1
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Kumar YR, Deshmukh K, Kadlec J, Pasha SKK. Dielectric properties of
nano‐MMT
and graphene quantum dots embedded poly (vinylidene fluoride‐co‐hexafluoropropylene) nanocomposite films. J Appl Polym Sci 2023. [DOI: 10.1002/app.53724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Y. Ravi Kumar
- Functional Nanomaterials and Polymer Nanocomposite Laboratory, Department of Physics VIT‐AP University Amaravati India
| | - Kalim Deshmukh
- New Technologies—Research Center University of West Bohemia Plzeň Czech Republic
| | - Jaroslav Kadlec
- New Technologies—Research Center University of West Bohemia Plzeň Czech Republic
| | - S. K. Khadheer Pasha
- Functional Nanomaterials and Polymer Nanocomposite Laboratory, Department of Physics VIT‐AP University Amaravati India
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2
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da Silva GR, dos Santos AL, Soares AC, dos Santos MC, dos Santos SC, Ţălu Ş, Rodrigues de Lima V, Bagnato VS, Sanches EA, Inada NM. PLGA-PVA-PEG Single Emulsion Method as a Candidate for Aminolevulinic Acid (5-ALA) Encapsulation: Laboratory Scaling up and Stability Evaluation. Molecules 2022; 27:molecules27186029. [PMID: 36144765 PMCID: PMC9506276 DOI: 10.3390/molecules27186029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
One of the most widely used molecules used for photodynamic therapy (PDT) is 5-aminolevulinic acid (5-ALA), a precursor in the synthesis of tetrapyrroles such as chlorophyll and heme. The 5-ALA skin permeation is considerably reduced due to its hydrophilic characteristics, decreasing its local bioavailability and therapeutic effect. For this reason, five different systems containing polymeric particles of poly [D, L–lactic–co–glycolic acid (PLGA)] were developed to encapsulate 5-ALA based on single and double emulsions methodology. All systems were standardized (according to the volume of reagents and mass of pharmaceutical ingredients) and compared in terms of laboratory scaling up, particle formation and stability over time. UV-VIS spectroscopy revealed that particle absorption/adsorption of 5-ALA was dependent on the method of synthesis. Different size distribution was observed by DLS and NTA techniques, revealing that 5-ALA increased the particle size. The contact angle evaluation showed that the system hydrophobicity was dependent on the surfactant and the 5-ALA contribution. The FTIR results indicated that the type of emulsion influenced the particle formation, as well as allowing PEG functionalization and interaction with 5-ALA. According to the 1H-NMR results, the 5-ALA reduced the T1 values of polyvinyl alcohol (PVA) and PLGA in the double emulsion systems due to the decrease in molecular packing in the hydrophobic region. The results indicated that the system formed by single emulsion containing the combination PVA–PEG presented greater stability with less influence from 5-ALA. This system is a promising candidate to successfully encapsulate 5-ALA and achieve good performance and specificity for in vitro skin cancer treatment.
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Affiliation(s)
- Geisiane Rosa da Silva
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Paulo 13560-110, Brazil
| | | | - Andrey Coatrini Soares
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Paulo 13560-110, Brazil
- Embrapa Instrumentation, São Paulo 13560-110, Brazil
| | | | - Sandra Cruz dos Santos
- Chemical and Food School, Federal University of Rio Grande (FURG), Rio Grande 96203-000, Brazil
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, 15 Constantin Daicoviciu St., 400020 Cluj-Napoca, Romania
- Correspondence: or
| | - Vânia Rodrigues de Lima
- Chemical and Food School, Federal University of Rio Grande (FURG), Rio Grande 96203-000, Brazil
| | | | - Edgar Aparecido Sanches
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, Brazil
| | - Natalia Mayumi Inada
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Paulo 13560-110, Brazil
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3
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Graphene Oxide/Polyvinyl Alcohol–Formaldehyde Composite Loaded by Pb Ions: Structure and Electrochemical Performance. Polymers (Basel) 2022; 14:polym14112303. [PMID: 35683975 PMCID: PMC9183114 DOI: 10.3390/polym14112303] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 01/27/2023] Open
Abstract
An immobilization of graphene oxide (GO) into a matrix of polyvinyl formaldehyde (PVF) foam as an eco-friendly, low cost, superior, and easily recovered sorbent of Pb ions from an aqueous solution is described. The relationships between the structure and electrochemical properties of PVF/GO composite with implanted Pb ions are discussed for the first time. The number of alcohol groups decreased by 41% and 63% for PVF/GO and the PVF/GO/Pb composite, respectively, compared to pure PVF. This means that chemical bonds are formed between the Pb ions and the PVF/GO composite based on the OH groups. This bond formation causes an increase in the Tg values attributed to the formation of a strong surface complexation between adjacent layers of PVF/GO composite. The conductivity increases by about 2.8 orders of magnitude compared to the values of the PVF/GO/Pb composite compared to the PVF. This means the presence of Pb ions is the main factor for enhancing the conductivity where the conduction mechanism is changed from ionic for PVF to electronic conduction for PVF/GO and PVF/GO/Pb.
