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Synthesis of PVDF/MWCNT nanocomplex microfiltration membrane via atom transfer radical addition (ATRA) with enhanced fouling performance. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116860] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2
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Guo L, Liu Y, Dou J, Huang Q, Lei Y, Chen J, Wen Y, Li Y, Zhang X, Wei Y. Highly efficient removal of Eu3+ ions using carbon nanotubes-based polymer composites synthesized from the combination of Diels-Alder and multicomponent reactions. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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3
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Functionalization of carbon nanotubes by combination of controlled radical polymerization and "grafting to" method. Adv Colloid Interface Sci 2020; 278:102126. [PMID: 32114292 DOI: 10.1016/j.cis.2020.102126] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 02/13/2020] [Accepted: 02/21/2020] [Indexed: 12/25/2022]
Abstract
This paper reviews the recent advances in non-covalent and covalent tethering of small molecules and polymer chains onto carbon nanotube (CNT) and its derivatives. The functionalized CNT has recently attracted great attention because of an increasing number of its potential applications. In non-covalent functionalization of CNT, the sp2-hybridized network plays a crucial role. The non-covalent grafting of small molecules and polymers can mainly be carried out through hydrogen bonding and π-stacking interactions. In covalent functionalization of CNT, condensation, cycloaddition, and addition reactions play a key role. Polymer modification has been reported by using three main methods of "grafting from", "grafting through", and also "grafting to". The "grafting from" and "grafting through" rely on propagation of polymer chains in the presence of CNT modified with initiator and double bond moieties, respectively. In "grafting to" method, which is the main aim of this review, the pre-fabricated polymer chains are mainly grafted onto the surface using coupling reactions. The coupling reactions are used for grafting pre-fabricated polymer chains and also small molecules onto CNT. Recent studies on grafting polymer chains onto CNT via "grafting to" method have focused on the pre-fabricated polymer chains by conventional and controlled radical polymerization (CRP) methods. CRP includes reversible activation, atom transfer, degenerative (exchange) chain transfer, and reversible chain transfer mechanisms, and could result in polymer-grafted CNT with narrow polydispersity index of the grafted polymer chains. Based on the mentioned mechanisms, nitroxide-mediated polymerization, atom transfer radical polymerization, and reversible addition-fragmentation chain transfer are known as the three commonly used CRP methods. Such polymer-modified CNT has lots of applications in batteries, biomedical fields, sensors, filtration, solar cells, etc.
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Pal S, Chatterjee T, Naskar K. Temperature‐triggered three‐dimensional network formation in graphene–polybutadiene nanocomposite. J Appl Polym Sci 2019. [DOI: 10.1002/app.48209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sanjay Pal
- Rubber Technology CentreIndian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Tuhin Chatterjee
- Rubber Technology CentreIndian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Kinsuk Naskar
- Rubber Technology CentreIndian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
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Handique J, Dolui SK. A thermally remendable multiwalled carbon nanotube/epoxy composites via Diels-Alder bonding. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1804-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Cao R, Wang Y, Chen S, Han N, Liu H, Zhang X. Multiresponsive Shape-Stabilized Hexadecyl Acrylate-Grafted Graphene as a Phase Change Material with Enhanced Thermal and Electrical Conductivities. ACS APPLIED MATERIALS & INTERFACES 2019; 11:8982-8991. [PMID: 30702860 DOI: 10.1021/acsami.8b18282] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A phase change material (PCM) essentially making up hexadecyl acrylate-grafted graphene (HDA- g-GN) was fabricated via a solvent-free Diels-Alder (DA) reaction. The novel material exhibits multiresponsive, enhanced thermal and electrical conductivities and valid thermal enthalpy. In addition, the optimum DA reaction conditions were explored. A variety of characterization techniques were used to study the thermal, crystalline, and structural properties of HDA- g-GN. The melting and crystallizing enthalpies of HDA- g-GN were as high as 57 and 55 J/g, respectively. Furthermore, the melting and freezing points of HDA- g-GN were 29.5 and 32.7 °C, respectively. The thermal conductivity of HDA- g-GN reached 3.957 W/(m K), which is well above that of HDA itself and the previously reported PCMs. HDA- g-GN exhibited an excellent electric conductivity of 219 S/m. Compared to HDA, the crystalline activation energy of HDA- g-GN decreased from 397 to 278 kJ/mol (Kissinger model) and 373 to 259 kJ/mol (Ozawa model). Moreover, HDA- g-GN exhibited excellent thermal stability, shape stability, and thermal reliability. More importantly, HDA- g-GN can be employed to realize high-performance light-to-thermal and electron-to-thermal energy conversion and storage, which provides wide application prospects in energy-saving buildings, battery thermal management system, bioimaging, biomedical devices, as well as real-time and time-resolved applications.
