期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 10, 期 40, 页码 13444-13452出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.2c04155
关键词
green electronics; conductive fiber; regenerated cellulose; PEDOT; VPP
资金
- National Research Foundation of Korea (NRF) - Korean government (MSIP) [2018R1D1A1B07047874]
- Technology Innovation Program - Ministry of Trade, Industry & Energy (MOTIE, Korea) [20011243]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20011243] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2018R1D1A1B07047874] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this study, a green conductive fiber was constructed using regenerated cellulose and poly(3,4-ethyl-enedioxythiophene) (PEDOT) through a wet-spinning process and vapor-phase polymerization. The results showed that the vapor-phase-polymerized PEDOT/RC composite fibers exhibited higher electrical conductivity, good flexibility, and stability, making them suitable for the development of next-generation wearable green electronics.
Green electronics based on biodegradable polymers have received considerable attention as a solution to electronic waste (e-waste). Herein, we describe an efficient approach to constructing green conductive fibers, comprising poly(3,4-ethyl-enedioxythiophene) (PEDOT) and regenerated cellulose (RC), via a wet-spinning process and vapor-phase polymerization (VPP). Eco-friendly RC fibers were prepared as a support layer by wet spinning, and the conductive PEDOT layers were coated onto the surface of the RC fibers by the oxidation of EDOT monomers. We demonstrated that the vapor-phase-polymerized PEDOT/RC composite fibers (PEDOT/RC-VPP) exhibited approximately 17 times higher electrical conductivity (198.2 +/- 7.3 S/cm), compared with that of the solution-phase-polymerized PEDOT/RC compo-site fibers (PEDOT/RC-SPP, 11.6 +/- 0.6 S/cm). Importantly, PEDOT/RC-VPP exhibited a high tensile strength of 181 MPa, good flexibility, and long-standing electrical stability under ambient air conditions. Moreover, the obtained PEDOT/RC-VPP under 50% strain turned on a green light-emitting diode (LED), indicating the flexibility and stability of green conductive fibers. This strategy can be easily integrated into various electronic textiles for the development of next-generation wearable green electronics.
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