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4
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Lan L, Li F, Li W, Chen R, Xiong Z, He Y, Ouedraogo NAN, Ai B, Tao L, Sun K, Chen S. Highly Skin-Compliant Polymeric Electrodes with Synergistically Boosted Conductivity toward Wearable Health Monitoring. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20113-20121. [PMID: 35467822 DOI: 10.1021/acsami.2c03596] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Despite rapid advances in stretchable electrodes, successful examples of polymeric dry electrodes are limited. Especially in wearable health monitoring, it is urgent to develop biocompatible electrodes that possess intrinsic skin-compliance while maintaining a high conductivity. Herein, a strategy is demonstrated to synergistically regulate the interpenetration behavior and molecular crystallinity in the blend via embedding a novel double network, i.e. physically cross-linked poly(vinyl alcohol) (PVA) and covalently cross-linked polyethylene glycol diacrylate (PEGDA), into the PEDOT:PSS matrix. The favorable interaction energy between PVA and PEGDA enables well-distributed microstructure with finer phase separation in the film, affording a low Young's modulus of 16 MPa with a high conductivity of 442 S/cm. Consequently, the optimal polymeric electrode can acquire high-quality electromyogram (EMG) and electrocardiogram (ECG) signals. Our results provide a feasible approach for producing skin-compliant polymeric electrodes toward next-generation health monitors.
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Affiliation(s)
- Linkai Lan
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Feng Li
- Laboratory of Advanced Materials, Fudan University, 220 Handan, Shanghai 200433, People's Republic of China
| | - Wen Li
- Key Laboratory of Power Transmission Equipment and System Security and New Technology, School of Electrical Engineering and State, Chongqing University, Chongqing 400044, People's Republic of China
| | - Rui Chen
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Zhuang Xiong
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yongjie He
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Nabonswendé Aïda Nadège Ouedraogo
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Bin Ai
- Chongqing Key Laboratory of Bio perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Luqi Tao
- Key Laboratory of Power Transmission Equipment and System Security and New Technology, School of Electrical Engineering and State, Chongqing University, Chongqing 400044, People's Republic of China
| | - Kuan Sun
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Shanshan Chen
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
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5
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Mathela S, Kumar S, Singh PK, Chandra Singh R, Shukla PK, Singh V, Noor IM, Kakroo S, Madkhli AY, Tomar R. Ionic liquid dispersed highly conducting polymer electrolyte for supercapacitor application: Current scenario and prospects “ICSEM 2021”. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221099432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ionic liquid (IL) is now being considered as a novel contender in the development of highly conducting polymer electrolytes rather than a solvent. It has a significant impact on the electrochemical performance of polymer electrolytes. This study emphasizes the significance of low viscosity IL dispersion within a polymer (PVA) matrix. The electrical, structural and photoelectrochemical properties of the IL-doped polymer electrolyte are discussed in detail. These highly conducting IL doped solid polymer electrolytes show promise towards the development of highly efficient Supercapacitors.
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Affiliation(s)
- Shreya Mathela
- Department of Chemistry and Biochemistry, Sharda University, Greater Noida, India
- Asbury Lab, Department of Chemistry, The Pennsylvania State University, University Park, PA, USA
| | - Sushant Kumar
- COE on Solar Cells and Renewable Energy, Department of Physics, Sharda University, Greater Noida, India
| | - Pramod K Singh
- COE on Solar Cells and Renewable Energy, Department of Physics, Sharda University, Greater Noida, India
| | - Ram Chandra Singh
- COE on Solar Cells and Renewable Energy, Department of Physics, Sharda University, Greater Noida, India
| | - PK Shukla
- Vindhya Institute of Technology and Science, Madhya Pradesh, India
| | - Vijay Singh
- Department of Chemical Engineering, Konkuk University, Seoul, South Korea
| | - IM Noor
- Physics Division, Centre of Foundation, Studies for Agricultural Science, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Sunanda Kakroo
- Department of Physics, College of Science (Female Campus), Mahilya Jazan University, Saudi Arabia
| | - Aysh Y Madkhli
- Department of Physics, College of Science (Female Campus), Mahilya Jazan University, Saudi Arabia
| | - Richa Tomar
- Department of Chemistry and Biochemistry, Sharda University, Greater Noida, India
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6
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Elhamid M. Abd Elhamid A, Shawkey H, A.I. Khalil A, M. Azzouz I. Graphene Functionalization towards Developing Superior Supercapacitors Performance. SUPERCAPACITORS FOR THE NEXT GENERATION 2022. [DOI: 10.5772/intechopen.98354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Graphene is known as the miracle material of the 21st century for the wide band of participating applications and epic properties. Unlike the CVD monolayer graphene, Reduced graphene oxide (RGO) is a commercial form with mass production accessibility via numerous numbers of methods in preparation and reduction terms. Such RGO form showed exceptional combability in supercapacitors (SCs) where RGO is participated to promote flexibility, lifetime and performance. The chapter will illustrate 4 critical milestones of using graphene derivatives for achieving SC’s superior performance. The first is using oxidized graphene (GO) blind with polymer for super dielectric spacer. The other three types are dealing with electrolytic SCs based on RGO. Polyaniline (PANI) was grown on GO for exceptionally stable SCs of 100% retention. Silver decoration of RGO was used for all-solid-state printable device. The solid-state gel electrolyte was developed by adding GO to promote current rating. Finally, laser reduced graphene is presented as a one-step and versatile technique for micropatterning processing. The RGO reduction was demonstrated from a laser GO interaction perspective according to two selected key parameters; wavelength and pulse duration.