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Affiliation(s)
- Ruirui Cao
- State Key Laboratory of Separation Membranes and Membrane Processes , Tianjin 300387 , China
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology , Tianjin 300387 , China
- School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| | - Yuzhou Wang
- State Key Laboratory of Separation Membranes and Membrane Processes , Tianjin 300387 , China
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology , Tianjin 300387 , China
- School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| | - Sai Chen
- State Key Laboratory of Separation Membranes and Membrane Processes , Tianjin 300387 , China
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology , Tianjin 300387 , China
- School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| | - Na Han
- State Key Laboratory of Separation Membranes and Membrane Processes , Tianjin 300387 , China
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology , Tianjin 300387 , China
- School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| | - Haihui Liu
- State Key Laboratory of Separation Membranes and Membrane Processes , Tianjin 300387 , China
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology , Tianjin 300387 , China
- School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| | - Xingxiang Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes , Tianjin 300387 , China
- Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology , Tianjin 300387 , China
- School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
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Synthesis of Poly(methyl methacrylate) Grafted Multiwalled Carbon Nanotubes via a Combination of RAFT and Alkyne-Azide Click Reaction. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030603] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An efficient synthesis route was developed for the preparation of multiwalled carbon nanotube (MWCNT) nanohybrids using azide-terminated poly(methyl methacrylate) (PMMA) via a combination of reversible addition fragmentation chain transfer (RAFT) and the click reaction. A novel azido-functionalized chain transfer agent (DMP-N3) was prepared and subsequently employed to mediate the RAFT polymerizations of methyl methacrylate (MMA). The RAFT polymerizations exhibited first-order kinetics and a linear molecular weight dependence with the conversion. The kinetic results show that the grafting percentage of PMMA on the MWCNTs surface grows along with the increase of the reaction time. Even at 50 °C, the grafting rate of azide-terminated PMMA is comparatively fast in the course of the click reaction, with the alkyne groups adhered to MWCNTs in less than 24 h. The successful functionalization of PMMA onto MWCNT was proved by FTIR, while TGA was employed to calculate the grafting degree of PMMA chains (the highest GP = 21.9%). Compared with the pristine MWCNTs, a thicker diameter of the MWCNTs-g-PMMA was observed by TEM, which confirmed the grafted PMMA chain to the surface of nanotubes. Therefore, the MWCNTs-g-PMMA could be dispersed and stably suspended in water.
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8
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Fabrication of Self-Healable Magnetic Nanocomposites via Diels−Alder Click Chemistry. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030506] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In this study, we report a novel approach to fabricate an organic/inorganic magnetic hybrid system capable of self-healing, wherein a polycaprolactone-poly(furfuryl glycidyl ether) copolymer (PCLF) serving as the structure template was first synthesized, followed by the incorporation of iron oxide nanoparticles-decorated multiwalled carbon nanotubes (IONPs-MWCNTs) and 1,1′-(methylenedi-4,1-phenylene)bismaleimide (BMI) into the polymer matrix to form a covalently crosslinked hybrid network via a Diels−Alder (DA) reaction. For this system, the reactive combination of diene and dienophile from furan/maleimide, MWCNT/furan, and MWCNT/maleimide could facilely induce multiple DA reactions that imparted a versatile route to efficiently introduce IONPs-MWCNTs into the organic polymer hosts, resulting in a uniform distribution of IONPs-MWCNTs that led to a hybrid system with superparamagnetic properties. Beside the magnetic behavior, such material synergistically exhibited a superior ability for healing scratch defects via a retro-DA reaction. Therefore, this crosslinked PCLF/BMI/IONPs-MWCNTs hybrid system which exhibits multifunctional properties including superparamagnetic behavior and self-repairability can serve as an intelligent material for developing advanced electromagnetic applications.
