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Kwon M, Yang J, Kim H, Joo H, Joo SW, Lee YS, Lee HJ, Jeong SY, Han JH, Paik HJ. Controlling Graphene Wrinkles through the Phase Transition of a Polymer with a Low Critical Solution Temperature. Macromol Rapid Commun 2021; 42:e2100489. [PMID: 34599783 DOI: 10.1002/marc.202100489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/28/2021] [Indexed: 11/06/2022]
Abstract
A novel method for controlling reduced graphene oxide (rGO) wrinkles through a phase transition in a solution using a low critical solution temperature (LCST) polymer dispersant has been developed. The polymer dispersant is designed by control of architecture and composition using reversible addition-fragmentation chain transfer polymerization. Synthesized poly(2-(dimethylaminoethyl) methacrylate-block-styrene) (PDbS) can be successfully functionalized on the rGO surface via noncovalent functionalization. PDbS-functionalized rGO (PDbS-rGO) exhibits good dispersibility in an aqueous phase at room temperature and forms wrinkles on the PDbS-rGO surface because of phase transition at the LCST of the polymer dispersant. The formation of PDbS-rGO wrinkles is controlled by varying the aggregation number of the polymer dispersant on the PDbS-rGO surface that strongly depends on temperature. This is confirmed by transmission electron microscopy, scanning electron microscopy, and Raman spectroscopy (ID' /IG ratios are 0.560, 0.579, and 0.684, which correspond to 45, 70, and 95 °C, respectively). In addition, the mechanism of wrinkle control is proved by gold nanoparticles that are grown in polymer dispersant on the PDbS-rGO surface.
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Affiliation(s)
- Minho Kwon
- Department of Polymer Science and Engineering Pusan National University 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 609-735, Korea
| | - Jiyeon Yang
- Department of Polymer Science and Engineering Pusan National University 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 609-735, Korea
| | - Hanyoung Kim
- Department of Polymer Science and Engineering Pusan National University 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 609-735, Korea
| | - Hyeyoung Joo
- Department of Polymer Science and Engineering Pusan National University 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 609-735, Korea
| | - Sang-Woo Joo
- Department of Chemistry Soongsil University 369, Sangdo-ro, Dongjak-gu, Seoul, 06978, Korea
| | - Young Sil Lee
- Industry-Academic Cooperation, Kumoh National Institute of Technology, Gumi, 39177, Korea
| | - Hye Jung Lee
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon, 641-120, Korea
| | - Seung Yol Jeong
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon, 641-120, Korea.,Department of Electro-Functionality Materials Engineering, University of Science and Technology(UST), Daejon, 305-333, Korea
| | - Jong Hun Han
- School of Applied Chemical Engineering Chonnam National University 77, Yongbong-ro, Buk-gu, Gwangju, 500-757, Korea
| | - Hyun-Jong Paik
- Department of Polymer Science and Engineering Pusan National University 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 609-735, Korea
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Veeramuthu L, Venkatesan M, Liang FC, Benas JS, Cho CJ, Chen CW, Zhou Y, Lee RH, Kuo CC. Conjugated Copolymers through Electrospinning Synthetic Strategies and Their Versatile Applications in Sensing Environmental Toxicants, pH, Temperature, and Humidity. Polymers (Basel) 2020; 12:E587. [PMID: 32150907 PMCID: PMC7182922 DOI: 10.3390/polym12030587] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/12/2020] [Accepted: 02/19/2020] [Indexed: 11/16/2022] Open
Abstract
Conjugated copolymers (CCPs) are a class of polymers with excellent optical luminescent and electrical conducting properties because of their extensive π conjugation. CCPs have several advantages such as facile synthesis, structural tailorability, processability, and ease of device fabrication by compatible solvents. Electrospinning (ES) is a versatile technique that produces continuous high throughput nanofibers or microfibers and its appropriate synchronization with CCPs can aid in harvesting an ideal sensory nanofiber. The ES-based nanofibrous membrane enables sensors to accomplish ultrahigh sensitivity and response time with the aid of a greater surface-to-volume ratio. This review covers the crucial aspects of designing highly responsive optical sensors that includes synthetic strategies, sensor fabrication, mechanistic aspects, sensing modes, and recent sensing trends in monitoring environmental toxicants, pH, temperature, and humidity. In particular, considerable attention is being paid on classifying the ES-based optical sensor fabrication to overcome remaining challenges such as sensitivity, selectivity, dye leaching, instability, and reversibility.
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Affiliation(s)
- Loganathan Veeramuthu
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Manikandan Venkatesan
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Fang-Cheng Liang
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Jean-Sebastien Benas
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Chia-Jung Cho
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Chin-Wen Chen
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
| | - Ye Zhou
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China;
| | - Rong-Ho Lee
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan;
| | - Chi-Ching Kuo
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan; (L.V.); (M.V.); (F.-C.L.); (J.-S.B.); (C.-W.C.)
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Li Q, Yuan Y, He L, Liu S, Zhang H. Multistimuli-responsive small-molecule compound with aggregation-induced emission enhancement characteristics: preparation, properties and applications. NEW J CHEM 2018. [DOI: 10.1039/c8nj04962a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel multifunctional luminescent small-molecule compound with aggregation-induced emission enhancement characteristics was successfully designed and synthesized.
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Affiliation(s)
- Qiangjun Li
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Yongjie Yuan
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Lifang He
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Shenglan Liu
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Hailiang Zhang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
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