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7
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Facile synthesis of highly flexible sodium ion conducting polyvinyl alcohol (PVA)-polyethylene glycol (PEG) blend incorporating reduced graphene-oxide (rGO) composites for electrochemical devices application. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02892-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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8
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Dhamodharan D, Ghoderao PP, Dhinakaran V, Mubarak S, Divakaran N, Byun HS. A review on graphene oxide effect in energy storage devices. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.10.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Design of Promising Green Cation-Exchange-Membranes-Based Sulfonated PVA and Doped with Nano Sulfated Zirconia for Direct Borohydride Fuel Cells. Polymers (Basel) 2021; 13:polym13234205. [PMID: 34883705 PMCID: PMC8659521 DOI: 10.3390/polym13234205] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/19/2021] [Accepted: 11/21/2021] [Indexed: 11/16/2022] Open
Abstract
The direct borohydride fuel cell (DBFC) is a low-temperature fuel cell that requires the development of affordable price and efficient proton exchange membranes for commercial purposes. In this context, super-acidic sulfated zirconia (SO4ZrO2) was embedded into a cheap and environmentally friendly binary polymer blend, developed from poly(vinyl alcohol) (PVA) and iota carrageenan (IC). The percentage of SO4ZrO2 ranged between 1 and 7.5 wt.% in the polymeric matrix. The study findings revealed that the composite membranes’ physicochemical features improved by adding increasing amounts of SO4ZrO2. In addition, there was a decrease in the permeability and swelling ratio of the borohydride membranes as the SO4ZrO2 weight% increased. Interestingly, the power density increased to 76 mW cm−2 at 150 mA cm−2, with 7.5 wt.% SO4ZrO2, which is very close to that of Nafion117 (91 mW cm−2). This apparent selectivity, combined with the low cost of the eco-friendly fabricated membranes, points out that DBFC has promising future applications.
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10
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Hu F, Lu H, Ye Z, Zhang S, Wang W, Gao L. Slow-release lubrication of artificial joints using self-healing polyvinyl alcohol/polyethylene glycol/ graphene oxide hydrogel. J Mech Behav Biomed Mater 2021; 124:104807. [PMID: 34492404 DOI: 10.1016/j.jmbbm.2021.104807] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/28/2022]
Abstract
New fabrication methods and lubrication materials must be developed to improve the lubrication performance of artificial joints and increase the lubrication duration. Herein, a novel polyvinyl alcohol/polyethylene glycol/graphene oxide (PVA/PEG/GO) hydrogel was prepared by a physical cross-linking method, and then the hydrogel and its sustained-release solution were used as lubricant for friction evaluation. The results demonstrated that the slow-release gel solution has good lubrication performance, and coefficient of friction (COF) is only 0.04, which is much lower than the COF of distilled water (about 0.08) under the same conditions. The structure characterization results revealed that no new materials are formed in the gel. The results of thermogravimetric analyses and differential scanning calorimetry demonstrated that the addition of GO may improve the network crosslinking structure of the PVA/PEG hydrogel and improve its mechanical strength. In addition, PVA/PEG/GO hydrogel has superior self-healing function. The self-healing hydrogel did not break again after being pulled under 200 G of weights. The PVA/PEG/GO hydrogel with excellent slow-release lubricating performance and self-healing properties provides a novel candidate for design of long-term lubricating artificial joints, and is expected to promote the progress of artificial joint lubrication applications.
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Affiliation(s)
- Feng Hu
- Group of Mechanical and Biomedical Engineering, Xi'an Key Laboratory of Modern Intelligent Textile Equipment, College of Mechanical and Electronic Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, PR China
| | - Hailin Lu
- Group of Mechanical and Biomedical Engineering, Xi'an Key Laboratory of Modern Intelligent Textile Equipment, College of Mechanical and Electronic Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, PR China.
| | - Zishuo Ye
- Group of Mechanical and Biomedical Engineering, Xi'an Key Laboratory of Modern Intelligent Textile Equipment, College of Mechanical and Electronic Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, PR China
| | - Shoujing Zhang
- Group of Mechanical and Biomedical Engineering, Xi'an Key Laboratory of Modern Intelligent Textile Equipment, College of Mechanical and Electronic Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, PR China
| | - Wenbo Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, PR China.
| | - Li Gao
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China.
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11
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Organic-Inorganic Novel Green Cation Exchange Membranes for Direct Methanol Fuel Cells. ENERGIES 2021. [DOI: 10.3390/en14154686] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Commercializing direct methanol fuel cells (DMFC) demands cost-effective cation exchange membranes. Herein, a polymeric blend is prepared from low-cost and eco-friendly polymers (i.e., iota carrageenan (IC) and polyvinyl alcohol (PVA)). Zirconium phosphate (ZrPO4) was prepared from the impregnation–calcination method and characterized by energy dispersive X-ray analysis (EDX map), X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM), then incorporated as a bonding and doping agent into the polymer blend with different concentrations. The new fabricated membranes were characterized by SEM, FTIR, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and XRD. The results revealed that the membranes’ physicochemical properties (oxidative stability, tensile strength) are enhanced with increasing doping addition, and they realized higher results than Nafion 117 because of increasing numbers of hydrogen bonds fabricated between the polymers and zirconium phosphate. Additionally, the methanol permeability was decreased in the membranes with increasing zirconium phosphate content. The optimum membrane with IC/SPVA/ZrPO4-7.5 provided higher selectivity than Nafion 117. Therefore, it can be an effective cation exchange membrane for DMFCs applications.