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Covalent functionalization of multi-walled carbon nanotubes with imidazolium-based poly(ionic liquid)s by Diels–Alder “click” reaction. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.03.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Menon A, Madras G, Bose S. Ultrafast Self-Healable Interfaces in Polyurethane Nanocomposites Designed Using Diels-Alder "Click" as an Efficient Microwave Absorber. ACS OMEGA 2018; 3:1137-1146. [PMID: 31457956 PMCID: PMC6641351 DOI: 10.1021/acsomega.7b01845] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 01/17/2018] [Indexed: 05/04/2023]
Abstract
In the recent times, multifunctional materials have attracted immense interest. Self-healing polymers are in great demand in almost every coating application. With an increase in electromagnetic (EM) pollution, curbing the same has become an urgent necessity. Lightweight coatings and conducting polymeric materials are being highly researched upon in this regard, and combining these properties with self-healing systems would open new avenues in EM interference (EMI) shielding (specifically in the microwave frequency domain) applications. In the current study, a novel approach toward the development of microwave shielding materials capable of self-healing through microwave heating has been attempted. A covalently cross-linked material was developed using Diels-Alder (DA) chemistry, which shows self-healing properties when stimulated by heating. Herein, reduced graphene oxide grafted with magnetite nanoparticles (rGO/Fe3O4) was covalently cross-linked to thermoplastic polyurethane using DA chemistry. The addition of multiwalled carbon nanotubes into these nanocomposites led to exceptional EM wave shielding and self-healing properties through a synergistic effect. The synergism led to exceptional EMI shielding of -36 dB, primarily through absorption in the microwave region of the EM spectrum. When used in the form of thin coatings of about 1 mm in thickness, the shielding value reached -28 dB, manifesting in more than 99% attenuation of EM waves through absorption. The material was also found to be capable of healing scratches or cuts through microwave irradiation.
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Affiliation(s)
- Aishwarya
V. Menon
- Center for Nano Science
and Engineering, Department of Chemical Engineering, and Department of
Materials Engineering, Indian Institute
of Science, Bangalore 560012, India
| | - Giridhar Madras
- Center for Nano Science
and Engineering, Department of Chemical Engineering, and Department of
Materials Engineering, Indian Institute
of Science, Bangalore 560012, India
| | - Suryasarathi Bose
- Center for Nano Science
and Engineering, Department of Chemical Engineering, and Department of
Materials Engineering, Indian Institute
of Science, Bangalore 560012, India
- E-mail: (S.B.)
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Le CMQ, Cao XT, Lim KT. Ultrasound-promoted direct functionalization of multi-walled carbon nanotubes in water via Diels-Alder "click chemistry". ULTRASONICS SONOCHEMISTRY 2017; 39:321-329. [PMID: 28732952 DOI: 10.1016/j.ultsonch.2017.04.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/27/2017] [Accepted: 04/27/2017] [Indexed: 06/07/2023]
Abstract
A facile and environmentally friendly strategy for grafting polymers onto the surface of multi-walled carbon nanotubes (CNTs) was demonstrated by Diels-Alder "click chemistry". Firstly, the copolymers of poly(styrene-alt-maleic anhydride) (PSM) were prepared by the reversible addition-fragmentation chain transfer (RAFT) polymerization and subsequently functionalized with furfuryl amine to introduce anchoring groups. The copolymers were then grafted on CNTs via the Diels-Alder reaction in water through a conventional heating-stirring route and ultrasound-assisted method. The obtained nanocomposite materials were characterized by thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, Raman spectroscopy and transmission electron microscopy. The results indicated that the reaction rate under ultrasound irradiation was accelerated about 12 times than the one under the conventional heating-stirring condition without losing the grafting efficiency. The direct functionalization of CNTs formed a stably dispersed solution in water, promising a green and effective method for industrial process.
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Affiliation(s)
- Cuong M Q Le
- Department of Display Engineering, Pukyong National University, Busan, South Korea
| | - Xuan Thang Cao
- Department of Display Engineering, Pukyong National University, Busan, South Korea
| | - Kwon Taek Lim
- Department of Display Engineering, Pukyong National University, Busan, South Korea.
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Abstract
High adhesion hydrophobic surfaces with high apparent contact angles were achieved by a convenient approach.
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