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Elaboration and study of the new copolymer based on vinylcarbazole and Stilbene (VK-Stilbene): Correlation structure-proprieties. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Bhagavathi Kandy S, Simon GP, Cheng W, Zank J, Saito K, Bhattacharyya AR. Effect of Organic Modification on Multiwalled Carbon Nanotube Dispersions in Highly Concentrated Emulsions. ACS OMEGA 2019; 4:6647-6659. [PMID: 31459790 PMCID: PMC6648309 DOI: 10.1021/acsomega.8b03179] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/20/2019] [Indexed: 06/10/2023]
Abstract
Highly concentrated water-in-oil emulsions incorporating multiwalled carbon nanotubes (MWCNTs) are prepared. Homogeneous and selective dispersions of MWCNTs throughout the oil phase of the emulsions are investigated. The practical insolubility of carbon nanotubes (CNTs) in aqueous and organic media necessitates the disentanglement of CNT "agglomerates" through the utilization of functionalized CNTs. The design and synthesis of two tetra-alkylated pyrene derivatives, namely, 1,3,6,8-tetra(oct-1-yn-1-yl)pyrene (TOPy) and 1,3,6,8-tetra(dodec-1-yn-1-yl)pyrene (TDPy), for the noncovalent organic modification of MWCNTs are reported. The modifier molecules are designed in such a manner that they facilitate an improved dispersion of individualized MWCNTs in the continuous-oil phase of the highly concentrated emulsion (HCE). Transmission electron microscopic analyses suggest that the alkylated pyrene molecules are adsorbed on the MWCNT surface, and their adsorption eventually results in the debundling of MWCNT agglomerates. Fourier transform infrared, Raman, and fluorescence spectroscopic analyses confirm the π-π interaction between the alkylated pyrene molecules and MWCNTs. The noncovalent modification significantly improves the effective debundling and selective dispersion of MWCNTs in HCEs.
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Affiliation(s)
- Sharu Bhagavathi Kandy
- IITB-Monash
Research Academy and Department of Metallurgical Engineering and
Materials Science, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
- Department
of Thermal and Energy Engineering, School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamilnadu 632014, India
| | - George P. Simon
- Department of Materials Science and Engineering, Department of Chemical
Engineering, and School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Wenlong Cheng
- Department of Materials Science and Engineering, Department of Chemical
Engineering, and School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Johann Zank
- Orica Mining
Services, George Booth
Drive, Kurri Kurri, New South
Wales 2327, Australia
| | - Kei Saito
- Department of Materials Science and Engineering, Department of Chemical
Engineering, and School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Arup R. Bhattacharyya
- IITB-Monash
Research Academy and Department of Metallurgical Engineering and
Materials Science, Indian Institute of Technology
Bombay, Powai, Mumbai 400076, India
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Abstract
A comprehensive overview of organic semiconductor crystals is provided, including the physicochemical features, the control of crystallization and the device physics.
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Affiliation(s)
- Chengliang Wang
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074
- China
- Wuhan National Laboratory for Optoelectronics (WNLO)
| | - Huanli Dong
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Organic Solids
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Lang Jiang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Organic Solids
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Wenping Hu
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
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