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Gouda MH, Elessawy NA, Toghan A. Development of effectively costed and performant novel cation exchange ceramic nanocomposite membrane based sulfonated PVA for direct borohydride fuel cells. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.05.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Thangamani GJ, Pasha SKK. Titanium dioxide (TiO 2) nanoparticles reinforced polyvinyl formal (PVF) nanocomposites as chemiresistive gas sensor for sulfur dioxide (SO 2) monitoring. CHEMOSPHERE 2021; 275:129960. [PMID: 33640745 DOI: 10.1016/j.chemosphere.2021.129960] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
The present work reports the preparation of polyvinyl formal (PVF)/Titanium dioxide (TiO2) nanocomposite films using a solution casting method followed by the characterization of the synthesized PVF/TiO2 nanocomposite films using various analytical techniques namely FTIR, XRD, UV-vis, SEM and TGA analysis. The results obtained from different analyses confirmed that the TiO2 NPs was fine dispersed within the PVF matrix and there exists well compatibility among the polymer matrix and the nanofiller. The pristine TiO2 NPs based fabricated chemiresistive sensor exhibits the maximum sensitivity of 50.25% at 370 °C where as PVF/TiO2 nanocomposite sensor showed the enhanced sensitivity of 83.75% at a relatively low operating temperature of 150 °C towards 600 ppm sulfur dioxide (SO2) gas. The 25 wt% PVF/TiO2 nanocomposite film sensor exhibited good sensitivity (∼83.75%), selectivity, rapid response time (66 s)/recovery time (107 s), and long-term stability of 60 days for SO2 gas detection. The fabricated PVF/TiO2 nanocomposite film sensors in our work possesses the advantages of low power consumption, cost-effective, and distinguished sensing abilities for SO2 detection makes it possible for potential applications. Thus, the fabricated chemiresistive sensors based on TiO2 NPs reinforced PVF nanocomposites films are evaluated and experimental results to show an excellent behavior towards SO2 gas detection for industrial processes control and environmental monitoring applications.
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Affiliation(s)
- G J Thangamani
- Department of Physics, School of Advanced Sciences, VIT University, Vellore, 632014, Tamil Nadu, India
| | - S K Khadheer Pasha
- Department of Physics, VIT-AP University, Amaravati, Guntur, 522501, Andhra Pradesh, India.
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14
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Demirelli K, Abubakar AM, Tuncer H, Salih B. Preparation, characterization and electrical behaviors of greenish single-chain polymeric molecule-via intramolecular ball type cobalt phthalocyanines/ graphite oxide composites. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Gouda MH, Elessawy NA, Toghan A. Novel Crosslinked Sulfonated PVA/PEO Doped with Phosphated Titanium Oxide Nanotubes as Effective Green Cation Exchange Membrane for Direct Borohydride Fuel Cells. Polymers (Basel) 2021; 13:polym13132050. [PMID: 34201464 PMCID: PMC8271656 DOI: 10.3390/polym13132050] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/27/2021] [Accepted: 06/07/2021] [Indexed: 11/16/2022] Open
Abstract
A direct borohydride fuel cell (DBFC) is a type of low temperature fuel cell which requires efficient and low cost proton exchange membranes in order to commercialize it. Herein, a binary polymer blend was formulated from inexpensive and ecofriendly polymers, namely polyethylene oxide (PEO) and poly vinyl alcohol (PVA). Phosphated titanium oxide nanotube (PO4TiO2) was synthesized from a simple impregnation-calcination method and later embedded for the first time as a doping agent into this polymeric matrix with a percentage of 1-3 wt%. The membranes' physicochemical properties such as oxidative stability and tensile strength were enhanced with increasing doping addition, while the borohydride permeability, water uptake, and swelling ratio of the membranes decreased with increasing PO4TiO2 weight percentage. However, the ionic conductivity and power density increased to 28 mS cm-1 and 72 mWcm-2 respectively for the membrane with 3 wt% of PO4TiO2 which achieved approximately 99% oxidative stability and 40.3 MPa tensile strength, better than Nafion117 (92% RW and 25 MPa). The fabricated membrane with the optimum properties (PVA/PEO/PO4TiO2-3) achieved higher selectivity than Nafion117 and could be efficient as a proton exchange membrane in the development of green and low cost DBFCs.
