Electro-optical properties of poly(2-ethynyl-N-hexylpyridinium bromide) and poly(2-ethynyl-N-hexylpyridinium iodide) |
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| Institution: | 1. Department of Material Physics, Harbin University of Science and Technology, Harbin 150080, China;2. Department of Chemistry Education, Pusan National University, Pusan 609-735, South Korea;3. Department of Textile and Fashion Technology, Kyungil University, Kyungsangbuk-Do, Kyungsan 712-701, South Korea;4. Department of Chemistry, Center for Nanotech. Res., The Catholic University, Bucheon 420-743, South Korea;5. College of Pharmacy, Pusan National University, Pusan 609-735, South Korea;6. Department of Dyeing and Finishing, Kyungpook National University, Daegu 702-701, South Korea;7. Department of Chemical Engineering, Dankook University, Chungnam 330-714, South Korea;8. Department of Chemistry, Korea Advanced Institute of Science and Technology, Taejon 305-701, South Korea;9. Polymer Chemistry Laboratory, College of General Education, Kyungil University, Kyungsangbuk-Do, Kyungsan 712-701, South Korea;1. Department of Chemistry, Faculty of Sciences, UNESP - São Paulo State University, 17033-360, Bauru, São Paulo, Brazil;2. Department of Chemistry, State University of Londrina (UEL), 86051-990, Londrina, PR, Brazil;1. Graduate Program on Materials Science and Engineering (PGMAT), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil;2. Department of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil;3. Department of Materials and Ceramic Engineering (CICECO), University of Aveiro, 3810 Aveiro, Portugal;1. Department of Chemistry, University of Torino, via P. Giuria 5, 10125 Torino, Italy;2. Department of Molecular Biotechnology and Health Sciences, University of Torino, via P. Giuria 5, 10125 Torino, Italy;1. Rare Earth Research Centre, Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia;2. Centre of Excellence for Advanced Research in Fluid Flow, Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia |
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| Abstract: | Poly(2-ethynyl-N-hexylpyridinium bromide) and poly(2-ethynyl-N-hexylpyridinium iodide) were synthesized by the direct polymerization of 2-ethynylpyridine and the corresponding n-hexyl halides without any additional initiator or catalyst under mild reaction condition. The polymerization proceeded well to give high yield of polymer. The polymer structures were characterized to have the conjugated polymer backbone system having N-hexylpyridyl moieties. The photoluminescence spectra of poly(2-ethynyl-N-hexylpyridinium bromide) and poly(2-ethynyl-N-hexylpyridinium iodide) showed that the photoluminescence peaks are located at 603 and 611 nm corresponding to the photon energy of 2.06 and 2.03 eV, respectively. The electrochemical properties of the resulting polymers were also measured and discussed. |
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