscopy at atmospheric and increased pressures of up to 4 GPa. The 3H-PI films exhibited prominent fluorescence with extremely large Stokes shifts (Δν > 10 000 cm-1) through an excited-state intramolecular proton transfer (ESIPT) induced by keto-enol tautomerism at the isolated dianhydride moiety. The incorporation of bulky -CH3 and -CF3 side groups at the diamine moiety of the PIs increased the quantum yields of the ESIPT fluorescence owing to an enhanced interchain free volume. In addition, 3H-PI films emitted another fluorescence at shorter wavelengths originating from closely packed polyimide (PI) chains (in aggregated forms), which was mediated through a Förster resonance energy transfer (FRET) from an isolated enol form into aggregated forms. The FRET process became more dominant than the ESIPT process at higher pressures owing to an enhancement of the FRET efficiency caused by the increased dipole-dipole interactions associated with a densification of the PI chain packing. The efficiency of the FRET rapidly increased by applying pressure up to 1 GPa owing to an effective compression of the interchain free volume and additionally gradually increased at higher pressures owing to structural and/or conformational changes in the main chains.
Collapse
Affiliation(s)
- Eisuke Fujiwara
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| | - Ryoji Orita
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| | - Aurimas Vyšniauskas
- Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius 10257, Lithuania
| | - Marius Franckevičius
- Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius 10257, Lithuania
| | - Ryohei Ishige
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| | - Vidmantas Gulbinas
- Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius 10257, Lithuania
| | - Shinji Ando
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| |
Collapse
|
6
|
Direct evidence for the validity of assessing reaction extent by torque spectrum during reactive processing. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
7
|
Qiu W, Gurr PA, da Silva G, Qiao GG. Insights into the mechanochromism of spiropyran elastomers. Polym Chem 2019. [DOI: 10.1039/c9py00017h] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Colourless polymeric samples comprising mechanochromic spiropyrans (SPs) rapidly appear coloured under external pressure, due to their transition from ring closed SP to ring-opened merocyanine (MC).
Collapse
Affiliation(s)
- Wenlian Qiu
- Department of Chemical Engineering
- The University of Melbourne
- Australia
| | - Paul A. Gurr
- Department of Chemical Engineering
- The University of Melbourne
- Australia
| | - Gabriel da Silva
- Department of Chemical Engineering
- The University of Melbourne
- Australia
| | - Greg G. Qiao
- Department of Chemical Engineering
- The University of Melbourne
- Australia
| |
Collapse
|
8
|
Fujiwara E, Fukudome H, Takizawa K, Ishige R, Ando S. Pressure-Induced Variations of Aggregation Structures in Colorless and Transparent Polyimide Films Analyzed by Optical Microscopy, UV–Vis Absorption, and Fluorescence Spectroscopy. J Phys Chem B 2018; 122:8985-8997. [DOI: 10.1021/acs.jpcb.8b06423] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Eisuke Fujiwara
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| | - Hiroshi Fukudome
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| | - Kazuhiro Takizawa
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| | - Ryohei Ishige
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| | - Shinji Ando
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-E4-5, Meguro-ku, Tokyo 152-8552, Japan
| |
Collapse
|
9
|
Microstructure evolution of polyimide films induced by electron beam irradiation-load coupling treatment. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.07.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
10
|
Fujiwara E, Ishige R, Owaki S, Kita N, Yamada K, Matsuoka T, Sasaki S, Ando S. Pressure Induced Variations in Refractive Index of Aromatic Polyimide Film Analyzed by Brillouin Scattering. J PHOTOPOLYM SCI TEC 2018. [DOI: 10.2494/photopolymer.31.599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Eisuke Fujiwara
- Department of Chemical Science and Engineering, Tokyo Institute of Technology
| | - Ryohei Ishige
- Department of Chemical Science and Engineering, Tokyo Institute of Technology
| | - Shota Owaki
- Department of Materials Science and Technology, Gifu University
| | - Naohiro Kita
- Department of Materials Science and Technology, Gifu University
| | - Kenta Yamada
- Department of Materials Science and Technology, Gifu University
| | - Takahiro Matsuoka
- Department of Electrical, Electronic and Computer Engineering, Gifu University
| | - Shigeo Sasaki
- Department of Electrical, Electronic and Computer Engineering, Gifu University
| | - Shinji Ando
- Department of Chemical Science and Engineering, Tokyo Institute of Technology
| |
Collapse
|
11
|
Dong SS, Shao WZ, Yang L, Ye HJ, Zhen L. Surface characterization and degradation behavior of polyimide films induced by coupling irradiation treatment. RSC Adv 2018; 8:28152-28160. [PMID: 35542697 PMCID: PMC9084296 DOI: 10.1039/c8ra05744c] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 07/31/2018] [Indexed: 12/13/2022] Open
Abstract
Schematic of irradiation-load-heating coupling treatment and degradation process of polyimide film.
Collapse
Affiliation(s)
- Shan-Shan Dong
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Wen-Zhu Shao
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Li Yang
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Hui-Jian Ye
- Institute of Polymer Materials and Engineering
- College of Materials Science and Engineering
- Zhejiang University of Technology
- Hangzhou
- China
| | - Liang Zhen
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin
- China
| |
Collapse
|
12
|
Yan Y, Sun N, Li F, Jia X, Wang C, Chao D. Multiple Stimuli-Responsive Fluorescence Behavior of Novel Polyamic Acid Bearing Oligoaniline, Triphenylamine, and Fluorene Groups. ACS APPLIED MATERIALS & INTERFACES 2017; 9:6497-6503. [PMID: 28112505 DOI: 10.1021/acsami.6b16402] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Multiple stimuli-responsive fluorescent materials have gained increasing attention for their fundamental investigation and intelligent applications. In this work, we report design and synthesis of a novel polyamic acid bearing oligoaniline, triphenylamine, and fluorene groups, which served as sensitive units and fluorescence emission unit, respectively. The resulting polymer exhibits multiple stimuli-responsive fluorescence switching behavior triggered by redox species, pH, electrochemical, and pressure stimuli. Every fluorescence switching mechanism upon each stimulus was studied in detail. The interactions and energy transfer between sensitive units and emission unit are largely responsible for this fascinating fluorescent switching behavior. This work provides a deep understanding of the optical switching essence upon these stimuli, opening the way for the development of new fluorescent sensing applications.
Collapse
Affiliation(s)
| | | | | | - Xiaoteng Jia
- Intelligent Polymer Research Institute, AIIM Faculty, University of Wollongong , Wollongong, NSW 2522, Australia
| | | | | |
Collapse
|
13
|
Wang J, Zhou Q, Chao D, Li F, Cui T. In situ determination of mechanical properties for poly(ether ether ketone) film under extreme conditions. RSC Adv 2017. [DOI: 10.1039/c6ra27657a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The isothermal compressibility and pressure dependence of mechanical moduli of PEEK film under extreme conditions have been examined and determined.
Collapse
Affiliation(s)
- Jiayu Wang
- State Key Lab of Superhard Materials
- College of Physics
- Jilin University
- Changchun 130012
- P. R. China
| | - Qiang Zhou
- State Key Lab of Superhard Materials
- College of Physics
- Jilin University
- Changchun 130012
- P. R. China
| | - Danming Chao
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Fangfei Li
- State Key Lab of Superhard Materials
- College of Physics
- Jilin University
- Changchun 130012
- P. R. China
| | - Tian Cui
- State Key Lab of Superhard Materials
- College of Physics
- Jilin University
- Changchun 130012
- P. R. China
| |
Collapse
|