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Affiliation(s)
- Marwa H. Gouda
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications City (SRTA-City), Alexandria 21934, Egypt;
| | - Noha A. Elessawy
- Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications City (SRTA-City), Alexandria 21934, Egypt
- Correspondence:
| | - Arafat Toghan
- Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt;
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
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Gouda MH, Konsowa AH, Farag HA, Elessawy NA, Tamer TM, Eldin MSM. Development novel eco-friendly proton exchange membranes doped with nano sulfated zirconia for direct methanol fuel cells. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02628-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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17
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Morphology, Dielectric and EMI Shielding Characteristics of Graphene Nanoplatelets, Montmorillonite Nanoclay and Titanium Dioxide Nanoparticles Reinforced Polyvinylidenefluoride Nanocomposites. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01869-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Synthesis of highly stable and dispersed silver nanoparticles/poly(vinyl alcohol-co-ethylene glycol)/poly(3-aminophenyl boronic acid) nanocomposite: Characterization and antibacterial, hemolytic and cytotoxicity studies. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.05.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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19
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Abd-Al Hussein ET, Hameed AM. Studying some Optical Properties of Polyethylene Glycol Doped with Al- Nanoparticles. MATERIALS SCIENCE FORUM 2020; 1002:104-113. [DOI: 10.4028/www.scientific.net/msf.1002.104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
This research aims to improve some optical properties of polyethylene glycol (PEG) by adding different weight percentages of aluminium nanoparticles )0, 2, 4, 6 and 8) % and for achieving a new composite material with improved characteristics. nanocomposite thin films were prepared by solution casting method with different weight percentages of Al nanoparticles. The samples were characterized by X-ray diffraction (XRD), FTIR and UV-visible spectrophotometer. FTIR-spectra of (PEG-Al) nanocomposite show various special bands of bending for groups (C=O, C–O, C–H, C-N, C-I). Optical microscopy images illustrate the morphology of surface for (PEG) composite. The optical properties measurement by using (UV–VIS) spectrophotometer at wavelength range )220 – 1100(nm were determined. Results show that the absorbance spectrum increased with increase the weight percentages of Al-nanoparticles and the values of absorption coefficient have increased as well as refractive index values increased with the addition of aluminium nanoparticle
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20
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Rani P, Ahamed B, Deshmukh K. Electromagnetic interference shielding properties of graphene
quantum‐dots
reinforced poly(vinyl alcohol)/polypyrrole blend nanocomposites. J Appl Polym Sci 2020. [DOI: 10.1002/app.49392] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Priyanka Rani
- Department of PhysicsB. S. Abdur Rahman Crescent Institute of Science and Technology Chennai India
| | - Basheer Ahamed
- Department of PhysicsB. S. Abdur Rahman Crescent Institute of Science and Technology Chennai India
| | - Kalim Deshmukh
- New Technologies—Research CentreUniversity of West Bohemia Plzeň Czech Republic
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21
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Deshmukh K, Pasha SKK. Room temperature ammonia sensing based on graphene oxide integrated flexible polyvinylidenefluoride/cerium oxide nanocomposite films. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1744011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Kalim Deshmukh
- New Technologies - Research Center, University of West Bohemia, Plzeň, Czech Republic
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22
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Ahmed J, Mulla M, Maniruzzaman M. Rheological and Dielectric Behavior of 3D-Printable Chitosan/Graphene Oxide Hydrogels. ACS Biomater Sci Eng 2020; 6:88-99. [PMID: 33463220 DOI: 10.1021/acsbiomaterials.9b00201] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The effect of concentration, temperature, and the addition of graphene oxide (GO) nanosheets on the rheological and dielectric behavior of chitosan (CS) solutions, which influences the formation of the blend materials for various applications including 3D printing and packaging, was studied. Among tested acid solutions, the rheological behavior of 1% CS in acetic and lactic acid solutions was found to be similar, whereas the hydrochloric acid solution showed an abnormal drop in the dynamic moduli. Oscillatory rheology confirmed a distinct gel point for the CS solutions at below 10 °C. Both the G' and G″ of the solutions increased with the loading concentrations of GO between 0.5 and 1%, and it marginally dropped at the loading concentration of 2%, which is consistent with AFM observation. The steady-shear flow data fitted the Carreau model. Dielectric property measurement further confirmed that both the dielectric constant, ε' and the loss factor, ε″ for the CS in hydrochloric acid solutions behaved differently from others. Addition of GO significantly improved both ε' and ε″, indicating an improvement in the dielectric properties of CS/GO solutions. The dispersion of GO into the CS matrix was assessed by measuring XRD, FTIR, and microscopy of the film prepared from the solutions. Furthermore, the inclusion of GO into CS solution containing pluronic F127 (F127) base for potential 3D printing application showed positive results in terms of the printing accuracy and shape fidelity of the printed objects (films and scaffolds). The optimized composition with homogeneous particle distribution indicated that up to ∼50 mg/mL GO concentration (w/v of F127 base) was suitable to print both films and scaffolds for potential biomedical applications.
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Affiliation(s)
- Jasim Ahmed
- Food and Nutrition Program, Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Mehrajfatema Mulla
- Food and Nutrition Program, Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Mohammed Maniruzzaman
- Department of Pharmacy (Chemistry), School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, United Kingdom
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23
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Mohanapriya MK, Deshmukh K, Kadlec J, Sadasivuni KK, Faisal M, Nambi Raj NA, Pasha SKK. Dynamic mechanical analysis and broadband electromagnetic interference shielding characteristics of poly (vinyl alcohol)-poly (4-styrenesulfonic acid)-titanium dioxide nanoparticles based tertiary nanocomposites. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2019.1695274] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- M. K. Mohanapriya
