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He J, Li Z, Lin K, Zhong R, Cao H, Xie X, Pu G, Wang Z, Wang Y, Yin Q, Wang Y, Zhang K. High-Energy Electron Beam-Induced Enhanced Thermoelectric Performance and Irradiation Resistance of PEDOT: PSS. ACS APPLIED MATERIALS & INTERFACES 2025. [PMID: 40394872 DOI: 10.1021/acsami.5c04618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2025]
Abstract
Electron beam (EB) irradiation, a powerful method for electronic and molecular structure regulation of polymer materials, has been proven to be an effective strategy to boost the electrical conductivity (σ) of PEDOT: PSS. However, the irradiation damage from chain scission and cross-linking has an adverse effect on the mechanical and thermal performance. Herein, we propose a convenient approach to enhance irradiation resistance property by adding a chemical oxidant, ammonium persulfate (APS), into PEDOT: PSS, in which irradiation-induced fragmentations can be reaggregated via initiating free radical polymerization through APS. The PEDOT: PSS films doped with 5 wt % APS were exposed to 10 MeV EB irradiation at doses ranging from 2.5 to 20 kGy. The electrical conductivity of PEDOT: PSS-APS films reached 596 S cm-1 at a dose of 2.5 kGy, 2 orders of magnitude higher than that of pure PEDOT: PSS films (4.94 S cm-1), while the Seebeck coefficient remained nearly constant. An optimal thermoelectric power factor (PF) of 16.75 μW m-1 K-2 was achieved. The 1000-fold increase in carrier concentration (n) can elucidate the enhancement in the PF despite the deterioration of carrier mobility. During irradiation, more effective cross-linking occurred in PEDOT: PSS-APS films than in pure PEDOT: PSS. Structural characterization and DFT computational results implied that the imine or protonated amine brought by APS could not only improve the molecular structure but also narrow the band gap, which helped charge transport. The chain fragments caused by chain scission during irradiation could be polymerized via APS into new molecular chains, which influenced the transportation of charge carriers and resulted in enhanced thermal stability and mechanical properties of PEDOT: PSS-APS films. This work provides a simple and innovative treatment to improve both the thermoelectric property and the irradiation resistance of conducting polymers.
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Affiliation(s)
- Jia He
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
| | - Zan Li
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
| | - Kunhua Lin
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Rui Zhong
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
| | - Hongwen Cao
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
| | - Xin Xie
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
| | - Guo Pu
- School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Zhijun Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yueping Wang
- Sichuan Guang Fa Irradiation Technology Co., Ltd, Suining 629000, China
| | - Qinjian Yin
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yihan Wang
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
| | - Kun Zhang
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
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Dispersion and agglomeration behaviors of submicron ceria particles in concentrated slurries. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-021-04894-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Highly Sensitive Detection of Benzoyl Peroxide Based on Organoboron Fluorescent Conjugated Polymers. Polymers (Basel) 2019; 11:polym11101655. [PMID: 31614619 PMCID: PMC6835668 DOI: 10.3390/polym11101655] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/09/2019] [Accepted: 10/09/2019] [Indexed: 01/08/2023] Open
Abstract
The method capable of rapid and sensitive detection of benzoyl peroxide (BPO) is necessary and receiving increasing attention. In consideration of the vast signal amplification of fluorescent conjugated polymers (FCPs) for high sensitivity detection and the potential applications of boron-containing materials in the emerging sensing fields, the organoboron FCPs, poly (3-aminophenyl boronic acid) (PABA) is directly synthesized via free-radical polymerization reaction by using the commercially available 3-aminophenyl boronic acid (ABA) as the functional monomer and ammonium persulfate as the initiator. PABA is employed as a fluorescence sensor for sensing of trace BPO based on the formation of charge-transfer complexes between PABA and BPO. The fluorescence emission intensity of PABA demonstrates a negative correlation with the concentration of BPO. And a linear range of 8.26 × 10−9 M–8.26 × 10–4 M and a limit of detection of 1.06 × 10–9 M as well as a good recovery (86.25%–111.38%) of BPO in spiked real samples (wheat flour and antimicrobial agent) are obtained. The proposed sensor provides a promising prospective candidate for the rapid detection and surveillance of BPO.
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Ozkan S, Gumus OY, Unal HI. Synergistic Effects of Surfactant on Dielectric and Electrorheological Properties of Boronic Acid Derivative Polymer Dispersions. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600275] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Seyma Ozkan
- Smart Materials Research Lab; Department of Chemistry; Faculty of Science; University of Gazi; Ankara 06560 Turkey
| | - Omer Yunus Gumus
- Department of Fiber and Polymer Engineering; Faculty of Natural Sciences; ,Architecture and Engineering; Bursa Technical University; Bursa 16310 Turkey
| | - Halil Ibrahim Unal
- Smart Materials Research Lab; Department of Chemistry; Faculty of Science; University of Gazi; Ankara 06560 Turkey
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