- Department of Physics, School of Advanced Sciences, VIT University, Vellore, India
| | - Kalim Deshmukh
- New Technologies- Research Center, University of West Bohemia, Plzeň, Czech Republic
| | - Jaroslav Kadlec
- New Technologies- Research Center, University of West Bohemia, Plzeň, Czech Republic
| | | | - Muhammad Faisal
- Department of Science and Humanities, PES Institute of Technology, South Campus, Bangalore, India
| | - N. A. Nambi Raj
- Department of Physics, School of Advanced Sciences, VIT University, Vellore, India
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24
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Alipoori S, Torkzadeh M, Moghadam MM, Mazinani S, Aboutalebi SH, Sharif F. Graphene oxide: An effective ionic conductivity promoter for phosphoric acid-doped poly (vinyl alcohol) gel electrolytes. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121908] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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25
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Abd Elhamid AEM, Shawkey H, Nada AA, Bechelany M. Anomalous dielectric constant value of graphene oxide/Polyvinyl alcohol thin film. SOLID STATE SCIENCES 2019; 94:28-34. [DOI: 10.1016/j.solidstatesciences.2019.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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26
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Sun T, Zou H, Zhou Y, Li R, Liang M, Chen Y. Achieving high-performance epoxy nanocomposites with trifunctional poly(oxypropylene)amines functionalized graphene oxide. HIGH PERFORM POLYM 2019. [DOI: 10.1177/0954008319832353] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In this article, two types of functional graphene oxide (GO) with amine-rich surface were synthesized through chemically grafting two different molecular chain length trifunctional poly(oxypropylene)amines T5000 and T403, which were named as T5000-GO and T403-GO, respectively. The functionalized GO was then added to epoxy (EP) resin. Fourier transform infrared spectra analysis confirmed successful chemical functionalization on GO. Both T403-GO and T5000-GO were tightly embedded in the EP, because the amine-rich surface of functionalized-GO could form covalent bonds with the EP matrix, thereby contributing to the enhancement of mechanical properties. Particularly, T5000-GO, which has longer grafting molecule chains, achieved better compatibility and dispersibility in the EP matrix, resulting in a better reinforcing efficiency in mechanical properties. For example, the T5000-GO/EP composites showed an incremental enhancement in tensile strength with increasing filler concentrations, whereas their T403-GO/EP counterparts failed to follow the same trend. Meanwhile, the T5000-GO/EP composites with only 0.1-wt% T5000-GO achieved a prominent increase in flexural strength (approximately 50%) and flexural modulus (approximately 26.8%), which were higher than those of T403-GO-filled counterparts. This work indicated that the compatibility and interphase between GO and EP could be designed by manipulating the length of grafting molecule chains, thereby providing a better understanding of the relationship between the structure and mechanical properties of the graphene/EP nanocomposites.
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Affiliation(s)
- Tong Sun
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China
| | - Huawei Zou
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China
| | - Ya Zhou
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China
| | - Rui Li
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China
| | - Mei Liang
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China
| | - Yang Chen
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China
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27
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Ponnamma D, Cabibihan JJ, Rajan M, Pethaiah SS, Deshmukh K, Gogoi JP, Pasha SKK, Ahamed MB, Krishnegowda J, Chandrashekar BN, Polu AR, Cheng C. Synthesis, optimization and applications of ZnO/polymer nanocomposites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:1210-1240. [PMID: 30813004 DOI: 10.1016/j.msec.2019.01.081] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 12/02/2018] [Accepted: 01/20/2019] [Indexed: 01/15/2023]
Abstract
Polymer composites have established an excellent position among the technologically essential materials because of their wide range of applications. An enormous research interest has been devoted to zinc oxide (ZnO) based polymer nanocomposites, due to their exceptional electrical, optical, thermal, mechanical, catalytic, and biomedical properties. This article provides a review of various polymer composites consisting of ZnO nanoparticles (NPs) as reinforcements, exhibiting excellent properties for applications such as the dielectric, sensing, piezoelectric, electromagnetic shielding, thermal conductivity and energy storage. The preparation methods of such composites including solution blending, in situ polymerization, and melt intercalation are also explained. The current challenges and potential applications of these composites are provided in order to guide future progress on the development of more promising materials. Finally, a detailed summary of the current trends in the field is presented to progressively show the future prospects for the development of ZnO containing polymer nanocomposite materials.
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Affiliation(s)
| | - John-John Cabibihan
- Mechanical and Industrial Engineering Department, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Mariappan Rajan
- Biomaterials in Medicinal Chemistry Laboratory, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
| | - S Sundar Pethaiah
- Gashubin Engineering Pvt Ltd, 8 New Industrial Road, 536200, Singapore
| | - Kalim Deshmukh
- Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600048, TN, India.
| | - Jyoti Prasad Gogoi
- Department of Physics, The Assam Kaziranga University, Jorhat 785006, India
| | - S K Khadheer Pasha
- Department of Physics, VIT-AP University, Amaravati Campus, Guntur 522501, Andhra Pradesh, India
| | - M Basheer Ahamed
- Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600048, TN, India
| | - Jagadish Krishnegowda
- Centre for Materials Science and Technology, Vijnana Bhavan, University of Mysore, Manasagangotri, Mysore 570006, India
| | - B N Chandrashekar
- Department of Materials Science and Engineering and Shenzhen Key Laboratory of Nanoimprint Technology, South University of Science and Technology, Shenzhen 518055, PR China
| | - Anji Reddy Polu
- Department of Physics, Vardhaman College of Engineering, Kacharam, Shamshabad, 501218 Hyderabad, Telangana, India
| | - Chun Cheng
- Department of Materials Science and Engineering and Shenzhen Key Laboratory of Nanoimprint Technology, South University of Science and Technology, Shenzhen 518055, PR China
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Investigation on Structural and Dielectric Properties of Silica Nanoparticles Incorporated Poly(Ethylene Oxide)/Poly(Vinyl Pyrrolidone) Blend Matrix Based Nanocomposites. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-1034-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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29
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Sadasivuni KK, Cabibihan JJ, Deshmukh K, Goutham S, Abubasha MK, Gogoi JP, Klemenoks I, Sakale G, Sekhar BS, Rama Sreekanth PS, Rao KV, Knite M. A review on porous polymer composite materials for multifunctional electronic applications. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1542729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | - John-John Cabibihan
- Mechanical and Industrial Engineering Department, Qatar University, Doha, Qatar
| | - Kalim Deshmukh
- Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai TN, India
| | - Solleti Goutham
- Centre for Nano Science and Technology, JNT University Hyderabad, Kukatpally, Hyderabad, Telangana State, India
| | | | | | - Igors Klemenoks
- Institute of Technical Physics, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, LV, Latvia
| | - Gita Sakale
- Institute of Technical Physics, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, LV, Latvia
| | - Bhogilla Satya Sekhar
- Faculty of Mechanical Engineering, Indian Institute of Information Technology Design and Manufacturing, Kurnool, Andhra Pradesh, India
| | - P. S. Rama Sreekanth
- Department of Mechanical Engineering, VIT-AP University, Amaravati, Guntur, Andhra Pradesh, India
| | - Kalagadda Venkateswara Rao
- Centre for Nano Science and Technology, JNT University Hyderabad, Kukatpally, Hyderabad, Telangana State, India
| | - Maris Knite
- Institute of Technical Physics, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, LV, Latvia
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30
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Sankaran S, Deshmukh K, Ahamed MB, Sadasivuni KK, Faisal M, Pasha SKK. Electrical and Electromagnetic Interference (EMI) shielding properties of hexagonal boron nitride nanoparticles reinforced polyvinylidene fluoride nanocomposite films. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1542725] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Sowmya Sankaran
- Department of Physics, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, India
| | - Kalim Deshmukh
- Department of Physics, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, India
| | - M. Basheer Ahamed
- Department of Physics, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, India
| | | | - Muhammad Faisal
- Research Center-Physics, PES University-Electronic City Campus, Bangalore-, India
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31
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Saboor A, Khan AN, Jan R, Sharif S, Khan M. Mechanical, dielectric and EMI shielding response of styrene acrylonitrile, styrene acrylonitrile/polyaniline polymer blends, upon incorporation of few layer graphene at low filler loadings. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1648-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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32
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Shareef SNM, Chidambaram K, Pasha SKK. Structure, morphology and dielectric properties of hexagonal boron nitride nanoparticles reinforced biopolymer nanocomposites. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1542726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- S. N. M. Shareef
- Department of Physics, School of Advanced Sciences, VIT University, Vellore, TN, India
| | - K. Chidambaram
- Department of Physics, School of Advanced Sciences, VIT University, Vellore, TN, India
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33
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Fabrication of super-stretchable and electrical conductive membrane of spandex/multi-wall carbon nanotube/reduced graphene oxide composite. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1597-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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34
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Preparation of Miscible PVA/PEG Blends and Effect of Graphene Concentration on Thermal, Crystallization, Morphological, and Mechanical Properties of PVA/PEG (10 wt%) Blend. INT J POLYM SCI 2018. [DOI: 10.1155/2018/8527693] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Water-soluble polymers such as poly(vinyl alcohol) (PVA) and poly(ethylene glycol) (PEG) and their nanocomposites with graphene were prepared by using a solution mixing and casting technique. The effect of different PEG loadings was investigated to determine the optimum blend ratio. The films were characterized using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analyzer (TGA) methods. Also, the mechanical properties including tensile strength and elongation at break were measured using a universal tensile testing machine. FTIR results confirmed the formation of the H-bond between PEG and PVA. DSC studies revealed that PEG has a significant plasticization effect on PVA as seen by the drop in the glass transition temperature (Tg). The blend with 10 wt% PEG loading was found to be the optimum blend because of good compatibility as shown by FTIR and SEM results and improved thermal properties. PVA/PEG (10%) nanocomposites were prepared using graphene as a nanofiller. It was found that the elongation at break increased by 62% from 147% for the PVA/PEG (10%) blend to 209% for the nanocomposite with graphene loading of 0.2 wt%. The experimental values of tensile strength were compared using the predictive model of Nicolais and Narkis.
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Effects of amorphous silica nanoparticles and polymer blend compositions on the structural, thermal and dielectric properties of PEO–PMMA blend based polymer nanocomposites. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1510-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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36
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Qin S, Qiu S, Cui M, Dai Z, Zhao H, Wang L. Synthesis and properties of polyimide nanocomposite containing dopamine-modified graphene oxide. HIGH PERFORM POLYM 2018. [DOI: 10.1177/0954008318768857] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polyimide (PI)/graphene oxide (GO) nanocomposites with different loads of polydopamine-modified graphene oxide (PI/PDA-GO) were prepared. Meanwhile, the as-prepared PI/PDA-GO nanocomposites were compared with pure PI in terms of their morphologies, thermal and mechanical properties. Only a minor mass fraction of PDA-GO was required to enhance the mechanical and thermal properties of PI. The tensile strength of 1 wt% PDA-GO/PI was increased by 12% and the tensile modulus of 1 wt% PDA-GO/PI nanocomposites was increased by 25% compared to those of pure PI. Vickers hardness of the PI hybrid films increased with PDA-GO load and the maximum enhancement in Vickers hardness was observed at 2 wt% PDA-GO loading. On the other hand, the storage modulus of 1 wt% PDA-GO/PI was increased by 54% than that of neat PI. In consideration of the facile preparation of PDA-coated GO, superior physical properties over neat PI, PI/PDA-GO nanocomposites showed promising applications as functional films or composites.
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Affiliation(s)
- Songlv Qin
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
- College of Materials Science and Engineering, Shanghai University, Shanghai, China
| | - Shihui Qiu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Mingjun Cui
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Zhendong Dai
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Haichao Zhao
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Liping Wang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
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Goutham S, Bykkam S, Sadasivuni KK, Kumar DS, Ahmadipour M, Ahmad ZA, Rao KV. Room temperature LPG resistive sensor based on the use of a few-layer graphene/SnO2 nanocomposite. Mikrochim Acta 2017; 185:69. [DOI: 10.1007/s00604-017-2537-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/09/2017] [Indexed: 10/18/2022]
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38
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Deshmukh K, Sankaran S, Basheer Ahamed M, Khadheer Pasha SK, Sadasivuni KK, Ponnamma D, Al-Ali Almaadeed M, Chidambaram K. Studies on the Electrical Properties of Graphene Oxide-Reinforced Poly (4-Styrene Sulfonic Acid) and Polyvinyl Alcohol Blend Composites. INTERNATIONAL JOURNAL OF NANOSCIENCE 2017. [DOI: 10.1142/s0219581x17600055] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the present study, graphene oxide (GO)-reinforced poly (4-styrenesulfonic acid) (PSSA)/polyvinyl alcohol (PVA) blend composite films were prepared using colloidal blending technique at various concentrations of GO (0–3[Formula: see text]wt.%). The morphological investigations of the prepared composites were carried out using polarized optical microscopy and scanning electron microscopy. The electrical properties of composites were evaluated using an impedance analyzer in the frequency range 50[Formula: see text]Hz to 20[Formula: see text]MHz and temperature in the range 40–150[Formula: see text]C. Morphological studies infer that GO was homogeneously dispersed in the PSSA/PVA blend matrix. Investigations of electrical property indicate that the incorporation of GO into PSSA/PVA blend matrix resulted in the enhancement of the impedance ([Formula: see text] and the quality factor ([Formula: see text]-factor) values. A maximum impedance of about 4.32[Formula: see text][Formula: see text][Formula: see text]10[Formula: see text] was observed at 50[Formula: see text]Hz and 90[Formula: see text]C for PSSA/PVA/GO composites with 3[Formula: see text]wt.% GO loading. The [Formula: see text]-factor also increased from 8.37 for PSSA/PVA blend to 59.8 for PSSA/PVA/GO composites with 3[Formula: see text]wt.% GO loading. These results indicate that PSSA/PVA/GO composites can be used for high-[Formula: see text] capacitor applications.
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Affiliation(s)
- Kalim Deshmukh
- Department of Physics, B. S. Abdur Rahman University, Chennai 600048, Tamil Nadu, India
| | - Sowmya Sankaran
- Department of Physics, B. S. Abdur Rahman University, Chennai 600048, Tamil Nadu, India
| | - M. Basheer Ahamed
- Department of Physics, B. S. Abdur Rahman University, Chennai 600048, Tamil Nadu, India
| | - S. K. Khadheer Pasha
- Department of Physics, School of Advanced Sciences, VIT University, Vellore 632014, Tamil Nadu, India
| | - Kishor Kumar Sadasivuni
- Mechanical and Industrial Engineering Department, Qatar University, P. O. Box 2713, Doha, Qatar
| | | | | | - K. Chidambaram
- Department of Physics, School of Advanced Sciences, VIT University, Vellore 632014, Tamil Nadu, India
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Graphene-based nanomaterials for drug and/or gene delivery, bioimaging, and tissue engineering. Drug Discov Today 2017; 22:1302-1317. [DOI: 10.1016/j.drudis.2017.04.002] [Citation(s) in RCA: 205] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 03/01/2017] [Accepted: 04/12/2017] [Indexed: 01/19/2023]
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40
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Gounder Thangamani J, Deshmukh K, Sadasivuni KK, Ponnamma D, Goutham S, Venkateswara Rao K, Chidambaram K, Basheer Ahamed M, Nirmala Grace A, Faisal M, Khadheer Pasha SK. White graphene reinforced polypyrrole and poly(vinyl alcohol) blend nanocomposites as chemiresistive sensors for room temperature detection of liquid petroleum gases. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2402-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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41
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Solution-processed white graphene-reinforced ferroelectric polymer nanocomposites with improved thermal conductivity and dielectric properties for electronic encapsulation. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1189-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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42
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Deshmukh K, Ahamed MB, Sadasivuni KK, Ponnamma D, AlMaadeed MAA, Deshmukh RR, Pasha SKK, Polu AR, Chidambaram K. Fumed SiO2nanoparticle reinforced biopolymer blend nanocomposites with high dielectric constant and low dielectric loss for flexible organic electronics. J Appl Polym Sci 2016. [DOI: 10.1002/app.44427] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Kalim Deshmukh
- Department of Physics; B. S. Abdur Rahman University; Chennai 600048 TN India
| | - M. Basheer Ahamed
- Department of Physics; B. S. Abdur Rahman University; Chennai 600048 TN India
| | | | | | | | - Rajendra R. Deshmukh
- Department of Physics; Institute of Chemical Technology; Matunga Mumbai 400019 India
| | - S. K. Khadheer Pasha
- Department of Physics, School of Advanced Sciences; VIT University; Vellore 632014 TN India
| | - Anji Reddy Polu
- Department of Physics; Vardhaman College of Engineering; Kacharam, Shamshabad 501218 Hyderabad, Telangana India
| | - K. Chidambaram
- Department of Physics, School of Advanced Sciences; VIT University; Vellore 632014 TN India
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